Figure 2
From: Uncommon opsin’s retinal isomer is involved in mammalian sperm thermotaxis
Detection of retinal by reversed-phase UPLC-MS/MS: (a) All-trans retinal (retention time 5.7 min). (b) An extract of mouse spermatozoa. (c) An extract of mouse retina. (d) An extract of human spermatozoa.
