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Title :   CRYSTAL STRUCTURE OF MUTANT GST A2-2 WITH ENHANCED CATALYTIC EFFICIENCY WITH AZATHIOPRINE

Authors :   W. Zhang, O. Moden, K. Tars, B. Mannervik

Date :   19 Dec 11 (Deposition) - 28 Dec 11 (Release) - 04 Apr 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.10

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

Keywords :   Transferase, Oxidation-Reduction (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   W. Zhang, O. Moden, K. Tars, B. Mannervik
Structure-Based Redesign Of Gst A2-2 For Enhanced Catalytic Efficiency With Azathioprine.
Chem. Biol. V. 19 414 2012
PubMed-ID: 22444596 | Reference-DOI: 10.1016/J.CHEMBIOL.2012.01.021

Molecule 1 - GLUTATHIONE S-TRANSFERASE A2
	Chains	:	A, B, C, D
	EC Number	:	2.5.1.18
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	K-12
	Expression System Taxid	:	83333
	Expression System Variant	:	XL1-BLUE
	Mutation	:	YES
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	GST HA SUBUNIT 2, GST CLASS-ALPHA MEMBER 2, GST-GAMMA, GSTA2-2, GTH2

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (1x)	:			C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 4)

No.	Name	Count	Type	Full Name
1	GSH	4	Ligand/Ion	GLUTATHIONE

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	GSH	2	Ligand/Ion	GLUTATHIONE

Biological Unit 2 (1, 2)

No.	Name	Count	Type	Full Name
1	GSH	2	Ligand/Ion	GLUTATHIONE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TYR A:9 , ARG A:45 , GLN A:54 , VAL A:55 , PRO A:56 , GLN A:67 , THR A:68 , PHE A:220 , HOH A:2016 , HOH A:2052 , HOH A:2179 , HOH A:2180 , ASP B:101 , ARG B:131	BINDING SITE FOR RESIDUE GSH A 230
2	AC2	SOFTWARE	ASP A:101 , ARG A:131 , TYR B:9 , GLN B:54 , VAL B:55 , PRO B:56 , GLN B:67 , THR B:68 , PHE B:220 , HOH B:2047 , HOH B:2110	BINDING SITE FOR RESIDUE GSH B 230
3	AC3	SOFTWARE	TYR C:9 , ARG C:45 , GLN C:54 , VAL C:55 , PRO C:56 , GLN C:67 , THR C:68 , PHE C:220 , HOH C:2012 , HOH C:2118 , ASP D:101 , ARG D:131	BINDING SITE FOR RESIDUE GSH C 230
4	AC4	SOFTWARE	ASP C:101 , ARG C:131 , TYR D:9 , ARG D:45 , GLN D:54 , VAL D:55 , GLN D:67 , THR D:68 , PHE D:220 , HOH D:2042	BINDING SITE FOR RESIDUE GSH D 230

(no "SS Bond" information available for 4ACS)

Asymmetric Unit

No.	Residues
1	Val A:55	-	Pro A:56
2	Val B:55	-	Pro B:56
3	Val C:55	-	Pro C:56
4	Val D:55	-	Pro D:56

Asymmetric Unit (4, 16)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_014495	P	110	S	GSTA2_HUMAN	Polymorphism	2234951	A/B/C/D	S	110	S
2	UniProt	VAR_012205	S	112	T	GSTA2_HUMAN	Polymorphism	2180314	A/B/C/D	S	112	T
3	UniProt	VAR_014496	V	149	A	GSTA2_HUMAN	Polymorphism	2266631	A/B/C/D	V	149	A
4	UniProt	VAR_012206	E	210	A	GSTA2_HUMAN	Polymorphism	6577	A/B/C/D	E	210	A

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (4, 8)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_014495	P	110	S	GSTA2_HUMAN	Polymorphism	2234951	A/B	S	110	S
2	UniProt	VAR_012205	S	112	T	GSTA2_HUMAN	Polymorphism	2180314	A/B	S	112	T
3	UniProt	VAR_014496	V	149	A	GSTA2_HUMAN	Polymorphism	2266631	A/B	V	149	A
4	UniProt	VAR_012206	E	210	A	GSTA2_HUMAN	Polymorphism	6577	A/B	E	210	A

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (4, 8)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_014495	P	110	S	GSTA2_HUMAN	Polymorphism	2234951	C/D	S	110	S
2	UniProt	VAR_012205	S	112	T	GSTA2_HUMAN	Polymorphism	2180314	C/D	S	112	T
3	UniProt	VAR_014496	V	149	A	GSTA2_HUMAN	Polymorphism	2266631	C/D	V	149	A
4	UniProt	VAR_012206	E	210	A	GSTA2_HUMAN	Polymorphism	6577	C/D	E	210	A

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GST_CTER	PS50405	Soluble glutathione S-transferase C-terminal domain profile.	GSTA2_HUMAN	85-207	4	A:85-207 B:85-207 C:85-207 D:85-207

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GST_CTER	PS50405	Soluble glutathione S-transferase C-terminal domain profile.	GSTA2_HUMAN	85-207	2	A:85-207 B:85-207 - -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	GST_CTER	PS50405	Soluble glutathione S-transferase C-terminal domain profile.	GSTA2_HUMAN	85-207	2	- - C:85-207 D:85-207

(no "Exon" information available for 4ACS)

