48, 49 Although human vitamin K1 (phytomenadione) stores are derived primarily from dietary plant sources, the majority of vitamin K2 (menaquinone) is generated by intestinal bacterial biosynthesis.50 Veillonella, Enterobacteriaceae, Bacteroides, and Prevotella all have been shown to synthesize this ...
Apoptosis/differentiation-inducing effects of vitamin K2 on HL-60 cells: dichotomous nature of vitamin K2 in leukemia cells. We originally reported that vitamin K[SUB2] (VK2) analogs, including menaquinone 4 (MK4) but not vitamin K1, effectively induce apoptosis in various types ... K Miyazaw...
The purified fractions (PQW, K2-30EM, K1-10RM and K1-30RM) were analyzed by sugar composition, HPSEC, methylation and 13C NMR spectroscopy analysis. The results showed that PQW consisted of a linear arabinan with (1 → 5)-linked α-l-arabinofuranosyl units. Fractions K2-30EM, K1-10...
Interaction of Vitamin K1 and Vitamin K2 with Dimyristoylphosphatidylcholine and Their Location in the Membrane. Langmuir 2020, 36, 1062–1073. [CrossRef] 44. Ortiz, A.; Aranda, F.J. The influence of vitamin K1 on the structure and phase behaviour of model membrane systems. Biochim. Biophys...