menaquinone-8

menaquinone-<i>8</i>




Description


Menaquinone (MK) is a membrane-bound quinone predominantly synthesized under anaerobic or microaerobic conditions in Escherichia coli, where it functions as an electron carrier in the anaerobic respiratory chain. Its biosynthetic pathway partially overlaps with that of ubiquinone, with UbiE acting as a shared C-methyltransferase that catalyzes a common methylation step in both quinone biosynthetic routes [356].


Chemical Formula:
C51H72O2
Molecular Weight:
717.129 Daltons
Monoisotopic Mass:
716.5532315554 Daltons
SMILES:
CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCC1(=C(C)C(=O)C2(C=CC=CC(C(=O)1)=2))
InChI:
1S/C51H72O2/c1-38(2)20-13-21-39(3)22-14-23-40(4)24-15-25-41(5)26-16-27-42(6)28-17-29-43(7)30-18-31-44(8)32-19-33-45(9)36-37-47-46(10)50(52)48-34-11-12-35-49(48)51(47)53/h11-12,20,22,24,26,28,30,32,34-36H,13-19,21,23,25,27,29,31,33,37H2,1-10H3/b39-22+,40-24+,41-26+,42-28+,43-30+,44-32+,45-36+
InChIKey:
LXKDFTDVRVLXFY-WQWYCSGDSA-N

Synonyms
  • vitamin K2
  • MK-8
  • menaquinone

Databases
MetaCyc:  CPD-9728
BiGG:  mqn8
ChemSpider:  4525761
ChEBI:  44027
PubChem (CID):  5376507
CAS:  84-81-1
Seed:  cpd15500
MetaNetX:  MNXM509