1N3S - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Title :   BIOSYNTHESIS OF PTERIDINS. REACTION MECHANISM OF GTP CYCLOHYDROLASE I

Authors :   J. Rebelo, G. Auerbach, G. Bader, A. Bracher, H. Nar, C. Hoesl, N. Schram J. Kaiser, A. Bacher, R. Huber, M. Fischer

Date :   29 Oct 02 (Deposition) - 02 Mar 04 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.55

Chains :   Asym. Unit : A,B,C,D,E,F,G,H,I,J
Biol. Unit 1: A,B,C,D,E  (1x)
Biol. Unit 2: F,G,H,I,J  (1x)
Biol. Unit 3: A (1x),B (1x),C (1x),D (1x),E (1x),F (1x),G (1x),H (1x),I (1x),J (1x)

Keywords :   Biosynthesis, Folic Acid, Gtp Cyclohydrolase I, Tetrahydropterin, Pteridines, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Rebelo, G. Auerbach, G. Bader, A. Bracher, H. Nar, C. Hoesl, N. Schramek, J. Kaiser, A. Bacher, R. Huber, M. Fischer
Biosynthesis Of Pteridines. Reaction Mechanism Of Gtp Cyclohydrolase I
J. Mol. Biol. V. 326 503 2003
PubMed-ID: 12559918 | Reference-DOI: 10.1016/S0022-2836(02)01303-7

Molecule 1 - GTP CYCLOHYDROLASE I
	Chains	:	A, B, C, D, E, F, G, H, I, J
	EC Number	:	3.5.4.16
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PNC0
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Mutation	:	YES
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562

		1	2	3	4	5	6	7	8	9	10
Asymmetric Unit	:	A	B	C	D	E	F	G	H	I	J
Biological Unit 1 (1x)	:	A	B	C	D	E
Biological Unit 2 (1x)	:						F	G	H	I	J
Biological Unit 3 (1x)	:	A (1x)	B (1x)	C (1x)	D (1x)	E (1x)	F (1x)	G (1x)	H (1x)	I (1x)	J (1x)

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 10)

No.	Name	Count	Type	Full Name
1	GTP	10	Ligand/Ion	GUANOSINE-5'-TRIPHOSPHATE

Biological Unit 1 (1, 5)

No.	Name	Count	Type	Full Name
1	GTP	5	Ligand/Ion	GUANOSINE-5'-TRIPHOSPHATE

Biological Unit 2 (1, 5)

No.	Name	Count	Type	Full Name
1	GTP	5	Ligand/Ion	GUANOSINE-5'-TRIPHOSPHATE

Biological Unit 3 (1, 5)

