>tr|M9YGL4|M9YGL4_AZOVI 2-keto-4-pentenoate hydratase OS=Azotobacter vinelandii CA6 GN=mhpD MSVTQQTLEQLAAALRGAEANGTAIEPLRGAIGEDNGTAAYAIQRLNVAHAVAAGRRVVG RKIGLTNPKVQRQLGVDQPDFGTLFADMSHGDNEVLSIKRVLQPKIEAEIALILERDLPR ADTTFAELAEATGWVLPALEIVGSRVRDWNIRFVDTVADNASSGCFVLGGPVRRLAGVDL RRAAMRMTRNGEEVSSGSGAECLGHPLNAAVWLARTMAGLGEPLKAGDLILTGALGPMVG VAAGDRFEAEIEGIGQVGVEFGAA