The Enzyme Database

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EC 3.5.1.90     
Accepted name: adenosylcobinamide hydrolase
Reaction: adenosylcobinamide + H2O = adenosylcobyric acid + (R)-1-aminopropan-2-ol
For diagram of cobinamide salvage pathways, click here
Other name(s): CbiZ; AdoCbi amidohydrolase
Systematic name: adenosylcobinamide amidohydrolase
Comments: Involved in the salvage pathway of cobinamide in archaea. Archaea convert adenosylcobinamide (AdoCbi) into adenosylcobinamide phosphate (AdoCbi-P) in two steps. First, the amidohydrolase activity of CbiZ cleaves off the aminopropanol moiety of AdoCbi yielding adenosylcobyric acid (AdoCby); second, AdoCby is converted into AdoCbi-P by the action of EC 6.3.1.10, adenosylcobinamide-phosphate synthase (CbiB).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 905988-16-1
References:
1.  Woodson, J.D. and Escalante-Semerena, J.C. CbiZ, an amidohydrolase enzyme required for salvaging the coenzyme B12 precursor cobinamide in archaea. Proc. Natl. Acad. Sci. USA 101 (2004) 3591–3596. [PMID: 14990804]
[EC 3.5.1.90 created 2004]
 
 


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