HHsearch alignment for GI: 254781012 and conserved domain: TIGR00857

>TIGR00857 pyrC_multi dihydroorotase, multifunctional complex type; InterPro: IPR004722 Dihydroorotase belongs to MEROPS peptidase family M38 (clan MJ), where it is classified as a non-peptidase homologue. DHOase catalyses the third step in the de novo biosynthesis of pyrimidine, the conversion of ureidosuccinic acid (N-carbamoyl-L-aspartate) into dihydroorotate. Dihydroorotase binds a zinc ion which is required for its catalytic activity . In bacteria, DHOase is a dimer of identical chains of about 400 amino-acid residues (gene pyrC). In higher eukaryotes, DHOase is part of a large multi-functional protein known as 'rudimentary' in Drosophila melanogaster and CAD in mammals and which catalyzes the first three steps of pyrimidine biosynthesis . The DHOase domain is located in the central part of this polyprotein. In yeasts, DHOase is encoded by a monofunctional protein (gene URA4). However, a defective DHOase domain is found in a multifunctional protein (gene URA2) that catalyzes the first two steps of pyrimidine biosynthesis. The comparison of DHOase sequences from various sources shows that there are two highly conserved regions. The first located in the N-terminal extremity contains two histidine residues suggested to be involved in binding the zinc ion. The second is found in the C-terminal part. Members of this family of proteins are predicted to adopt a TIM barrel fold . Dihydroorotase 'multifunctional complex type' 3.5.2.3 from EC, in contrast to the homodimeric type of dihydroorotase found in Escherichia coli, tends to appear in a large multifunctional complex with aspartate transcarbamoylase. Homologous domains appear in multifunctional proteins of higher eukaryotes. In some species, including Pseudomonas putida and Pseudomonas aeruginosa, this protein is inactive but is required as a non-catalytic subunit of aspartate transcarbamoylase (ATCase). In these species, a second, active dihydroorotase is also present..
Probab=100.00  E-value=0  Score=631.39  Aligned_cols=337  Identities=20%  Similarity=0.228  Sum_probs=284.0

Q ss_pred             EEEECCCCEEEEECCC------HHHHHHHHHHHCCCCEEEEECCCCCCCCCCHHHHHHHHHHHHHHC-------------
Q ss_conf             5586466423750881------788987498741887399983895148989899999999999838-------------
Q gi|254781012|r    3 KISLRVPDDWHLHLRD------GEILKTVLRDTAKNFRRALVMPNIDPPIITVDDACAYRQRILNAL-------------   63 (349)
Q Consensus         3 ~l~lp~~~D~HvH~Re------g~~~~~t~aa~aGG~TtV~~MPNT~Ppi~t~e~~~~~~~r~~~~~-------------   63 (349)
T Consensus        41 ~lvlPG~iD~HVHlRdpg~eyKEdi~~G~~AA~~GG~t~V~dMPNT~PP~d~~~~~~~~~~~~~~~~GvnahhqPPGdPq  120 (459)
T TIGR00857        41 LLVLPGLIDLHVHLRDPGEEYKEDIESGSKAAIHGGFTTVADMPNTKPPIDTPETLERKLQRLKKKSGVNAHHQPPGDPQ  120 (459)
T ss_pred             CEECCCCEEEEEECCCCCCCCHHHHHHHHHHHHCCCEEEEEECCCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCCCCCC
T ss_conf             47806004777621889874113188999997558715899857431377898999999997410146423468555875


Q ss_pred             ----CCCCEEEEEEEEEECCCCCHHH---HHHHHHCCCEEEHHHCCCCCEECCCCCCCHHHHHHHHHHHHHHCCCCEECC
Q ss_conf             ----6884699501345278999889---987440687210221045510025654100688999999998739822202
Q gi|254781012|r   64 ----PPEYDFSPLMTIYLTETTDPDD---VEKGFTSQLVQAIKLYFAGSTTNSHHGIRNIDRVMPVLERMETIGMPLCIH  136 (349)
Q Consensus        64 ----~~~~~~~~~~~~~lt~~~~~~~---~~~~~~~~~~~~~k~~~~~~~~~~~~~v~~~~~~~~~le~~~~~~~~i~~H  136 (349)
T Consensus       121 aenrPdsa~vd~~~~~~vt~~~~gk~~~~~~~~~~~~~~~~~----G~~F~~d~~~~~~~~~~~~~le~a~~~Gv~~~~H  196 (459)
T TIGR00857       121 AENRPDSALVDVLLYAGVTKGNKGKEIVRLTEAYELKEAGAV----GEVFIDDGSEVLDILSMRKALEYAAELGVLIVLH  196 (459)
T ss_pred             CCCCCCCCEEEEEEEEEEECCCCCCCEEEECCHHHHHCCCEE----EEEEEECCHHHHHHHHHHHHHHHHHHCCCEEEEE
T ss_conf             355888525545786457044455510111250565106436----8987645523420345678999885579369982


