label: a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol)(in) <=> a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol)(out)
label_lc: a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol)(in) <=> a 1,2-diacyl-sn-glycero-3-phospho-(1'-sn-glycerol)(out)