A common catalytic mechanism for proteins of the HutI family.
Tyagi, R., Eswaramoorthy, S., Burley, S.K., Raushel, F.M., Swaminathan, S.(2008) Biochemistry 47: 5608-5615
- PubMed: 18442260 
- DOI: 10.1021/bi800180g
- Primary Citation of Related Structures:  
2Q09 - PubMed Abstract: 
Imidazolonepropionase (HutI) (imidazolone-5-propanote hydrolase, EC 3.5.2.7) is a member of the amidohydrolase superfamily and catalyzes the conversion of imidazolone-5-propanoate to N-formimino-L-glutamate in the histidine degradation pathway. We have determined the three-dimensional crystal structures of HutI from Agrobacterium tumefaciens (At-HutI) and an environmental sample from the Sargasso Sea Ocean Going Survey (Es-HutI) bound to the product [ N-formimino-L-glutamate (NIG)] and an inhibitor [3-(2,5-dioxoimidazolidin-4-yl)propionic acid (DIP)], respectively ...