ACT_SITE 44; /note="Charge relay system"; /evidence="ECO:0000305|PubMed:10206957"; ACT_SITE 83; /note="Charge relay system"; /evidence="ECO:0000305|PubMed:10206957"; ACT_SITE 109; /note="Charge relay system"; /evidence="ECO:0000305|PubMed:10206957"