>sp|Q2RQ23|LHB_RHORT Light-harvesting protein B-870 beta chain OS=Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1) OX=269796 GN=Rru_A2977 PE=1 SV=1 MAEVKQESLSGITEGEAKEFHKIFTSSILVFFGVAAFAHLLVWIWRPWVPGPNGYSALET LTQTLTYLS