1A95 - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   XPRTASE FROM E. COLI COMPLEXED WITH MG:CPRPP AND GUANINE

Authors :   S. Vos, R. J. Parry, M. R. Burns, J. De Jersey, J. L. Martin

Date :   16 Apr 98 (Deposition) - 11 Nov 98 (Release) - 24 Nov 10 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Phosphoribosyltransferase, Transferase, Purine Salvage Enzyme, Glycosyltransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Vos, R. J. Parry, M. R. Burns, J. De Jersey, J. L. Martin
Structures Of Free And Complexed Forms Of Escherichia Coli Xanthine-Guanine Phosphoribosyltransferase.
J. Mol. Biol. V. 282 875 1998
PubMed-ID: 9743633 | Reference-DOI: 10.1006/JMBI.1998.2051

Molecule 1 - XANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE
	Atcc	:	ATCC 37145
	Cellular Location	:	CYTOPLASM
	Cell Line	:	HB101
	Chains	:	A, B, C, D
	EC Number	:	2.4.2.22
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Atcc Number	:	87050
	Expression System Cellular Location	:	CYTOPLASM
	Expression System Gene	:	GPT
	Expression System Plasmid	:	PT7-7
	Expression System Strain	:	SPHI606
	Expression System Taxid	:	562
	Gene	:	GPT
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Synonym	:	XPRT

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (4, 8)

No.	Name	Count	Type	Full Name
1	BO3	2	Ligand/Ion	BORIC ACID
2	GUN	2	Ligand/Ion	GUANINE
3	MG	2	Ligand/Ion	MAGNESIUM ION
4	PCP	2	Ligand/Ion	1-ALPHA-PYROPHOSPHORYL-2-ALPHA,3-ALPHA-DIHYDROXY-4-BETA-CYCLOPENTANE-METHANOL-5-PHOSPHATE

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	PCP C:302 , HOH C:533 , HOH C:534	BINDING SITE FOR RESIDUE MG C 307
2	AC2	SOFTWARE	PCP B:301 , HOH B:535 , HOH B:536	BINDING SITE FOR RESIDUE MG B 308
3	AC3	SOFTWARE	SER B:36 , ARG B:37 , GLY B:38 , ARG B:69 , ASP B:88 , ASP B:89 , LEU B:90 , ASP B:92 , THR B:93 , GLY B:94 , GLY B:95 , THR B:96 , GUN B:304 , MG B:308 , HOH B:466 , HOH B:535 , HOH B:536	BINDING SITE FOR RESIDUE PCP B 301
4	AC4	SOFTWARE	ARG C:37 , GLY C:38 , ARG C:69 , ASP C:88 , ASP C:89 , LEU C:90 , ASP C:92 , THR C:93 , GLY C:94 , GLY C:95 , THR C:96 , GUN C:303 , MG C:307 , HOH C:421 , HOH C:453 , HOH C:463 , HOH C:487 , HOH C:533	BINDING SITE FOR RESIDUE PCP C 302
5	AC5	SOFTWARE	ASP C:92 , LYS C:115 , TRP C:134 , ILE C:135 , PCP C:302 , HOH C:424 , HOH C:487	BINDING SITE FOR RESIDUE GUN C 303
6	AC6	SOFTWARE	LEU B:90 , ASP B:92 , LYS B:115 , TRP B:134 , ILE B:135 , PCP B:301 , HOH B:435	BINDING SITE FOR RESIDUE GUN B 304
7	AC7	SOFTWARE	ASN B:67 , VAL D:35 , SER D:36 , ARG D:37 , GLY D:38 , ASP D:88 , HOH D:422	BINDING SITE FOR RESIDUE BO3 D 305
8	AC8	SOFTWARE	VAL A:35 , SER A:36 , ARG A:37 , GLY A:38 , ASP A:88 , HOH A:471 , ASN C:67	BINDING SITE FOR RESIDUE BO3 A 306

(no "SS Bond" information available for 1A95)

Asymmetric/Biological Unit

No.	Residues
1	Met A:24	-	Pro A:25
2	Ser A:36	-	Arg A:37
3	Met B:24	-	Pro B:25
4	Ser B:36	-	Arg B:37
5	Met C:24	-	Pro C:25
6	Ser C:36	-	Arg C:37
7	Met D:24	-	Pro D:25
8	Ser D:36	-	Arg D:37

(no "SAP(SNP)/Variant" information available for 1A95)

Asymmetric/Biological Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PUR_PYR_PR_TRANSFER	PS00103	Purine/pyrimidine phosphoribosyl transferases signature.	XGPT_ECOLI	84-96	4	A:84-96 B:84-96 C:84-96 D:84-96

(no "Exon" information available for 1A95)

Asymmetric/Biological 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
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Chain A from PDB  Type:PROTEIN  Length:145
 aligned with XGPT_ECOLI | P0A9M5 from UniProtKB/Swiss-Prot  Length:152

    Alignment length:148
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142        
           XGPT_ECOLI     3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPIS 150
               SCOP domains d1a95a_ A: Xanthine-guanine PRTase (XPRTase)                                                                                                         SCOP domains
               CATH domains 1a95A00 A:3-150  [code=3.40.50.2020, no name defined]                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee..hhhhhhhhhhhhhhh..hhh..eeeeee.hhhhhhhhhhhhh....eeeeeeee.---....eeeee........eeeee......hhhhhhhhh....eeee.eee...hhh.....eee....eee.hhh.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------PUR_PYR_PR_TR------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1a95 A   3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSY---NQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPIS 150
                                    12        22        32        42        52        62|   |   72        82        92       102       112       122       132       142        
                                                                                       63  67

