>4B9O_1|Chain A|PHOTOACTIVE YELLOW PROTEIN|HALORHODOSPIRA HALOPHILA (1053) MEHVAFGSEDIENTLAKMDDGQLDGLAFGAIQLDGDGNILQYNAAEGDITGRDPKQVIGKNFFKDVAPCTDSPEFYGKFKEGVASGNLNTMFEYTFDYQMTPTKVKVHMKKALSGDSYWVFVKRV