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Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Title :   ESCHERICHIA COLI GLUTAMINE PHOSPHORIBOSYLPYROPHOSPHATE (PRPP) AMIDOTRANSFERASE COMPLEXED WITH MN-CPRPP AND 5-OXO-NORLEUCINE

Authors :   J. M. Krahn, J. L. Smith

Date :   09 Jul 97 (Deposition) - 15 Apr 98 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

Chains :   Asym. Unit : A,B
Biol. Unit 1: A,B  (2x)

Keywords :   Transferase, Glutamine Amidotransferase, Purine Biosynthesis, Glycosyltransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. M. Krahn, J. H. Kim, M. R. Burns, R. J. Parry, H. Zalkin, J. L. Smith
Coupled Formation Of An Amidotransferase Interdomain Ammonia Channel And A Phosphoribosyltransferase Active Site.
Biochemistry V. 36 11061 1997
PubMed-ID: 9333323 | Reference-DOI: 10.1021/BI9714114
(for further references see the PDB file header)

Molecule 1 - GLUTAMINE PHOSPHORIBOSYLPYROPHOSPHATE AMIDOTRANSFERASE
	Chains	:	A, B
	EC Number	:	2.4.2.14
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PT7F1
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Gene	:	PURF
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (2x)	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 9)

No.	Name	Count	Type	Full Name
1	MN	5	Ligand/Ion	MANGANESE (II) ION
2	ONL	2	Ligand/Ion	5-OXO-L-NORLEUCINE
3	PCP	2	Ligand/Ion	1-ALPHA-PYROPHOSPHORYL-2-ALPHA,3-ALPHA-DIHYDROXY-4-BETA-CYCLOPENTANE-METHANOL-5-PHOSPHATE

Biological Unit 1 (2, 8)

No.	Name	Count	Type	Full Name
1	MN	-1	Ligand/Ion	MANGANESE (II) ION
2	ONL	4	Ligand/Ion	5-OXO-L-NORLEUCINE
3	PCP	4	Ligand/Ion	1-ALPHA-PYROPHOSPHORYL-2-ALPHA,3-ALPHA-DIHYDROXY-4-BETA-CYCLOPENTANE-METHANOL-5-PHOSPHATE