Chain B from PDB  Type:PROTEIN  Length:150
 aligned with XGPT_ECOLI | P0A9M5 from UniProtKB/Swiss-Prot  Length:152

    Alignment length:150
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152
           XGPT_ECOLI     3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISGR 152
               SCOP domains d1a95b_ B: Xanthine-guanine PRTase (XPRTase)                                                                                                           SCOP domains
               CATH domains 1a95B00 B:3-152  [code=3.40.50.2020, no name defined]                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eee..hhhhhhhhhhhhhh........eeeeee.hhhhhhhhhhhhh....eeeeeee..........eeee........eeeee......hhhhhhhhh....eeee.eeehhhhhh.....eee....eee.hhh............ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------PUR_PYR_PR_TR-------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1a95 B   3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISGR 152
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152

Chain C from PDB  Type:PROTEIN  Length:150
 aligned with XGPT_ECOLI | P0A9M5 from UniProtKB/Swiss-Prot  Length:152

    Alignment length:150
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152
           XGPT_ECOLI     3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISGR 152
               SCOP domains d1a95c_ C: Xanthine-guanine PRTase (XPRTase)                                                                                                           SCOP domains
               CATH domains 1a95C00 C:3-152  [code=3.40.50.2020, no name defined]                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eee..hhhhhhhhhhhh..........eeeeee.hhhhhhhhhhhhh....eeeeeeeeeee..eeeeeeee........eeeee......hhhhhhhhh....eeee.eee..hhh......eee....eee.hhh............ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------PUR_PYR_PR_TR-------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1a95 C   3 EKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISGR 152
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152

Chain D from PDB  Type:PROTEIN  Length:145
 aligned with XGPT_ECOLI | P0A9M5 from UniProtKB/Swiss-Prot  Length:152

    Alignment length:150
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151
           XGPT_ECOLI     2 SEKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSYDHDNQRELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISG 151
               SCOP domains d1a95d_ D: Xanthine-guanine PRTase (XPRTase)                                                                                                           SCOP domains
               CATH domains 1a95D00 D:2-151  [code=3.40.50.2020, no name defined]                                                                                                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eee..hhhhhhhhhhhhhh........eeeeee.hhhhhhhhhhhhh....eeeeeeeee-----.eeeeee........eeeee......hhhhhhhhh....eeee.eee...........eee....eee.hhh........... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------PUR_PYR_PR_TR------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1a95 D   2 SEKYIVTWDMLQIHARKLASRLMPSEQWKGIIAVSRGGLVPGALLARELGIRHVDTVCISSY-----RELKVLKRAEGDGEGFIVIDDLVDTGGTAVAIREMYPKAHFVTIFAKPAGRPLVDDYVVDIPQDTWIEQPWDMGVVFVPPISG 151
                                    11        21        31        41        51        61 |     |71        81        91       101       111       121       131       141       151
                                                                                        63    69

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
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	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/Biological Unit

Classes(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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Class: Alpha and beta proteins (a/b) (23833)

Fold: PRTase-like (145)

Superfamily: PRTase-like (145)

Family: Phosphoribosyltransferases (PRTases) (100)

Protein domain: Xanthine-guanine PRTase (XPRTase) (6)

Escherichia coli [TaxId: 562] (5)

1a	d1a95a_	A:
1b	d1a95b_	B:
1c	d1a95c_	C:
1d	d1a95d_	D:

Asymmetric/Biological 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. Cell_line: hb101. (2)

1a	1a95B00	B:3-152
1b	1a95C00	C:3-152
1c	1a95A00	A:3-150
1d	1a95D00	D:2-151

(no "Pfam Domain" information available for 1A95)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B,C,D (XGPT_ECOLI | P0A9M5)

molecular function
	GO:0004422	hypoxanthine phosphoribosyltransferase activity	Catalysis of the reaction: IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate.
	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).
	GO:0000310	xanthine phosphoribosyltransferase activity	Catalysis of the reaction: 5-phospho-alpha-D-ribose 1-diphosphate + xanthine = (9-D-ribosylxanthine)-5'-phosphate + diphosphate.
biological process
	GO:0032263	GMP salvage	Any process which produces guanosine monophosphate from derivatives of it, without de novo synthesis.
	GO:0032264	IMP salvage	Any process which produces inosine monophosphate from derivatives of it, without de novo synthesis.
	GO:0032265	XMP salvage	Any process which produces xanthosine monophosphate from derivatives of it, without de novo synthesis.
	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:0006166	purine ribonucleoside salvage	Any process which produces a purine nucleoside from derivatives of it, without de novo synthesis.
cellular component
	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:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
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		Ser A:36 - Arg A:37	[ RasMol ]
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		Ser C:36 - Arg C:37	[ RasMol ]
		Ser D:36 - Arg D:37	[ RasMol ]

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	1a95
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	XGPT_ECOLI \| P0A9M5	:	1a96 1a97 1a98 1nul

(no "Related Entries Specified in the PDB File" available for 1A95)

Description

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Ligands, Modified Residues, Ions (4, 8)

Sites (8, 8)

SS Bonds (0, 0)

Cis Peptide Bonds (8, 8)

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