Becker, Erin A A Large and Phylogenetically Diverse Class of Type 1 Opsins Lacking a Canonical Retinal Binding Site. [electronic resource] - PloS one 2016 - e0156543 p. digital Publication Type: Journal Article ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0156543 doi Subjects--Topical Terms: Absorption, RadiationArchaea--metabolismBacteria--metabolismBinding SitesConserved SequenceLightOpsins--metabolismPhylogenyRetinaldehyde--metabolismSignal Transduction