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:219
 aligned with GSTA2_HUMAN | P09210 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:219
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213         
          GSTA2_HUMAN     4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMILLLPFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIFRF 222
               SCOP domains d4acsa1 A:4-80 automated matches                                             d4acsa2 A:81-222 automated matches                                                                                                             SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee......hhhhhhhhhhh....eeee..hhhhhhhhhhh.........eeee..eeeehhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------S-T------------------------------------A------------------------------------------------------------A------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------GST_CTER  PDB: A:85-207 UniProt: 85-207                                                                                    --------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4acs A   4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMIGDLSFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIFRH 222
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213

Chain B from PDB  Type:PROTEIN  Length:217
 aligned with GSTA2_HUMAN | P09210 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:217
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       
          GSTA2_HUMAN     4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMILLLPFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIF 220
               SCOP domains d4acsb1 B:4-80 automated matches                                             d4acsb2 B:81-220 automated matches                                                                                                           SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee......hhhhhhhhhhhh...eeee..hhhhhhhhhhh.........eeee..eeeehhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------S-T------------------------------------A------------------------------------------------------------A---------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------GST_CTER  PDB: B:85-207 UniProt: 85-207                                                                                    ------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4acs B   4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMIGDLSFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIF 220
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213

Chain C from PDB  Type:PROTEIN  Length:219
 aligned with GSTA2_HUMAN | P09210 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:219
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213         
          GSTA2_HUMAN     4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMILLLPFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIFRF 222
               SCOP domains d4acsc1 C:4-80 automated matches                                             d4acsc2 C:81-222 automated matches                                                                                                             SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.....hhhhhhhhhhhh...eeeee.hhhhhhhhhhh.........eeee..eeeehhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------S-T------------------------------------A------------------------------------------------------------A------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------GST_CTER  PDB: C:85-207 UniProt: 85-207                                                                                    --------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4acs C   4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMIGDLSFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIFRH 222
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213

Chain D from PDB  Type:PROTEIN  Length:217
 aligned with GSTA2_HUMAN | P09210 from UniProtKB/Swiss-Prot  Length:222

    Alignment length:217
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       
          GSTA2_HUMAN     4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMILLLPFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIF 220
               SCOP domains d4acsd1 D:4-80 automated matches                                             d4acsd2 D:81-220 automated matches                                                                                                           SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee...hhhhhhhhhhhhhh....eeee..hhhhhhhhhhh.........eeee..eeeehhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------S-T------------------------------------A------------------------------------------------------------A---------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------GST_CTER  PDB: D:85-207 UniProt: 85-207                                                                                    ------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4acs D   4 KPKLHYSNIRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEIDGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMIGDLSFSQPEEQDAKLALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPLLKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIF 220
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213

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 Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: GST C-terminal domain-like (353)

Superfamily: GST C-terminal domain-like (353)

Family: Glutathione S-transferase (GST), C-terminal domain (263)

Protein domain: automated matches (50)

Human (Homo sapiens) [TaxId: 9606] (35)

1a	d4acsa2	A:81-222
1b	d4acsb2	B:81-220
1c	d4acsc2	C:81-222
1d	d4acsd2	D:81-220

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

Fold: Thioredoxin fold (994)

Superfamily: Thioredoxin-like (992)

Family: automated matches (347)

Protein domain: automated matches (347)

Human (Homo sapiens) [TaxId: 9606] (87)

2a	d4acsa1	A:4-80
2b	d4acsb1	B:4-80
2c	d4acsc1	C:4-80
2d	d4acsd1	D:4-80

(no "CATH Domain" information available for 4ACS)

(no "Pfam Domain" information available for 4ACS)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (GSTA2_HUMAN | P09210)

molecular function
	GO:0004364	glutathione transferase activity	Catalysis of the reaction: R-X + glutathione = H-X + R-S-glutathione. R may be an aliphatic, aromatic or heterocyclic group; X may be a sulfate, nitrile or halide group.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	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.
biological process
	GO:0030855	epithelial cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of an epithelial cell, any of the cells making up an epithelium.
	GO:1901687	glutathione derivative biosynthetic process	The chemical reactions and pathways resulting in the formation of glutathione derivative.
	GO:0006749	glutathione metabolic process	The chemical reactions and pathways involving glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins; it has a specific role in the reduction of hydrogen peroxide (H2O2) and oxidized ascorbate, and it participates in the gamma-glutamyl cycle.
	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.
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:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.

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		Val A:55 - Pro A:56	[ RasMol ]
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		Val C:55 - Pro C:56	[ RasMol ]
		Val D:55 - Pro D:56	[ RasMol ]

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	GSTA2_HUMAN \| P09210	:	1ags 2vct 2wju

1ags	ALPHA GLUTATHIONE S-TRANSFERASE 1-2-1 CHIMERA CONSISTING OF RESIDUES 1-87 GST1, RESIDUES 88-116 GST2 AND RESIDUES 89-221 GST1, MUTANT WITH GLY 82 REPLACED BY ARG (G82R) COMPLEXED WITH S-HEXYL GLUTATHIONE (GSH)
2vct	GLUTATHIONE TRANSFERASE A2-2 IN COMPLEX WITH DELTA-4- ANDOSTRENE-3-17-DIONE
2wju	GLUTATHIONE TRANSFERASE A2-2 IN COMPLEX WITH GLUTATHIONE

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 4)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (4, 4)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (4, 16)

PROSITE Motifs (1, 4)

Exons (0, 0)

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SCOP Domains (2, 8)

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Gene Ontology (10, 10)

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