Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-06-17 20:21:11 UTC
Update Date2025-10-07 16:09:42 UTC
Metabolite IDMMDBc0056265
Metabolite Identification
Common Nameprecorrin-6A
Descriptionprecorrin-6A is a cobalt-containing metabolite classified within the porphyrin chemical class. Its chemical structure features a complex arrangement of carbon and nitrogen atoms, which is crucial for its role in the biosynthesis of cobalamin (vitamin B12). The compound is synthesized through a series of enzymatic reactions in the aerobic pathway of cobalamin biosynthesis. Notably, the mechanism involves the protonation of C18 and pro-R hydride transfer from NADPH to C19 of precorrin-6A, highlighting the specificity of the enzyme CobK in these processes (PMID:26616290 ). Furthermore, precorrin-6A serves as an important precursor in the pathway leading to the formation of other cobalt-containing intermediates, such as cobalt-precorrin-6A and -6B, as well as cobalt-precorrin-8, which are essential for the subsequent steps in cobalamin synthesis (PMID:23922391 ). This intricate network of reactions underscores the significance of precorrin-6A in the overall pathway of cobalamin biosynthesis, linking it to essential metabolic functions in organisms.
Structure
Synonyms
ValueSource
Precorrin-6aChEBI
Molecular FormulaC44H47N4O16
Average Mass887.876
Monoisotopic Mass887.302546509
IUPAC Name3-[(1R,4R,10S,14S,18S,19S)-4,13,18-tris(2-carboxyethyl)-3,9,14,19-tetrakis(carboxymethyl)-1,4,10,14,19-pentamethyl-20,21,22,23-tetraazapentacyclo[15.2.1.1^{2,5}.1^{7,10}.1^{12,15}]tricosa-2,5(23),7(22),8,12,15(21),16-heptaen-8-yl]propanoate
Traditional Name3-[(1R,4R,10S,14S,18S,19S)-4,13,18-tris(2-carboxyethyl)-3,9,14,19-tetrakis(carboxymethyl)-1,4,10,14,19-pentamethyl-20,21,22,23-tetraazapentacyclo[15.2.1.1^{2,5}.1^{7,10}.1^{12,15}]tricosa-2,5(23),7(22),8,12,15(21),16-heptaen-8-yl]propanoate
CAS Registry NumberNot Available
SMILES
[H]\C1=C2\N[C@@](C)(C3=C(CC([O-])=O)[C@@](C)(CCC([O-])=O)C(CC4=N[C@@](C)(CC5=C(CCC([O-])=O)[C@](C)(CC([O-])=O)C1=N5)C(CC([O-])=O)=C4CCC([O-])=O)=N3)[C@@](C)(CC(O)=O)[C@]2([H])CCC([O-])=O
InChI Identifier
InChI=1S/C44H54N4O16/c1-40(13-12-34(55)56)25(15-36(59)60)39-44(5)42(3,20-38(63)64)23(8-11-33(53)54)27(48-44)17-30-41(2,19-37(61)62)22(7-10-32(51)52)28(45-30)18-43(4)24(14-35(57)58)21(6-9-31(49)50)26(47-43)16-29(40)46-39/h17,23,48H,6-16,18-20H2,1-5H3,(H,49,50)(H,51,52)(H,53,54)(H,55,56)(H,57,58)(H,59,60)(H,61,62)(H,63,64)/p-7/b27-17-/t23-,40-,41+,42+,43+,44+/m1/s1
InChI KeySOHWQLUTRKYCGZ-YTMGQXKNSA-G