HHsearch alignment for GI: 254781065 and conserved domain: TIGR02666
>TIGR02666 moaA molybdenum cofactor biosynthesis protein A; InterPro: IPR013483 The majority of molybdenum-containing enzymes utilise a molybdenum cofactor (MoCF or Moco) consisting of a Mo atom coordinated via a cisdithiolene moiety to molybdopterin (MPT). MoCF is ubiquitous in nature, and the pathway for MoCF biosynthesis is conserved in all three domains of life. MoCF-containing enzymes function as oxidoreductases in carbon, nitrogen, and sulphur metabolism , . In Escherichia coli, biosynthesis of MoCF is a three stage process. It begins with the MoaA and MoaC conversion of GTP to the meta-stable pterin intermediate precursor Z. The second stage involves MPT synthase (MoaD and MoaE), which coverts precursor Z to MPT; MoeB is involved in the recycling of MPT synthase. The final step in MoCF synthesis is the attachment of mononuclear Mo to MPT, a process that requires MoeA and which is enhanced by MogA in an Mg2 ATP-dependent manner . MoCF is the active co-factor in eukaryotic and some prokaryotic molybdoenzymes, but the majority of bacterial enzymes requiring MoCF, need a modification of MTP for it to be active; MobA is involved in the attachment of a nucleotide monophosphate to MPT resulting in the MGD co-factor, the active co-factor for most prokaryotic molybdoenzymes. Bacterial two-hybrid studies have revealed the close interactions between MoeA, MogA, and MobA in the synthesis of MoCF . Moreover the close functional association of MoeA and MogA in the synthesis of MoCF is supported by fact that the known eukaryotic homologues to MoeA and MogA exist as fusion proteins: CNX1 () of Arabidopsis thaliana (Mouse-ear cress), mammalian Gephryin (e.g. Q9NQX3 from SWISSPROT) and Drosophila melanogaster (Fruit fly) Cinnamon (P39205 from SWISSPROT) . This entry represents the bacterial form of MoaA (molybdenum cofactor biosynthesis protein A). The MoaA protein is a member of the wider S-adenosylmethionine(SAM)-dependent enzyme family which catalyze the formation of protein and/or substrate radicals by reductive cleavage of SAM via a [4Fe-4S] cluster. Monomeric and homodimeric forms of MoaA have been observed in vivo, and it is not clear what the physiologically relevant form of the enzyme is . The core of each monomer consists of an incomplete TIM barrel, formed by the N-terminal region of the protein, containing a [4Fe-4S] cluster. The C-terminal region of the protein, which also contains a [4Fe-4S] cluster consists of a beta-sheet covering the lateral opening of the barrel, an extended loop and three alpha helices. The N-terminal [4Fe-4S] cluster is coordinated with 3 cysteines and an exchangeable SAM molecule, while the C-terminal [4Fe-4S], also coordinated with 3 cysteines, is the binding and activation site for GTP .; GO: 0046872 metal ion binding, 0006777 Mo-molybdopterin cofactor biosynthetic process.
