1M0T: Yeast Glutathione Synthase

Citation:
Abstract
Glutathione synthase catalyzes the final ATP-dependent step in glutathione biosynthesis, the formation of glutathione from gamma-glutamylcysteine and glycine. We have determined structures of yeast glutathione synthase in two forms: unbound (2.3 A resolution) and bound to its substrate gamma-glutamylcysteine, the ATP analog AMP-PNP, and two magnesium ions (1.8 A resolution). These structures reveal that upon substrate binding, large domain motions convert the enzyme from an open unliganded form to a closed conformation in which protein domains completely surround the substrate in the active site.
PDB ID: 1M0TDownload
MMDB ID: 21433
PDB Deposition Date: 2002/6/14
Updated in MMDB: 2007/10
Experimental Method:
x-ray diffraction
Resolution: 2.3  Å
Source Organism:
Similar Structures:
Biological Unit for 1M0T: dimeric; determined by author and by software (PISA)
Molecular Components in 1M0T
Label Count Molecule
Proteins (2 molecules)
2
Glutathione Synthetase(Gene symbol: GSH2)
Molecule annotation
Chemicals (6 molecules)
1
6
* Click molecule labels to explore molecular sequence information.

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