HHsearch alignment for GI: 254780676 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=96.41  E-value=0.12  Score=33.11  Aligned_cols=182  Identities=16%  Similarity=0.233  Sum_probs=127.9

Q ss_pred             ECCCCCCCCCCCCCCCC---C------CCCCCHHHHHHHHHHHHHHCCCEEEEEC---CCCCCCCCCHHHHHHHHHHHHH
Q ss_conf             66522353522344678---9------9888823579999999970775189850---5445345325899999999998
Q gi|254780676|r   92 LGAICTRACTFCNVATG---K------PQPLDPQEPENISWAVRSMKLSHVVITS---VDRDDLDDGGAQHFAEVISAIR  159 (329)
Q Consensus        92 lG~~CTR~C~FC~V~~G---~------P~~~D~~EP~rvA~av~~l~Lk~vViTS---V~RDDL~DgGA~hfa~~I~~Ir  159 (329)
T Consensus        16 vTDRCNlRC~YCMP~~~FG~~~~f~~~~~~Lt~eEi~rl~~~~v~~Gv~KvRlTGGEPLlR~~--------l~~lv~~~~   87 (346)
T TIGR02666        16 VTDRCNLRCVYCMPEEGFGEGLDFLPKEELLTFEEIERLVRAFVGLGVRKVRLTGGEPLLRKD--------LVELVARLA   87 (346)
T ss_pred             ECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCEEEEEECCCCCCCCC--------HHHHHHHHH
T ss_conf             616478724666886567887667875566898999999999997497168752777441367--------589999998


Q ss_pred             HHCCCC--EEEEECCCCCCCHHHHHHHHHCCCHHHHHCCCCCC-CCCCCCC-CCCHHHHHHHHHHHHHHCCCEEEECCCE
Q ss_conf             533586--89981546234468999874107023320138300-0275638-9703589999999999708916701404
Q gi|254780676|r  160 ESAPST--TIEVLTPDFLRKPHALEKVVSAKPDVFNHNLETVA-SNYLMVR-PGARYFHSLRLLQRVKELDPLIFTKSGI  235 (329)
Q Consensus       160 ~~~P~~--~IEvLiPDf~G~~~al~~v~~A~pdV~nHNiETV~-rLy~~VR-p~a~Y~rSL~vL~~aK~~~~~i~TKSGl  235 (329)
T Consensus        88 ~~~g~~~~di~lTTNG~-~L~~~a~~L~eAGL~rvNvSLDsLd~~~F~~It~~~~~l~~Vl~Gi~aA~~~Gl~-~vKlN~  165 (346)
T TIGR02666        88 ALPGIEIEDIALTTNGL-LLERHAKDLKEAGLKRVNVSLDSLDPERFAKITRRGGRLEQVLAGIDAALEAGLK-PVKLNT  165 (346)
T ss_pred             HCCCCCCCEEEECCCHH-HHHHHHHHHHHCCCCCEEEEEECCCHHHHHHHHCCCCCHHHHHHHHHHHHHCCCC-CEEEEE
T ss_conf             42785433554100522-3588999999718880365401488899999857899888999999999965998-314766


Q ss_pred             EEEEEECHHHHHHHHHHHHHCCCCEEECCHHCCC-CC-CCCCCCCCCCHHH
Q ss_conf             8876420688999999999669939975022278-61-0078000238469
Q gi|254780676|r  236 MLGLGETRNEILQLMDDLRTADVDFLTMGQYLQP-TR-KHHKVESFVTPQD  284 (329)
Q Consensus       236 MvGLGEt~eEi~e~l~DLr~~gvdilTiGQYL~P-s~-~h~pV~ryv~P~e  284 (329)
T Consensus       166 V~~~G~Nd~Ei~~l~~~~~~~~~~lRFIE-~MP~G~~~~~~~~~~~~~~~~  215 (346)
T TIGR02666       166 VVLRGVNDDEIVDLAEFAKERGVTLRFIE-LMPLGEGGNGWRGKEFVSADE  215 (346)
T ss_pred             EECCCCCHHHHHHHHHHHHHCCCEEEEEE-ECCCCCCCCCCCCCCCCCHHH
T ss_conf             76278897789999999975796078875-154676300000034535899