Probab=99.71 E-value=1.6e-15 Score=130.72 Aligned_cols=213 Identities=21% Similarity=0.365 Sum_probs=158.2
Q ss_pred EEECCCCCCHHHCCCCCCE-----ECCCCCCCCCHHHHHHHHHHHHHCCCEEEEEEECCCCCCCCHHHHHHHHHHHHCCC
Q ss_conf 9972743000001122330-----12555567898999999999972997479997269813249899999999986199
Q gi|254781065|r 99 LKLLHVCPVYCRFCFRREM-----VGSQKGTVLSSKDTEAALAYIQEKSQIWEVIFTGGDPLILSHKRLQKVLKTLRYIK 173 (352)
Q Consensus 99 l~~t~~C~~~CryCfR~~~-----~~~~~~~~~~~~~~~~~~~Yi~~~~eI~eVilSGGDPl~l~~~~L~~ll~~L~~i~ 173 (352)
T Consensus 14 iSvTDRCNlRC~YCMP~~~FG~~~~f~~~~~~Lt~eEi~rl~~~~v~~-Gv~KvRlTGGEPLlR~~--l~~lv~~~~~~~ 90 (346)
T TIGR02666 14 ISVTDRCNLRCVYCMPEEGFGEGLDFLPKEELLTFEEIERLVRAFVGL-GVRKVRLTGGEPLLRKD--LVELVARLAALP 90 (346)
T ss_pred EEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHC-CCEEEEEECCCCCCCCC--HHHHHHHHHHCC
T ss_conf 876164787246668865678876678755668989999999999974-97168752777441367--589999998427
Q ss_pred C--CEEEEEECCEEEEEHHHCCHHHHHHHHHCCC-CEEEEECCCCHHHC---C------HHHHHHHHHHHHCCCE-EEEC
Q ss_conf 8--1289874343563434339999999862599-38999336995886---9------9999999999987989-8232
Q gi|254781065|r 174 H--VQILRFHSRVPIVDPQRINPELIQCLKEAGK-PVYIAIHANHPYEF---S------EEAIAAISRLANAGII-LLSQ 240 (352)
Q Consensus 174 h--v~~IRi~TR~pv~~P~Rit~~L~~~l~~~~~-~~~iv~H~NHp~El---t------~~~~~A~~~L~~~Gv~-v~nQ 240 (352)
T Consensus 91 g~~~~di~lTTNG-~~L~-----~~a~~L~eAGL~rvNvSLDsLd~~~F~~It~~~~~l~~Vl~Gi~aA~~~Gl~~vKlN 164 (346)
T TIGR02666 91 GIEIEDIALTTNG-LLLE-----RHAKDLKEAGLKRVNVSLDSLDPERFAKITRRGGRLEQVLAGIDAALEAGLKPVKLN 164 (346)
T ss_pred CCCCCEEEECCCH-HHHH-----HHHHHHHHCCCCCEEEEEECCCHHHHHHHHCCCCCHHHHHHHHHHHHHCCCCCEEEE
T ss_conf 8543355410052-2358-----899999971888036540148889999985789988899999999996599831476
Q ss_pred HHHHHCCCCCHHHHHHHHHHHHHCCCEEEEEECCCCCCC-CCCCCCCHHHHHHHHHHHHHHCCC-----------CCCCE
Q ss_conf 798623457889999999999986982423011345765-210118699999999999982888-----------65410
Q gi|254781065|r 241 SVLLKGINDDPEILANLMRTFVELRIKPYYLHHPDLAAG-TSHFRLTIEEGQKIVASLKEKISG-----------LCQPF 308 (352)
Q Consensus 241 sVLLkgVND~~~~l~~L~~~L~~~gV~PYYl~~~d~v~G-~~hf~v~~~~~~~i~~~l~~~lsG-----------~~~P~ 308 (352)
T Consensus 165 ~V~~~G~Nd~E--i~~l~~~~~~~~~~lRFIE~MP~G~~~~~~~~~~~~~~~~~l~~~~~~~~~l~p~~~~~~~~pa~~~ 242 (346)
T TIGR02666 165 TVVLRGVNDDE--IVDLAEFAKERGVTLRFIELMPLGEGGNGWRGKEFVSADEILERLEQAFGPLEPVPSPRGNGPAPAY 242 (346)
T ss_pred EEECCCCCHHH--HHHHHHHHHHCCCEEEEEEECCCCCCCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCCCCCE
T ss_conf 67627889778--9999999975796078875154676300000034535899999999743863445678888763201
Q ss_pred EEEECCCCCCCEEE
Q ss_conf 66317888882355
Q gi|254781065|r 309 YILDLPGGYGKVKI 322 (352)
Q Consensus 309 ~v~d~p~~~GKv~i 322 (352)
T Consensus 243 ~~~~~~g~~G~~G~ 256 (346)
T TIGR02666 243 RWRSLPGGKGEIGF 256 (346)
T ss_pred EEEECCCCCEEEEE
T ss_conf 43312786148887