No.	Name	Count	Type	Full Name
1	GTP	5	Ligand/Ion	GUANOSINE-5'-TRIPHOSPHATE

Asymmetric Unit (10, 10)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	HIS A:112 , VAL A:150 , GLN A:151 , GLU A:152 , HIS A:179 , ARG A:185 , HOH A:4412 , THR B:87 , VAL B:131 , ILE B:132 , GLY B:133 , LEU B:134 , SER B:135 , LYS B:136 , ARG B:139 , HOH B:412 , HOH B:414 , ARG G:65	BINDING SITE FOR RESIDUE GTP B 411
02	AC2	SOFTWARE	HIS B:112 , VAL B:150 , GLN B:151 , GLU B:152 , ARG B:185 , THR C:87 , VAL C:131 , ILE C:132 , GLY C:133 , LEU C:134 , SER C:135 , LYS C:136 , ARG C:139 , HOH C:1415 , ARG F:65	BINDING SITE FOR RESIDUE GTP C 1411
03	AC3	SOFTWARE	HIS C:112 , VAL C:150 , GLN C:151 , GLU C:152 , HIS C:179 , ARG C:185 , HOH C:1419 , THR D:87 , VAL D:131 , ILE D:132 , GLY D:133 , LEU D:134 , SER D:135 , LYS D:136 , ARG D:139 , HOH D:2430 , HOH D:2432 , ARG J:65	BINDING SITE FOR RESIDUE GTP D 2411
04	AC4	SOFTWARE	HIS D:112 , VAL D:150 , GLN D:151 , GLU D:152 , HIS D:179 , ARG D:185 , THR E:87 , VAL E:131 , ILE E:132 , GLY E:133 , LEU E:134 , SER E:135 , LYS E:136 , ARG E:139 , HOH E:3416 , ARG I:65	BINDING SITE FOR RESIDUE GTP E 3411
05	AC5	SOFTWARE	THR A:87 , VAL A:131 , ILE A:132 , GLY A:133 , LEU A:134 , SER A:135 , LYS A:136 , ARG A:139 , HIS E:112 , VAL E:150 , GLN E:151 , GLU E:152 , HIS E:179 , ARG E:185 , HOH E:3417 , ARG H:65	BINDING SITE FOR RESIDUE GTP A 4411
06	AC6	SOFTWARE	ARG B:65 , HIS F:112 , VAL F:150 , GLN F:151 , GLU F:152 , HIS F:179 , ARG F:185 , THR G:87 , VAL G:131 , ILE G:132 , GLY G:133 , LEU G:134 , SER G:135 , LYS G:136 , ARG G:139 , HOH G:5414 , HOH G:5423	BINDING SITE FOR RESIDUE GTP G 5411
07	AC7	SOFTWARE	ARG A:65 , HIS G:112 , VAL G:150 , GLN G:151 , GLU G:152 , HIS G:179 , ARG G:185 , THR H:87 , VAL H:131 , ILE H:132 , GLY H:133 , LEU H:134 , SER H:135 , LYS H:136 , ARG H:139 , HOH H:6415 , HOH H:6416	BINDING SITE FOR RESIDUE GTP H 6411
08	AC8	SOFTWARE	ARG E:65 , HIS H:112 , VAL H:150 , GLN H:151 , GLU H:152 , HIS H:179 , ARG H:185 , THR I:87 , VAL I:131 , ILE I:132 , GLY I:133 , LEU I:134 , SER I:135 , LYS I:136 , ARG I:139	BINDING SITE FOR RESIDUE GTP I 7411
09	AC9	SOFTWARE	ARG D:65 , HIS I:112 , VAL I:150 , GLN I:151 , GLU I:152 , HIS I:179 , ARG I:185 , THR J:87 , VAL J:131 , ILE J:132 , GLY J:133 , LEU J:134 , SER J:135 , LYS J:136 , ARG J:139 , HOH J:8413 , HOH J:8418 , HOH J:8419	BINDING SITE FOR RESIDUE GTP J 8411
10	BC1	SOFTWARE	ARG C:65 , THR F:87 , VAL F:131 , ILE F:132 , GLY F:133 , LEU F:134 , SER F:135 , LYS F:136 , ARG F:139 , HOH F:9421 , HOH F:9422 , HOH F:9423 , HIS J:112 , VAL J:150 , GLN J:151 , GLU J:152 , HIS J:179 , ARG J:185	BINDING SITE FOR RESIDUE GTP F 9411

Asymmetric Unit

No.	Residues
1	C:110	-	C:181
2	F:110	-	F:181
3	J:110	-	J:181

Asymmetric Unit

No.	Residues
1	Pro C:25	-	Pro C:26

(no "SAP(SNP)/Variant" information available for 1N3S)

Asymmetric Unit (2, 20)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GTP_CYCLOHYDROL_1_1	PS00859	GTP cyclohydrolase I signature 1.	GCH1_ECOLI	98-114	10	A:97-112 B:97-112 C:97-112 D:97-112 E:97-112 F:97-112 G:97-112 H:97-112 I:97-112 J:97-112
2	GTP_CYCLOHYDROL_1_2	PS00860	GTP cyclohydrolase I signature 2.	GCH1_ECOLI	146-156	10	A:145-155 B:145-155 C:145-155 D:145-155 E:145-155 F:145-155 G:145-155 H:145-155 I:145-155 J:145-155

Biological Unit 1 (2, 10)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GTP_CYCLOHYDROL_1_1	PS00859	GTP cyclohydrolase I signature 1.	GCH1_ECOLI	98-114	5	A:97-112 B:97-112 C:97-112 D:97-112 E:97-112 - - - - -
2	GTP_CYCLOHYDROL_1_2	PS00860	GTP cyclohydrolase I signature 2.	GCH1_ECOLI	146-156	5	A:145-155 B:145-155 C:145-155 D:145-155 E:145-155 - - - - -

Biological Unit 2 (2, 10)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GTP_CYCLOHYDROL_1_1	PS00859	GTP cyclohydrolase I signature 1.	GCH1_ECOLI	98-114	5	- - - - - F:97-112 G:97-112 H:97-112 I:97-112 J:97-112
2	GTP_CYCLOHYDROL_1_2	PS00860	GTP cyclohydrolase I signature 2.	GCH1_ECOLI	146-156	5	- - - - - F:145-155 G:145-155 H:145-155 I:145-155 J:145-155

