Enzymes
| UniProtKB help_outline | 2 proteins |
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- Name help_outline glutathione Identifier CHEBI:57925 Charge -1 Formula C10H16N3O6S InChIKeyhelp_outline RWSXRVCMGQZWBV-WDSKDSINSA-M SMILEShelp_outline [NH3+][C@@H](CCC(=O)N[C@@H](CS)C(=O)NCC(=O)[O-])C(=O)[O-] 2D coordinates Mol file for the small molecule Search links Involved in 104 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 5-oxo-L-proline Identifier CHEBI:58402 (Beilstein: 4783230) help_outline Charge -1 Formula C5H6NO3 InChIKeyhelp_outline ODHCTXKNWHHXJC-VKHMYHEASA-M SMILEShelp_outline [O-]C(=O)[C@@H]1CCC(=O)N1 2D coordinates Mol file for the small molecule Search links Involved in 6 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline L-cysteinylglycine Identifier CHEBI:61694 Charge 0 Formula C5H10N2O3S InChIKeyhelp_outline ZUKPVRWZDMRIEO-VKHMYHEASA-N SMILEShelp_outline [NH3+][C@@H](CS)C(=O)NCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:47724 | RHEA:47725 | RHEA:47726 | RHEA:47727 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Mammalian proapoptotic factor ChaC1 and its homologues function as gamma-glutamyl cyclotransferases acting specifically on glutathione.
Kumar A., Tikoo S., Maity S., Sengupta S., Sengupta S., Kaur A., Bachhawat A.K.
ChaC1 is a mammalian proapoptic protein of unknown function induced during endoplasmic reticulum stress. We show using in vivo studies and novel in vitro assays that the ChaC family of proteins function as γ-glutamyl cyclotransferases acting specifically to degrade glutathione but not other γ-glut ... >> More
ChaC1 is a mammalian proapoptic protein of unknown function induced during endoplasmic reticulum stress. We show using in vivo studies and novel in vitro assays that the ChaC family of proteins function as γ-glutamyl cyclotransferases acting specifically to degrade glutathione but not other γ-glutamyl peptides. The overexpression of these proteins (but not the catalytically dead E>Q mutants) led to glutathione depletion and enhanced apoptosis in yeast. The ChaC family is conversed across all phyla and represents a new pathway for glutathione degradation in living cells, and the first cytosolic pathway for glutathione degradation in mammalian cells. << Less