The identification and structural characterization of C7orf24 as gamma-glutamyl cyclotransferase. An essential enzyme in the gamma-glutamyl cycle
Oakley, A.J., Yamada, T., Liu, D., Coggan, M., Clark, A.G., Board, P.G.(2008) J Biol Chem 283: 22031-22042
- PubMed: 18515354 
- DOI: 10.1074/jbc.M803623200
- Primary Citation of Related Structures:  
2PN7, 2RBH, 3CRY - PubMed Abstract: 
The hypothetical protein C7orf24 has been implicated as a cancer marker with a potential role in cell proliferation. We have identified C7orf24 as gamma-glutamyl cyclotransferase (GGCT) that catalyzes the formation of 5-oxoproline (pyroglutamic acid) from gamma-glutamyl dipeptides and potentially plays a significant role in glutathione homeostasis ...