Biological Unit 3 (2, 20)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GTP_CYCLOHYDROL_1_1	PS00859	GTP cyclohydrolase I signature 1.	GCH1_ECOLI	98-114	10	A:97-112 B:97-112 C:97-112 D:97-112 E:97-112 F:97-112 G:97-112 H:97-112 I:97-112 J:97-112
2	GTP_CYCLOHYDROL_1_2	PS00860	GTP cyclohydrolase I signature 2.	GCH1_ECOLI	146-156	10	A:145-155 B:145-155 C:145-155 D:145-155 E:145-155 F:145-155 G:145-155 H:145-155 I:145-155 J:145-155

(no "Exon" information available for 1N3S)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sa_ A: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sA01 A:1-85  [code=1.10.286.10, no name defined]                                  1n3sA02 A:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhh........eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s A   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain B from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sb_ B: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sB01 B:1-85  [code=1.10.286.10, no name defined]                                  1n3sB02 B:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhhhhhh....eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s B   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain C from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sc_ C: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sC01 C:1-85  [code=1.10.286.10, no name defined]                                  1n3sC02 C:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhhhhhh....eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s C   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain D from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sd_ D: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sD01 D:1-85  [code=1.10.286.10, no name defined]                                  1n3sD02 D:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhhhhhh....eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s D   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain E from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3se_ E: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sE01 E:1-85  [code=1.10.286.10, no name defined]                                  1n3sE02 E:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhhhhhh....eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s E   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain F from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sf_ F: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sF01 F:1-85  [code=1.10.286.10, no name defined]                                  1n3sF02 F:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhh........eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s F   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain G from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sg_ G: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sG01 G:1-85  [code=1.10.286.10, no name defined]                                  1n3sG02 G:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhh........eee........eeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s G   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain H from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sh_ H: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sH01 H:1-85  [code=1.10.286.10, no name defined]                                  1n3sH02 H:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhh........eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s H   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain I from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3si_ I: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sI01 I:1-85  [code=1.10.286.10, no name defined]                                  1n3sI02 I:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhh........eee.......eeeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s I   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Chain J from PDB  Type:PROTEIN  Length:221
 aligned with GCH1_ECOLI | P0A6T5 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221 
           GCH1_ECOLI     2 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 222
               SCOP domains d1n3sj_ J: GTP cyclohydrolase I                                                                                                                                                                                               SCOP domains
               CATH domains 1n3sJ01 J:1-85  [code=1.10.286.10, no name defined]                                  1n3sJ02 J:86-221  [code=3.30.1130.10, no name defined]                                                                                   CATH domains
           Pfam domains (1) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ01 J:116-201                                                     -------------------- Pfam domains (1)
           Pfam domains (2) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ02 J:116-201                                                     -------------------- Pfam domains (2)
           Pfam domains (3) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ03 J:116-201                                                     -------------------- Pfam domains (3)
           Pfam domains (4) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ04 J:116-201                                                     -------------------- Pfam domains (4)
           Pfam domains (5) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ05 J:116-201                                                     -------------------- Pfam domains (5)
           Pfam domains (6) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ06 J:116-201                                                     -------------------- Pfam domains (6)
           Pfam domains (7) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ07 J:116-201                                                     -------------------- Pfam domains (7)
           Pfam domains (8) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ08 J:116-201                                                     -------------------- Pfam domains (8)
           Pfam domains (9) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ09 J:116-201                                                     -------------------- Pfam domains (9)
          Pfam domains (10) -------------------------------------------------------------------------------------------------------------------GTP_cyclohydroI-1n3sJ10 J:116-201                                                     -------------------- Pfam domains (10)
         Sec.struct. author ...hhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh.hhhhhhhhh....eee........eeeeeeeeeeee.....eeeeeeeeee....eeehhhhhhhhhhhhhh.eehhhhhhhhhhhhhhhhhh...eeeeeeeeehhhhh........eeeeeee.hhhh.hhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------GTP_CYCLOHYDROL_1-------------------------------GTP_CYCLOHY------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n3s J   1 PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCEHSFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN 221
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a+b) (23004)

Fold: T-fold (116)

Superfamily: Tetrahydrobiopterin biosynthesis enzymes-like (113)

Family: GTP cyclohydrolase I (15)

Protein domain: GTP cyclohydrolase I (14)

Escherichia coli [TaxId: 562] (7)

1a	d1n3sa_	A:
1b	d1n3sb_	B:
1c	d1n3sc_	C:
1d	d1n3sd_	D:
1e	d1n3se_	E:
1f	d1n3sf_	F:
1g	d1n3sg_	G:
1h	d1n3sh_	H:
1i	d1n3si_	I:
1j	d1n3sj_	J:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: GTP Cyclohydrolase I, domain 2 (31)