Asymmetric Unit (13, 13)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASP A:366 , ASP A:367 , PCP A:505 , HOH A:2378 , HOH A:2379	BINDING SITE FOR RESIDUE MN A 506
02	AC2	SOFTWARE	ASP B:366 , ASP B:367 , PCP B:505 , HOH B:2451 , HOH B:2452	BINDING SITE FOR RESIDUE MN B 506
03	AC3	SOFTWARE	ASP A:476 , THR A:480 , GLU B:376 , ILE B:428	BINDING SITE FOR RESIDUE MN B 1449
04	AC4	SOFTWARE	GLU A:449	BINDING SITE FOR RESIDUE MN A 2376
05	AC5	SOFTWARE	GLU B:449 , ASP B:471 , HOH B:2543 , HOH B:2597 , HOH B:2598 , HOH B:2599 , HOH B:2600	BINDING SITE FOR RESIDUE MN B 2449
06	AC6	SOFTWARE	CYS A:1 , ARG A:73 , TYR A:74 , THR A:76 , ALA A:77 , GLN A:86 , ASN A:101 , GLY A:102 , ASP A:127 , SER A:128 , HOH A:2402	BINDING SITE FOR RESIDUE ONL A 2377
07	AC7	SOFTWARE	TYR A:258 , GLU A:303 , THR A:304 , ARG A:332 , THR A:333 , PHE A:334 , LYS A:349 , ASP A:366 , ASP A:367 , SER A:368 , ILE A:369 , VAL A:370 , ARG A:371 , GLY A:372 , THR A:373 , THR A:374 , MN A:506 , HOH A:2378 , HOH A:2379 , HOH A:2411 , HOH A:2431 , ARG B:328	BINDING SITE FOR RESIDUE PCP A 505
08	AC8	SOFTWARE	CYS B:1 , ARG B:73 , TYR B:74 , THR B:76 , ALA B:77 , GLN B:86 , HIS B:100 , ASN B:101 , GLY B:102 , ASP B:127 , SER B:128 , HOH B:2482	BINDING SITE FOR RESIDUE ONL B 2450
09	AC9	SOFTWARE	ARG A:328 , TYR B:258 , GLU B:303 , THR B:304 , ARG B:332 , THR B:333 , PHE B:334 , LYS B:349 , ASP B:366 , ASP B:367 , SER B:368 , VAL B:370 , ARG B:371 , GLY B:372 , THR B:373 , THR B:374 , MN B:506 , HOH B:2457 , HOH B:2460 , HOH B:2502 , HOH B:2574	BINDING SITE FOR RESIDUE PCP B 505
10	NTA	UNKNOWN	CYS A:1	NTN AMIDOTRANSFERASE ACTIVE SITE. THE ACTIVE SITE IN THIS STRUCTURE CONTAINS THE PRODUCT OF COVALENT INACTIVATION BY THE GLUTAMINE ANALOGUE DON.
11	NTB	UNKNOWN	CYS B:1	NTN AMIDOTRANSFERASE ACTIVE SITE. THE ACTIVE SITE IN THIS STRUCTURE CONTAINS THE PRODUCT OF COVALENT INACTIVATION BY THE GLUTAMINE ANALOGUE DON.
12	PRB	UNKNOWN	ASP B:366 , ASP B:367	PHOSPHORIBOSYL TRANSFERASE ACTIVE SITE. THE ACTIVE SITE IN THIS STRUCTURE CONTAINS CPRPP, A CARBOCYCLIC PRPP ANALOGUE. ASP 366 AND ASP 367 FUNCTION AS METAL LIGANDS, AND ARE THE HALLMARK OF PRTASE ENZYMES. MG++ IS THE PRIMARY BIOLOGICALLY FUNCTIONAL METAL ION. MN++ IS PRESENT IN THIS STRUCTURE, AND DEMONSTRATES A COORDINATION GEOMETRY VERY SIMILAR TO TYPICAL MG++ COORDINATIONS.
13	PRT	UNKNOWN	ASP A:366 , ASP A:367	PHOSPHORIBOSYL TRANSFERASE ACTIVE SITE. THE ACTIVE SITE IN THIS STRUCTURE CONTAINS CPRPP, A CARBOCYCLIC PRPP ANALOGUE. ASP 366 AND ASP 367 FUNCTION AS METAL LIGANDS, AND ARE THE HALLMARK OF PRTASE ENZYMES. MG++ IS THE PRIMARY BIOLOGICALLY FUNCTIONAL METAL ION. MN++ IS PRESENT IN THIS STRUCTURE, AND DEMONSTRATES A COORDINATION GEOMETRY VERY SIMILAR TO TYPICAL MG++ COORDINATIONS.

(no "SS Bond" information available for 1ECC)

Asymmetric Unit

No.	Residues
1	Gln A:86	-	Pro A:87
2	Ser A:92	-	Pro A:93
3	Tyr A:145	-	Pro A:146
4	Pro A:302	-	Glu A:303
5	Gln B:86	-	Pro B:87
6	Ser B:92	-	Pro B:93
7	Tyr B:145	-	Pro B:146
8	Pro B:302	-	Glu B:303

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

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_ECOLI	2-236	2	A:1-235 B:1-235
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_SHIFL	2-236	2	A:1-235 B:1-235
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_ECOLI	363-375	2	A:362-374 B:362-374
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_SHIFL	363-375	2	A:362-374 B:362-374

Biological Unit 1 (2, 16)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_ECOLI	2-236	4	A:1-235 B:1-235
1	GATASE_TYPE_2	PS51278	Glutamine amidotransferase type 2 domain profile.	PUR1_SHIFL	2-236	4	A:1-235 B:1-235
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_ECOLI	363-375	4	A:362-374 B:362-374
2	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	PUR1_SHIFL	363-375	4	A:362-374 B:362-374

