>cd04739 DHOD_like Dihydroorotate dehydrogenase (DHOD) like proteins. 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. This subgroup has the conserved FMN binding site, but lacks some catalytic residues and may therefore be inactive.

Probab=97.86 E-value=0.00084 Score=44.60 Aligned_cols=151 Identities=19% Similarity=0.244 Sum_probs=86.3 Q ss_pred HHHHHHHCCCCEEEEEEEEEECCHH---HHHHCCCCCCEEEEECCC---CC---------CHHHHHHHHHHCC-CEEEEE Q ss_conf 9998641256416856788512033---676404776079997066---42---------1589998677649-825998 Q gi|254780975|r 53 VIRSLRSYSDSVFDCHLMISSIDSH---INIIADAGCDIITFHPES---SP---------HIRRSLRTIHAMG-KKTGVA 116 (224) Q Consensus 53 ~i~~i~~~t~~~~dvHLMv~~P~~~---i~~~~~~g~d~i~~H~E~---~~---------~~~~~i~~i~~~g-~k~Gia 116 (224) T Consensus 90 ~i~~~~~~~~~pvI~Si~g~s~ee~~~~a~~~~~~gad~lElNls~~~~~~~~~~~~~~~~~~~iv~~Vk~~~~~Pv~vK 169 (325) T cd04739 90 LIRRAKRAVSIPVIASLNGVSAGGWVDYARQIEEAGADALELNIYALPTDPDISGAEVEQRYLDILRAVKSAVTIPVAVK 169 (325) T ss_pred HHHHHHHHCCCCEEEEECCCCHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCEEEE T ss_conf 99998753598759871689989999999999764998799965667888554421068899999999986078866995 Q ss_pred EECCC-CHHHHHHHHHH--CCEEEEE------E-------EE--CCCCCCCCCCHHHHHHHHHHHHHHCCCCEEEEECCC Q ss_conf 52333-44789988620--1402899------8-------30--677653322013577899865431386526981589 Q gi|254780975|r 117 INPET-PVAILEDVIDE--IDMILIM------T-------VN--PGFGGQQLIESTIPKIRQAKALIGKRSISLEVDGGV 178 (224) Q Consensus 117 i~p~T-~~~~i~~~l~~--~D~vliM------~-------V~--PG~~Gq~f~~~~l~kI~~l~~~~~~~~~~I~vDGGv 178 (224) T Consensus 170 LsP~~~di~~ia~aa~~~GAdgi~liNT~~~~~id~~~~~~~~~~~lSg~~~~~~alr~v~~~~~---~~~ipIiG~GGI 246 (325) T cd04739 170 LSPFFSALAHMAKQLDAAGADGLVLFNRFYQPDIDLETLEVVPNLLLSSPAEIRLPLRWIAILSG---RVKASLAASGGV 246 (325) T ss_pred CCCCCCHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCEEECCCCCCCCCCCHHHHHHHHHHHC---CCCCCEEEECCC T ss_conf 39983009999999997599889973576656421676415368774575300688999999964---689898888895 Q ss_pred C-HHHHHHHHHCCCCEEEECHHHHCC-CCH Q ss_conf 9-889999996799899974266378-998 Q gi|254780975|r 179 T-SRNIKSLVQAGADLLVVGSSFFNQ-KGE 206 (224) Q Consensus 179 n-~~~i~~l~~~Gad~~V~Gsaif~~-~d~ 206 (224) T Consensus 247 ~s~~Da~e~ilAGAsaVQv~TA~~~~G~~i 276 (325) T cd04739 247 HDAEDVVKYLLAGADVVMTTSALLRHGPDY 276 (325) T ss_pred CCHHHHHHHHHCCCCHHHEEHHHHHHCCHH T ss_conf 989999999980988761432346418379

HHsearch alignment for GI: 254780975 and conserved domain: cd04739