Cobalamin adenosyltransferase This family contains the gene products of PduO and EutT which are both cobalamin adenosyltransferases. PduO is a protein with ATP:cob(I)alamin adenosyltransferase activity. The main role of this protein is the conversion of inactive cobalamins to AdoCbl for 1,2-propanediol degradation [1].The EutT enzyme appears to be an adenosyl transferase, converting CNB12 to AdoB12 [2].

1: Functional genomic, biochemical, and genetic characterization of the Salmonella pduO gene, an ATP:cob(I)alamin adenosyltransferase gene. Johnson CL, Pechonick E, Park SD, Havemann GD, Leal NA, Bobik TA; J Bacteriol 2001;183:1577-1584. PMID:11160088

2: The 17-gene ethanolamine (eut) operon of Salmonella typhimurium encodes five homologues of carboxysome shell proteins. Kofoid E, Rappleye C, Stojiljkovic I, Roth J; J Bacteriol 1999;181:5317-5329. PMID:10464203