(no "Exon" information available for 1ECC)

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:492
 aligned with PUR1_ECOLI | P0AG16 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_ECOLI     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1ecca2 A:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecca1 A:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1eccA01 A:1-275,A:401-411,A:446-492 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1eccA02 A:276-326,A:349-400,A:412-445              ----------------------1eccA02 A:276-326,A:349-400,A:412-445               1eccA01    1eccA02                           1eccA01 A:1-275,A:401-411,A:446-492             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee........hhh...eee.....eeeeeeeee..hhhhhhhhhh..........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeee.....eeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhh........eee............hhhhhhhhhhheee.hhh....eeeeee......hhhhhhhhhhhh....eeeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhh.hhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE GATASE_TYPE_2  PDB: A:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecc A   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490

Chain A from PDB  Type:PROTEIN  Length:492
 aligned with PUR1_SHIFL | P0AG17 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_SHIFL     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1ecca2 A:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1ecca1 A:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1eccA01 A:1-275,A:401-411,A:446-492 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1eccA02 A:276-326,A:349-400,A:412-445              ----------------------1eccA02 A:276-326,A:349-400,A:412-445               1eccA01    1eccA02                           1eccA01 A:1-275,A:401-411,A:446-492             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee........hhh...eee.....eeeeeeeee..hhhhhhhhhh..........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeee.....eeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhh........eee............hhhhhhhhhhheee.hhh....eeeeee......hhhhhhhhhhhh....eeeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhh.hhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) GATASE_TYPE_2  PDB: A:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecc A   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490

Chain B from PDB  Type:PROTEIN  Length:492
 aligned with PUR1_ECOLI | P0AG16 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_ECOLI     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1eccb2 B:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1eccb1 B:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1eccB01 B:1-275,B:401-411,B:446-492 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1eccB02 B:276-326,B:349-400,B:412-445              ----------------------1eccB02 B:276-326,B:349-400,B:412-445               1eccB01    1eccB02                           1eccB01 B:1-275,B:401-411,B:446-492             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee........hhh...eee.....eeeeeeeee..hhhhhhhhhh..........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeeeee..eeeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhhh.......eee............hhhhhhhhhhheee.hhh...eeeeeee......hhhhhhhhhhhh..eeeeeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhh.hhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE GATASE_TYPE_2  PDB: B:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecc B   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490

Chain B from PDB  Type:PROTEIN  Length:492
 aligned with PUR1_SHIFL | P0AG17 from UniProtKB/Swiss-Prot  Length:505

    Alignment length:492
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491  
           PUR1_SHIFL     2 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 493
               SCOP domains d1eccb2 B:1-249 Glutamine PRPP amidotransferase, N-terminal domain                                                                                                                                                                                       d1eccb1 B:250-492 Glutamine PRPP amidotransferase, C-terminal domain                                                                                                                                                                                SCOP domains
               CATH domains 1eccB01 B:1-275,B:401-411,B:446-492 Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1                                                                                                                                                                                     1eccB02 B:276-326,B:349-400,B:412-445              ----------------------1eccB02 B:276-326,B:349-400,B:412-445               1eccB01    1eccB02                           1eccB01 B:1-275,B:401-411,B:446-492             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeee.....hhhhhhhhhh.hhh...eeeeeee.....eeeeeee..hhhh..hhhhhh....eeeeeee........hhh...eee.....eeeeeeeee..hhhhhhhhhh..........hhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh..eeeeeeeee...eeeeee........eeeeeeee..eeeeeee..hhhhhhh..eeeee....eeeeee....eeeee..........hhhhh.............hhhhhhhhhhhhhhhhhhh.......eeee.....hhhhhhhhhhh.......eee............hhhhhhhhhhheee.hhh...eeeeeee......hhhhhhhhhhhh..eeeeeeee.................hhh.......hhhhhhhh...eeee..hhhhhhhhhhh.........hhhh.........hhhhhhhhhhh.hhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) GATASE_TYPE_2  PDB: B:1-235 UniProt: 2-236                                                                                                                                                                                                 ------------------------------------------------------------------------------------------------------------------------------PUR_PYR_PR_TR---------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ecc B   1 CGIVGIAGVMPVNQSIYDALTVLQHRGQDAAGIITIDANNCFRLRKANGLVSDVFEARHMQRLQGNMGIGHVRYPTAGSSSASEAQPFYVNSPYGITLAHNGNLTNAHELRKKLFEEKRRHINTTSDSEILLNIFASELDNFRHYPLEADNIFAAIAATNRLIRGAYACVAMIIGHGMVAFRDPNGIRPLVLGKRDIDENRTEYMVASESVALDTLGFDFLRDVAPGEAIYITEEGQLFTRQCADNPVSNPCLFEYVYFARPDSFIDKISVYSARVNMGTKLGEKIAREWEDLDIDVVIPIPETSCDIALEIARILGKPYRQGFVKNRYVGRTFIMPGQQLRRKSVRRKLNANRAEFRDKNVLLVDDSIVRGTTSEQIIEMAREAGAKKVYLASAAPEIRFPNVYGIDMPSATELIAHGREVDEIRQIIGADGLIFQDLNDLIDAVRAENPDIQQFECSVFNGVYVTKDVDQGYLDFLDTLRNDDAKAVQRQ 492
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490

