>sp|B4S5H3|QUEF_PROA2 NADPH-dependent 7-cyano-7-deazaguanine reductase OS=Prosthecochloris aestuarii GN=queF MKKELLEVFDNQFPDRDYTIEIVNPEFTSVCPKTGLPDFGTITLRYVPDKVCIELKSLKY YYLEFRNAGIFYENITNTILDHMISALHPRTLTVTTEWKARGGITETVTASYSSADKA