期刊
ENVIRONMENTAL MICROBIOLOGY REPORTS
卷 11, 期 3, 页码 419-424出版社
WILEY
DOI: 10.1111/1758-2229.12730
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资金
- Israel Science Foundation - F.I.R.S.T. (Bikura) Individual grant [545/17]
Microbial heliorhodopsins are a new type of rhodopsins, currently believed to engage in light sensing, with an opposite membrane topology compared to type-1 and type-2 rhodopsins. We determined heliorhodopsins presence/absence is monoderms and diderms representatives from the Tara Oceans and freshwater metagenomes as well as metagenome assembled genome collections. Heliorhodopsins are absent in diderms, confirming our previous observations in cultured Proteobacteria. We do not rule out the possibility that heliorhodopsins serve as light sensors. However, this does not easily explain their absence from diderms. Based on these observations, we speculate on the putative role of heliorhodopsins in light-driven transport of amphiphilic molecules.
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