RPSBLAST alignment for GI: 254781167 and conserved domain: cd04740

>gnl|CDD|73402 cd04740, DHOD_1B_like, Dihydroorotate dehydrogenase (DHOD) class 1B FMN-binding domain. DHOD catalyzes the oxidation of (S)-dihydroorotate to orotate. This is the fourth step and the only redox reaction in the de novo biosynthesis of UMP, the precursor of all pyrimidine nucleotides. DHOD requires FMN as co-factor. DHOD divides into class 1 and class 2 based on their amino acid sequences and cellular location. Members of class 1 are cytosolic enzymes and multimers while class 2 enzymes are membrane associated and monomeric. The class 1 enzymes can be further divided into subtypes 1A and 1B which are homodimers and heterotetrameric proteins, respectively.. Length = 296
 Score = 57.4 bits (139), Expect = 5e-09
 Identities = 53/205 (25%), Positives = 91/205 (44%), Gaps = 31/205 (15%)

Query: 44  STQEKPLALQIGGADISKLVEAAKIVEDFGYNEINLNVGCPSARVHEGSFGACLMLNPDI 103
                P+   I G+ + + VE A+ + D G + I LN+ CP+ +    +FG     +P+ 
Sbjct: 86  REFGTPVIASIAGSTVEEFVEVAEKLADAGADAIELNISCPNVKGGGMAFGT----DPEA 141

Query: 104 VGDCIAAMCKALSIPVTVKCRIGVDDQIPAVALRNLVKSIKKSGVNG-----------IW 152
           V + + A+ KA  +PV VK    V D I  +A     ++ +++G +G           I 
Sbjct: 142 VAEIVKAVKKATDVPVIVKLTPNVTD-IVEIA-----RAAEEAGADGLTLINTLKGMAID 195

Query: 153 IHARKAILK----GLSPKDNRKIPNLDYDIVYEIKKENPDLFIGLNGGLEDMSQALK-IL 207
           I  RK IL     GLS      I  +   +VY++ K      IG+ GG+     AL+ ++
Sbjct: 196 IETRKPILGNVTGGLS---GPAIKPIALRMVYQVYKAVEIPIIGV-GGIASGEDALEFLM 251

Query: 208 PSVDGVMIGRAAYKN-SAMLTTVDE 231
                V +G A + +  A    ++ 
Sbjct: 252 AGASAVQVGTANFVDPEAFKEIIEG 276