>4r38_D mol:protein length:140 Blue-light-activated histidine kinase 2GEFKGLMAVGLAEHDKEAWGRLPFSLTIADISQDDEPLIYVNRAFEQMTGYSRSSVVGRNCRFLQGEKTDPGAVERLAKAIRNCEEVEETIYNYRADGEGFWNHLLMGPLEDQDEKCRYFVGIQVDMGQSESPDRATELD