Q ss_pred             CCCCCCCCC----------------CHHHHHHHHHHHHHHHHHHHCCCE-----EEEECCCHHHHHHHHHHCC------C
Q ss_conf             575555543----------------001467654578999996206953-----9970578589999987057------3
Q gi|254781012|r  137 GEILNQDID----------------IFDRELMFIDKILDPLRNKLPNLK-----IILEHITTSNGIDYVNNAT------N  189 (349)
Q Consensus       137 ~E~~~~~~~----------------~~~~E~~~~~~~l~~~~a~~~~~~-----iHi~HiST~~sv~lir~ak------~  189 (349)
T Consensus       197 aE~~~l~~~~~~~~~~~~~~~~gl~~rp~~aE~~~va~~~~l~~~~g~~nkkPhvHicHiSTk~~~~~i~~~k~~~~Gi~  276 (459)
T TIGR00857       197 AEDPDLIAGGLVEYEGRSAAALGLKARPPEAEEVAVARLLELAKHAGCPNKKPHVHICHISTKESLELIKKAKKQLKGIK  276 (459)
T ss_pred             CCCHHHHCCCCCCCCCCCCHHHCCCCCCCHHHHHHHHHHHHHHHHCCCCCCCCCEEEEEEECCHHHHHHHHHHHHCCCCE
T ss_conf             58867732674212233247536788820337999999999998618888888436998650015889998764004623


Q ss_pred             CCEEEECCCCCCCHHHHHC------CCCCCCEEECCCCCCHHHHHHHHHHHHCCCCEEEEECCCCCCCHHHHHC--CCCC
Q ss_conf             3202302310039788613------7888311321346999999999999976994189713888653133215--4577
Q gi|254781012|r  190 IAGSITVHHLIINRNAIFH------DGLNPHYYCLPIPKREKHRLSLRKAALSGNPRFFLGTDSAPHWDSSKES--SCGC  261 (349)
Q Consensus       190 vtaEVTPHHL~lt~~d~~~------~~~~~~~k~nPPlR~~~dr~aL~~ai~~G~i~d~I~TDHAPH~~eeK~~--~~~~  261 (349)
T Consensus       277 ~T~EVtPHHLlL~~~~~~~GlPPhtP~~~~~~kvNPPLR~~eDr~aL~~~~~~G~I-D~iAsDHAPH~~eEK~~~~~~ap  355 (459)
T TIGR00857       277 ITAEVTPHHLLLSEEDVARGLPPHTPPLDTNLKVNPPLREEEDRLALIEGLKDGII-DIIASDHAPHTLEEKLKEVAAAP  355 (459)
T ss_pred             EEEEECCCCCCCCHHHHHCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHCCCC-CEEECCCCCCCHHHHHCCHHHCC
T ss_conf             89984673001786888268878888888850137798885359999776634720-17855786421265502155467


Q ss_pred             CCCCCHHHHHHHHHHHHHCC--CCHHHHHHHHHHCCHHHCCCCC-------CCCEEEEEECCCCEEECHHHCCCCCCEEE
Q ss_conf             54454367999999997206--9999999998243178818898-------88528999479717847112267777146
Q gi|254781012|r  262 AGIYTARNALNCLAQIFEEE--NKLENLESFVSINGATWYGIPV-------NTRKISLKRREQPIIFDEKITTSTGSITI  332 (349)
Q Consensus       262 ~g~~~~~~~~~~~~~~~~~~--~~L~~l~~~~s~npa~~~gl~~-------~~~~i~l~d~~~~~~v~~~~~~sk~~~tp  332 (349)
T Consensus       356 pG~pgle~~~p~~l~~~~kg~lis~~~~~~~~s~nParIfgl~~~G~l~~G~~Ad~tv~Dl~k~~~i~~e~f~sKa~~TP  435 (459)
T TIGR00857       356 PGIPGLETVLPLLLQLLVKGNLISLKDLVRMLSINPARIFGLPDKGTLEEGNPADLTVIDLKKEWTIKAETFYSKAKNTP  435 (459)
T ss_pred             CCCCHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHCCHHHCCCCCCCCCCCCCCCCEEEECCCHHCEEEHHHCCCCCCCCC
T ss_conf             88733888999999997548732689999998526551122798774136797762378741000530101432213775


Q ss_pred             CCCCEEECCEEEE
Q ss_conf             5797698338887
Q gi|254781012|r  333 FNPIFPLYWEVML  345 (349)
Q Consensus       333 F~~g~~l~w~V~~  345 (349)
T Consensus       436 f~-G~~~~g~p~~  447 (459)
T TIGR00857       436 FE-GMSLKGKPIA  447 (459)
T ss_pred             CC-CEEECCEEEE
T ss_conf             66-7446473589