>4R38_1|Chains A, B, C, D|Blue-light-activated histidine kinase 2|Erythrobacter litoralis HTCC2594 (314225) GEFKGLMAVGLAEHDKEAWGRLPFSLTIADISQDDEPLIYVNRAFEQMTGYSRSSVVGRNCRFLQGEKTDPGAVERLAKAIRNCEEVEETIYNYRADGEGFWNHLLMGPLEDQDEKCRYFVGIQVDMGQSESPDRATELD