Homologous Superfamily: [code=3.30.1130.10, no name defined] (31)

Escherichia coli. Organism_taxid: 562. (5)

1a	1n3sA02	A:86-221
1b	1n3sB02	B:86-221
1c	1n3sC02	C:86-221
1d	1n3sD02	D:86-221
1e	1n3sE02	E:86-221
1f	1n3sF02	F:86-221
1g	1n3sG02	G:86-221
1h	1n3sH02	H:86-221
1i	1n3sI02	I:86-221
1j	1n3sJ02	J:86-221

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: GTP Cyclohydrolase I; Chain A, domain 1 (23)

Homologous Superfamily: [code=1.10.286.10, no name defined] (14)

Escherichia coli. Organism_taxid: 562. (5)

2a	1n3sA01	A:1-85
2b	1n3sB01	B:1-85
2c	1n3sC01	C:1-85
2d	1n3sD01	D:1-85
2e	1n3sE01	E:1-85
2f	1n3sF01	F:1-85
2g	1n3sG01	G:1-85
2h	1n3sH01	H:1-85
2i	1n3sI01	I:1-85
2j	1n3sJ01	J:1-85

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: THBO-biosyn (64)

Family: GTP_cyclohydroI (9)

Escherichia coli (strain K12) (3)

1a	GTP_cyclohydroI-1n3sJ01	J:116-201
1b	GTP_cyclohydroI-1n3sJ02	J:116-201
1c	GTP_cyclohydroI-1n3sJ03	J:116-201
1d	GTP_cyclohydroI-1n3sJ04	J:116-201
1e	GTP_cyclohydroI-1n3sJ05	J:116-201
1f	GTP_cyclohydroI-1n3sJ06	J:116-201
1g	GTP_cyclohydroI-1n3sJ07	J:116-201
1h	GTP_cyclohydroI-1n3sJ08	J:116-201
1i	GTP_cyclohydroI-1n3sJ09	J:116-201
1j	GTP_cyclohydroI-1n3sJ10	J:116-201

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D,E,F,G,H,I,J (GCH1_ECOLI | P0A6T5)

molecular function
	GO:0005525	GTP binding	Interacting selectively and non-covalently with GTP, guanosine triphosphate.
	GO:0003934	GTP cyclohydrolase I activity	Catalysis of the reaction: GTP + H2O = formate + 7,8-dihydroneopterin 3'-triphosphate.
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	GO:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
	GO:0035998	7,8-dihydroneopterin 3'-triphosphate biosynthetic process	The chemical reactions and pathways resulting in the formation of 7,8-dihydroneopterin 3'-triphosphate.
	GO:0008152	metabolic process	The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
	GO:0006730	one-carbon metabolic process	The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
	GO:0008616	queuosine biosynthetic process	The chemical reactions and pathways resulting in the formation of queuosines, any of a series of nucleosides found in tRNA and having an additional pentenyl ring added via an NH group to the methyl group of 7-methylguanosine. The pentenyl ring may carry other substituents.
	GO:0006729	tetrahydrobiopterin biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.
	GO:0046654	tetrahydrofolate biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0043234	protein complex	A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.

Asymmetric Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		GTP	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]
		AC5	[ RasMol ]	+environment [ RasMol ]
		AC6	[ RasMol ]	+environment [ RasMol ]
		AC7	[ RasMol ]	+environment [ RasMol ]
		AC8	[ RasMol ]	+environment [ RasMol ]
		AC9	[ RasMol ]	+environment [ RasMol ]
		BC1	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Pro C:25 - Pro C:26	[ RasMol ]

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]
		Biological Unit 3	[ Jena3D ]

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym. Unit PNG format \| Asym. Unit - sites PNG format \| Biol. Unit 1 PNG format \| Biol. Unit 1 - sites PNG format \| Biol. Unit 2 PNG format \| Biol. Unit 3 PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)

Access by PDB/NDB ID
	1n3s
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	GCH1_ECOLI \| P0A6T5
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	3.5.4.16
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	GCH1_ECOLI \| P0A6T5
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	GCH1_ECOLI \| P0A6T5	:	1a8r 1a9c 1fbx 1gtp 1n3r 1n3t

1n3r	1N3R CONTAINS THE SAME PROTEIN WITH MUTANT H112S
1n3t	1N3T CONTAINS THE SAME PROTEIN WITH MUTANT C181S

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 10)

Sites (10, 10)

SS Bonds (3, 3)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 20)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 10)

CATH Domains (2, 20)

Pfam Domains (1, 10)

Gene Ontology (16, 16)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File