14gs

From Proteopedia
Jump to navigation Jump to search

GLUTATHIONE S-TRANSFERASE P1-1 APO FORM 1GLUTATHIONE S-TRANSFERASE P1-1 APO FORM 1

Structural highlights

14gs is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.8Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

GSTP1_HUMAN Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles. Regulates negatively CDK5 activity via p25/p35 translocation to prevent neurodegeneration.[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Three-dimensional structures of the apo form of human pi class glutathione transferase have been determined by X-ray crystallography. The structures suggest the enzyme recognizes its substrate, glutathione, by an induced-fit mechanism. Compared to complexed forms of the enzyme, the environment around the catalytic residue, Tyr 7, remains unchanged in the apoenzyme. This observation supports the view that Tyr 7 does not act as a general base in the reaction mechanism. The observed cooperativity of the dimeric enzyme may be due to the movements of a helix that forms one wall of the active site and, in particular, to movements of a tyrosine residue that is located in the subunit interface.

Evidence for an induced-fit mechanism operating in pi class glutathione transferases.,Oakley AJ, Lo Bello M, Ricci G, Federici G, Parker MW Biochemistry. 1998 Jul 14;37(28):9912-7. PMID:9665696[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Sun KH, Chang KH, Clawson S, Ghosh S, Mirzaei H, Regnier F, Shah K. Glutathione-S-transferase P1 is a critical regulator of Cdk5 kinase activity. J Neurochem. 2011 Sep;118(5):902-14. doi: 10.1111/j.1471-4159.2011.07343.x. Epub , 2011 Jul 8. PMID:21668448 doi:10.1111/j.1471-4159.2011.07343.x
  2. Oakley AJ, Lo Bello M, Ricci G, Federici G, Parker MW. Evidence for an induced-fit mechanism operating in pi class glutathione transferases. Biochemistry. 1998 Jul 14;37(28):9912-7. PMID:9665696 doi:10.1021/bi980323w

14gs, resolution 2.80Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA