RT Journal Article
SR Electronic
T1 Heliorhodopsins are absent in diderm (Gram-negative) bacteria: Some thoughts and possible implications for activity
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 356287
DO 10.1101/356287
A1 José Flores-Uribe
A1 Gur Hevroni
A1 Rohit Ghai
A1 Alina Pushkarev
A1 Keiichi Inoue
A1 Hideki Kandori
A1 Oded Béjà
YR 2018
UL http://biorxiv.org/content/early/2018/06/26/356287.abstract
AB Microbial heliorhodopsins are a new type of rhodopsins with an opposite membrane topology compared to type-1 and −2 rhodopsins, currently believed to engage in light sensing. We determined their presence/absence is monoderms and diderms representatives from the Tara Oceans and freshwater 25 lakes metagenomes. Heliorhodopsins were absent in diderms, confirming our previous observations in cultured Proteobacteria. Based on these observations, we speculate on the putative role of heliorhodopsins in light-driven transport of amphiphilic molecules.