HHsearch alignment for GI: 255764472 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=98.02  E-value=2.6e-05  Score=59.42  Aligned_cols=187  Identities=19%  Similarity=0.265  Sum_probs=123.2

Q ss_pred             EEEEE-CCCCCCCCCCCC--HHH-----------HHHH-HHHHHHH--------------HHHHHHHHHHHCCC------
Q ss_conf             78741-233244681110--012-----------2137-6410058--------------89998876310133------
Q gi|255764472|r  178 AFLTI-QEGCDKFCTFCV--VPY-----------TRGI-EISRSLS--------------QVVDEARKLIDNGV------  222 (469)
Q Consensus       178 a~ikI-~~GC~~~CsfC~--ip~-----------~RG~-~rSr~~~--------------~Iv~ei~~l~~~G~------  222 (469)
T Consensus        33 ~i~N~KSG~C~EDC~YCsQSs~~~CniPiYPlk~~~~~~~~~~~~~DeCskisssier~k~~l~eA~~a~~~G~PnrGfP  112 (350)
T TIGR00433        33 TIMNIKSGGCPEDCGYCSQSSRSKCNIPIYPLKDTGLPIERLKKVDDECSKISSSIEREKEILEEARAAKAAGAPNRGFP  112 (350)
T ss_pred             EEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCC
T ss_conf             11012218576677678855526688622456674178998876765432222111111378999999997087888853


Q ss_pred             ---CEEEEECCCCCEEEECCCCCCC---CCCCHHHHHHHCC-----CCCCC-CCCCCCCCCCCCCHHHHHHCCCCCCCCC
Q ss_conf             ---1058731454113411344431---0002167886204-----44300-1354421000100036652022111220
Q gi|255764472|r  223 ---CEITLLGQNVNAWRGKGLDGEK---CTFSDLLYSLSEI-----KGLVR-LRYTTSHPRDMSDCLIKAHGDLDVLMPY  290 (469)
Q Consensus       223 ---kEi~L~g~d~~~Y~g~~~~~~~---~~l~~Ll~~l~~i-----~~~~r-iR~~s~~P~~~~~~li~~~~~~~~i~~~  290 (469)
T Consensus       113 lWv~rFClv----as--GR~~~~~~~~dref~~~v~~~~~~~~~ee~GL~~C~~LG~l-----~~eqa~~LKdAG-ld~Y  180 (350)
T TIGR00433       113 LWVTRFCLV----AS--GRGPKDRESKDREFIEIVEAVVKIVEEEELGLKTCATLGLL-----DPEQAKQLKDAG-LDRY  180 (350)
T ss_pred             EEECCEEEE----EC--CCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCHHHHCCCCC-----CHHHHHHHHHCC-CCCC
T ss_conf             035014655----41--78888777422028899999999975200371223203776-----889999888638-8611


Q ss_pred             EEEEEECCCHHHHHHHCCCCCCCHHHHHHHHHHHHCCCCCCCEEEECCCCCCHHHHHHHHHHHHHHH--HHHHCCCHHEE
Q ss_conf             1332111457899873033344114678999874013443200000135220124789886332210--11100200001
Q gi|255764472|r  291 LHLPVQSGSDRILKSMNRRHTAYEYRQIIDRIRSVRPDIAISSDFIVGFPGETDDDFRATMDLVDKI--GYAQAFSFKYS  368 (469)
Q Consensus       291 lhlpiQSgs~~vLk~M~R~~~~e~~~~~i~~~r~~~p~~~i~tdiIvGfPgETeedf~~Tl~~i~~~--~~~~~~vf~yS  368 (469)
T Consensus       181 NH-Nl~~TS~~~y~~I~sThty~DR~~T~~~~k~a--Gl~~CsGGI~Gl-gEt~~DrI~l~~~L~~L~p~peSvPiN~L~  256 (350)
T TIGR00433       181 NH-NLDETSQEYYSKIISTHTYDDRVDTVKNAKEA--GLKVCSGGILGL-GETWEDRIGLALALANLSPEPESVPINFLV  256 (350)
T ss_pred             CC-CHHHHHHHHCCCCEECCCHHHHHHHHHHHHHC--CCCCCCCCEECC-CCCHHHHHHHHHHHHCCCCCCCEECCCCEE
T ss_conf             16-73678787668734323077679999999973--887244623458-988899999999975277678701113202


Q ss_pred             ECCCHHHH-HCCC
Q ss_conf             11201232-1436
Q gi|255764472|r  369 PRLGTPGS-NMLE  380 (469)
Q Consensus       369 ~r~gT~Aa-~m~~  380 (469)
T Consensus       257 ~~~GTP~~E~L~~  269 (350)
T TIGR00433       257 KIEGTPAYEKLAD  269 (350)
T ss_pred             CCCCCCCHHHHCC
T ss_conf             6888853443158