1ml6
From Proteopedia
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|PDB= 1ml6 |SIZE=350|CAPTION= <scene name='initialview01'>1ml6</scene>, resolution 1.90Å | |PDB= 1ml6 |SIZE=350|CAPTION= <scene name='initialview01'>1ml6</scene>, resolution 1.90Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=GBX:2-AMINO-4-[1-(CARBOXYMETHYL-CARBAMOYL)-2-(9-HYDROXY-7,8-DIOXO-7,8,9,10-TETRAHYDRO-BENZO[DEF]CHRYSEN-10-YLSULFANYL)-ETHYLCARBAMOYL]-BUTYRIC+ACID'>GBX</scene> | + | |LIGAND= <scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</scene>, <scene name='pdbligand=GBX:2-AMINO-4-[1-(CARBOXYMETHYL-CARBAMOYL)-2-(9-HYDROXY-7,8-DIOXO-7,8,9,10-TETRAHYDRO-BENZO[DEF]CHRYSEN-10-YLSULFANYL)-ETHYLCARBAMOYL]-BUTYRIC+ACID'>GBX</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Glutathione_transferase Glutathione transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.18 2.5.1.18] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glutathione_transferase Glutathione transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.18 2.5.1.18] </span> |
|GENE= GST ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]) | |GENE= GST ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1f3a|1F3A]], [[1f3b|1F3B]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ml6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ml6 OCA], [http://www.ebi.ac.uk/pdbsum/1ml6 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ml6 RCSB]</span> | ||
}} | }} | ||
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[[Category: Wargo, H L.]] | [[Category: Wargo, H L.]] | ||
[[Category: Xiao, B.]] | [[Category: Xiao, B.]] | ||
| - | [[Category: GBX]] | ||
| - | [[Category: IPA]] | ||
[[Category: crystal structure]] | [[Category: crystal structure]] | ||
[[Category: gst detoxification]] | [[Category: gst detoxification]] | ||
[[Category: mgsta2-2]] | [[Category: mgsta2-2]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:17:34 2008'' |
Revision as of 19:17, 30 March 2008
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| , resolution 1.90Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Gene: | GST (Mus musculus) | ||||||
| Activity: | Glutathione transferase, with EC number 2.5.1.18 | ||||||
| Related: | 1F3A, 1F3B
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of mGSTA2-2 in Complex with the Glutathione Conjugate of Benzo[a]pyrene-7(R),8(S)-Diol-9(S),10(R)-Epoxide
Overview
Murine class alpha glutathione S-transferase subunit types A2 (mGSTA2-2) and A1 (mGSTA1-1) have high catalytic efficiency for glutathione (GSH) conjugation of the ultimate carcinogenic metabolite of benzo[a]pyrene, (+)-anti-7,8-dihydroxy-9,10-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene, [(+)-anti-BPDE]. Only 10 residues differ between the sequences of mGSTA1-1 and 2-2. However, the catalytic efficiency of mGSTA1-1 for GSH conjugation of (+)-anti-BPDE is >3-fold higher as compared with mGSTA2-2. The crystal structure of mGSTA1-1 in complex with the GSH conjugate of (+)-anti-7,8-dihydroxy-9,10-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene (GSBpd) reveals that R216 and I221 in the last helix play important roles in catalysis [Gu, Y., Singh, S. V., and Ji, X. (2000) Biochemistry 39, 12552-12557]. The crystal structure of mGSTA2-2 in complex with GSBpd has been determined, which reveals a different binding mode of GSBpd. Comparison of the two structures suggests that residues 207 and 221 are responsible for the different binding mode of GSBpd and therefore contribute to the distinct catalytic efficiency of the two isozymes.
About this Structure
1ML6 is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
Residues 207, 216, and 221 and the catalytic activity of mGSTA1-1 and mGSTA2-2 toward benzo[a]pyrene-(7R,8S)-diol-(9S,10R)-epoxide., Gu Y, Xiao B, Wargo HL, Bucher MH, Singh SV, Ji X, Biochemistry. 2003 Feb 4;42(4):917-21. PMID:12549910
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