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Chemical Compound Review:

AC1NRC6V 3-methyl-2- [(2E,6E,10E,14E,18E,22E,26Z...

Synonyms: MQ9

Breton, J., Morishita, T. et al., Brito, F. et al.

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Disease relevance of Menaquinone-9

Up to now a comparable protocol was lacking for the RC of Rhodopseudomonas viridis despite the fact that its Q(A) site, which contains 2-methyl-3-nonaprenyl-1,4-naphthoquinone (menaquinone-9), has provided the best x-ray structure available [1].
Isolation and identification of menaquinone-9 from purified nitrate reductase of Escherichia coli [2].
Precise molecular weights were determined by mass spectrometry for Lactococcus lactis ssp. cremoris YIT 2011 and Leuconostoc lactis YIT 3001 and identified as menaquinone-8 and -9 for the former and menaquinone-9 and -10 for the latter [3].

References

Efficient exchange of the primary quinone acceptor Q(A)in isolated reaction centers of Rhodopseudomonas viridis. Breton, J. Proc. Natl. Acad. Sci. U.S.A. (1997) [Pubmed]
Isolation and identification of menaquinone-9 from purified nitrate reductase of Escherichia coli. Brito, F., DeMoss, J.A., Dubourdieu, M. J. Bacteriol. (1995) [Pubmed]
Production of menaquinones by lactic acid bacteria. Morishita, T., Tamura, N., Makino, T., Kudo, S. J. Dairy Sci. (1999) [Pubmed]

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