>sp|O96801|CYB6_SKECO Cytochrome b6 OS=Skeletonema costatum GN=petB MGKVYDWFEERLEVQAIADDISSKYVPPHVNIFYCFGGIVFTCFLVQVATGFAMTFYYRP SVVDAFASVEYIMTSVNFGWLIRSIHRWSASMMVMMLVLHVFRVYLTGGFKKPRELTWVT GVILAVVTVSFGVTGYSLPWDQVGFWACKIVTGVPAAVPIVGPPLVLVLRGGESVGQSTL TRFYSAHTFVLPLAAAVLMLTHFLMIRKQGISGPL