Cobyric acid synthase; Catalyzes amidations at positions B, D, E, and G on adenosylcobyrinic A,C-diamide. NH(2) groups are provided by glutamine, and one molecule of ATP is hydrogenolyzed for each amidation. Belongs to the CobB/CobQ family. CobQ subfamily.

Cobinamide kinase/cobinamide phosphate guanylyltransferase; Catalyzes ATP-dependent phosphorylation of adenosylcobinamide and addition of GMP to adenosylcobinamide phosphate.

Cob(I)yrinic acid a,c-diamide adenosyltransferase; Required for both de novo synthesis of the corrin ring for the assimilation of exogenous corrinoids. Participates in the adenosylation of a variety of incomplete and complete corrinoids.

Cobalamin biosynthesis transmembrane protein; Converts cobyric acid to cobinamide by the addition of aminopropanol on the F carboxylic group.

Conserved hypothetical protein. Homology to ebA1022 of Azoarcus sp. EbN1 of 86% (gnl|keqq|eba:ebA1022(KEGG)). Has PF01923, Cobalamin adenosyltransferase;IPR002779,DUF80; 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. The EutT enzyme appears to be an adenosyl transferase, converting CNB12 to AdoB12. No signal peptide or TMH present.

HisB protein; Imidazoleglycerol-phosphate dehydratase is the enzyme that catalyzes the seventh step in the biosynthesis of histidine in bacteria, fungi and plants. Similar to sprot|HIS7_RALSO (73%) and to sprot|HI7B_ARATH (54%)and to sprot|HIS7_ECOLI (47%). Pfam: IGPD, Imidazoleglycerol-phosphate dehydratase; Specificity unclear.

HisD protein; Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine.

Imidazole glycerol phosphate synthase subunit; IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisF subunit catalyzes the cyclization activity that produces IGP and AICAR from PRFAR using the ammonia provided by the HisH subunit.

Histidine amidotransferase; IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisH subunit catalyzes the hydrolysis of glutamine to glutamate and ammonia as part of the synthesis of IGP and AICAR. The resulting ammonia molecule is channeled to the active site of HisF.