>sp|P25996|PYRDB_BACSU Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit OS=Bacillus subtilis GN=pyrD MLEVKLPGLDLKNPIIPASGCFGFGKEFSRFYDLSCLGAIMIKATTKEPRFGNPTPRVAE TGAGMLNAIGLQNPGLDSVLHHELPWLEQFDTPIIANVAGSQVDDYVEVAEHISKAPNVH ALELNISCPNVKTGGIAFGTNPEMAADLTKAVKEVSDVPVYVKLSPNVANITEIALAIEE AGADGLTMINTLIGMRLDLKTGKPILANKTGGLSGPAVKPVAIRMVYEVSQMVNIPIIGM GGVQTAEDALEFLLAGASAVAVGTANFVNPFACPEIIEQLPSVLLQYGYQSIEECIGRSW NHEKQPAHHRA