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(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.2020, no name defined] (117)

Escherichia coli. Organism_taxid: 562. (5)

1a	1eccA02	A:276-326,A:349-400,A:412-445
1b	1eccB02	B:276-326,B:349-400,B:412-445

Architecture: 4-Layer Sandwich (459)

Topology: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 (128)

Homologous Superfamily: Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 (124)

Escherichia coli. Organism_taxid: 562. (21)

2a	1eccA01	A:1-275,A:401-411,A:446-492
2b	1eccB01	B:1-275,B:401-411,B:446-492

(no "Pfam Domain" information available for 1ECC)

Asymmetric Unit(hide GO term definitions)

Chain A,B (PUR1_SHIFL | P0AG17)

molecular function
	GO:0004044	amidophosphoribosyltransferase activity	Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H(2)O.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
	GO:0016757	transferase activity, transferring glycosyl groups	Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
biological process
	GO:0006189	'de novo' IMP biosynthetic process	The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.
	GO:0006541	glutamine metabolic process	The chemical reactions and pathways involving glutamine, 2-amino-4-carbamoylbutanoic acid.
	GO:0009116	nucleoside metabolic process	The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).
	GO:0009113	purine nucleobase biosynthetic process	The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.
	GO:0006164	purine nucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.

Chain A,B (PUR1_ECOLI | P0AG16)

molecular function
	GO:0004044	amidophosphoribosyltransferase activity	Catalysis of the reaction: 5-phospho-beta-D-ribosylamine + L-glutamate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + L-glutamine + H(2)O.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
	GO:0016757	transferase activity, transferring glycosyl groups	Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
biological process
	GO:0006189	'de novo' IMP biosynthetic process	The chemical reactions and pathways resulting in the formation of IMP, inosine monophosphate, by the stepwise assembly of a purine ring on ribose 5-phosphate.
	GO:0006541	glutamine metabolic process	The chemical reactions and pathways involving glutamine, 2-amino-4-carbamoylbutanoic acid.
	GO:0009116	nucleoside metabolic process	The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).
	GO:0009113	purine nucleobase biosynthetic process	The chemical reactions and pathways resulting in the formation of purine nucleobases, one of the two classes of nitrogen-containing ring compounds found in DNA and RNA, which include adenine and guanine.
	GO:0006164	purine nucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
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.

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	1ecc
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	2.4.2.14
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	PUR1_ECOLI \| P0AG16	:	1ecb 1ecf 1ecg 1ecj
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(no "Related Entries Specified in the PDB File" available for 1ECC)

Description

Compounds

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Ligands, Modified Residues, Ions (3, 9)

Sites (13, 13)

SS Bonds (0, 0)

Cis Peptide Bonds (8, 8)

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