HHsearch alignment for GI: 254780676 and conserved domain: TIGR00433
>TIGR00433 bioB biotin synthase; InterPro: IPR002684 Biotin synthase 2.8.1.6 from EC works with flavodoxin, S-adenosylmethionine, and possibly cysteine to catalyze the last step of the biotin biosynthetic pathway. The reaction consists of the introduction of a sulphur atom into dethiobiotin, thus requiring activation of C-H bonds . Biotin (vitamin H) is a prosthetic group in enzymes catalysing carboxylation and transcarboxylation reactions . Biotin synthase from Escherichia coli is a homodimer of 76 kDa, with each polypeptide chain carrying an oxygen-sensitive (4Fe-4S) cluster, probably ligated by three cysteines of a CXXXCXXC box conserved among all known BioB sequences and a fourth still not identified ligand. BioB displays a pyridoxal phosphate-dependent cysteine desulphurase activity, which allows mobilization of the sulphur atom from free cysteine . ; GO: 0004076 biotin synthase activity, 0009102 biotin biosynthetic process.
Probab=99.87 E-value=3e-22 Score=178.66 Aligned_cols=211 Identities=20% Similarity=0.306 Sum_probs=152.3
Q ss_pred CCCCCCCCCCCCCCCCC----C-C-----------CCHH--------------HHHHHHHHHHHH-C---------CCEE
Q ss_conf 52235352234467899----8-8-----------8823--------------579999999970-7---------7518
Q gi|254780676|r 94 AICTRACTFCNVATGKP----Q-P-----------LDPQ--------------EPENISWAVRSM-K---------LSHV 133 (329)
Q Consensus 94 ~~CTR~C~FC~V~~G~P----~-~-----------~D~~--------------EP~rvA~av~~l-~---------Lk~v 133 (329)
T Consensus 40 G~C~EDC~YCsQSs~~~CniPiYPlk~~~~~~~~~~~~~DeCskisssier~k~~l~eA~~a~~~G~PnrGfPlWv~rFC 119 (350)
T TIGR00433 40 GGCPEDCGYCSQSSRSKCNIPIYPLKDTGLPIERLKKVDDECSKISSSIEREKEILEEARAAKAAGAPNRGFPLWVTRFC 119 (350)
T ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCEEECCEE
T ss_conf 85766776788555266886224566741789988767654322221111113789999999970878888530350146
Q ss_pred EEECCCCCCCCCCH--HHHHHHHHHHHHHHCCC--CEEEEECCCCCC--CHHHHHHHHHCCCHHHHHCCC-CCCCCCCCC
Q ss_conf 98505445345325--89999999999853358--689981546234--468999874107023320138-300027563
Q gi|254780676|r 134 VITSVDRDDLDDGG--AQHFAEVISAIRESAPS--TTIEVLTPDFLR--KPHALEKVVSAKPDVFNHNLE-TVASNYLMV 206 (329)
Q Consensus 134 ViTSV~RDDL~DgG--A~hfa~~I~~Ir~~~P~--~~IEvLiPDf~G--~~~al~~v~~A~pdV~nHNiE-TV~rLy~~V 206 (329)
T Consensus 120 lvasGR--~~~~~~~~dref~~~v~~~~~~~~~ee~GL~~C~~--LG~l~~eqa~~LKdAGld~YNHNl~~TS~~~y~~I 195 (350)
T TIGR00433 120 LVASGR--GPKDRESKDREFIEIVEAVVKIVEEEELGLKTCAT--LGLLDPEQAKQLKDAGLDRYNHNLDETSQEYYSKI 195 (350)
T ss_pred EEECCC--CCCCCCCCCCHHHHHHHHHHHHHHHCCCCCHHHHC--CCCCCHHHHHHHHHCCCCCCCCCHHHHHHHHCCCC
T ss_conf 554178--88877742202889999999997520037122320--37768899998886388611167367878766873
Q ss_pred CCCCHHHHHHHHHHHHHHCCCEEEECCCEEEEEEECHHHHHHHHHHHHHC--CCCEEECCHHCC-C-CCCCCCCCC--CC
Q ss_conf 89703589999999999708916701404887642068899999999966--993997502227-8-610078000--23
Q gi|254780676|r 207 RPGARYFHSLRLLQRVKELDPLIFTKSGIMLGLGETRNEILQLMDDLRTA--DVDFLTMGQYLQ-P-TRKHHKVES--FV 280 (329)
Q Consensus 207 Rp~a~Y~rSL~vL~~aK~~~~~i~TKSGlMvGLGEt~eEi~e~l~DLr~~--gvdilTiGQYL~-P-s~~h~pV~r--yv 280 (329)
T Consensus 196 ~sThty~DR~~T~~~~k~aGl~~C--sGGI~GlgEt~~DrI~l~~~L~~L~p~peSvPiN~L~~~~GTP~~E~L~~~~~~ 273 (350)
T TIGR00433 196 ISTHTYDDRVDTVKNAKEAGLKVC--SGGILGLGETWEDRIGLALALANLSPEPESVPINFLVKIEGTPAYEKLADGEVK 273 (350)
T ss_pred EECCCHHHHHHHHHHHHHCCCCCC--CCCEECCCCCHHHHHHHHHHHHCCCCCCCEECCCCEECCCCCCCHHHHCCCCCC
T ss_conf 432307767999999997388724--462345898889999999997527767870111320268888534431588867
Q ss_pred CHHHHHHHHHHHHHCCCCEEECCCCCCCCHHHHHH
Q ss_conf 84699999999997496243404830010318999
Q gi|254780676|r 281 TPQDFKSYETIAYSKGFLMVSASPLTRSSYHAGDD 315 (329)
Q Consensus 281 ~P~eF~~~~~~a~~~Gf~~V~SgPlVRSSY~A~e~ 315 (329)
T Consensus 274 ~L~~~~~Lk~iA~ar-i~mP~~--~iRla--gGR~ 303 (350)
T TIGR00433 274 KLSADDALKTIALAR-IIMPKA--EIRLA--GGRE 303 (350)
T ss_pred CCCHHHHHHHHHHHH-HHCCCC--EEEEE--CCEE
T ss_conf 338899999999988-654311--00100--2514