>sp|B3QKK5|QUEC_RHOPT 7-cyano-7-deazaguanine synthase OS=Rhodopseudomonas palustris GN=queC MTDHSSDKTALVLFSGGQDSATCLAWALARFARVETIGFDYGQRHLIELECRARLLDGFR AISDDWAAKLGDNHTLTIPTLAEISDTALTRDVAIAMGADGLPNTFVPGRNLIFLNFAAA LAYRRGITDIVGGMCETDYSGYPDCRNDTIQALQTALSLGMARDITLHTPLMWRDKAATW QLAQDLGGDALVDLIREDSHTCYLGERGARHDWGYGCGECPACRLRSKGWIEYASGI