(data stored in ACNUC9435 zone)

SWISSPROT: CBIA_LISIN

ID   CBIA_LISIN              Reviewed;         452 AA.
AC   Q92CL7;
DT   23-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   11-DEC-2019, entry version 89.
DE   RecName: Full=Cobyrinate a,c-diamide synthase {ECO:0000255|HAMAP-Rule:MF_00027};
DE            EC=6.3.5.11 {ECO:0000255|HAMAP-Rule:MF_00027};
DE   AltName: Full=Cobyrinic acid a,c-diamide synthetase {ECO:0000255|HAMAP-Rule:MF_00027};
GN   Name=cbiA {ECO:0000255|HAMAP-Rule:MF_00027}; OrderedLocusNames=lin1154;
OS   Listeria innocua serovar 6a (strain ATCC BAA-680 / CLIP 11262).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX   NCBI_TaxID=272626;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-680 / CLIP 11262;
RX   PubMed=11679669; DOI=10.1126/science.1063447;
RA   Glaser P., Frangeul L., Buchrieser C., Rusniok C., Amend A., Baquero F.,
RA   Berche P., Bloecker H., Brandt P., Chakraborty T., Charbit A.,
RA   Chetouani F., Couve E., de Daruvar A., Dehoux P., Domann E.,
RA   Dominguez-Bernal G., Duchaud E., Durant L., Dussurget O., Entian K.-D.,
RA   Fsihi H., Garcia-del Portillo F., Garrido P., Gautier L., Goebel W.,
RA   Gomez-Lopez N., Hain T., Hauf J., Jackson D., Jones L.-M., Kaerst U.,
RA   Kreft J., Kuhn M., Kunst F., Kurapkat G., Madueno E., Maitournam A.,
RA   Mata Vicente J., Ng E., Nedjari H., Nordsiek G., Novella S., de Pablos B.,
RA   Perez-Diaz J.-C., Purcell R., Remmel B., Rose M., Schlueter T., Simoes N.,
RA   Tierrez A., Vazquez-Boland J.-A., Voss H., Wehland J., Cossart P.;
RT   "Comparative genomics of Listeria species.";
RL   Science 294:849-852(2001).
CC   -!- FUNCTION: Catalyzes the ATP-dependent amidation of the two carboxylate
CC       groups at positions a and c of cobyrinate, using either L-glutamine or
CC       ammonia as the nitrogen source. {ECO:0000255|HAMAP-Rule:MF_00027}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 ATP + cob(II)yrinate + 2 H2O + 2 L-glutamine = 2 ADP +
CC         cob(II)yrinate a,c diamide + 2 H(+) + 2 L-glutamate + 2 phosphate;
CC         Xref=Rhea:RHEA:26289, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:58359, ChEBI:CHEBI:58537, ChEBI:CHEBI:58894,
CC         ChEBI:CHEBI:456216; EC=6.3.5.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00027};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00027};
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       cob(II)yrinate a,c-diamide from sirohydrochlorin (anaerobic route):
CC       step 10/10. {ECO:0000255|HAMAP-Rule:MF_00027}.
CC   -!- DOMAIN: Comprises of two domains. The C-terminal domain contains the
CC       binding site for glutamine and catalyzes the hydrolysis of this
CC       substrate to glutamate and ammonia. The N-terminal domain is
CC       anticipated to bind ATP and cobyrinate and catalyzes the ultimate
CC       synthesis of the diamide product. The ammonia produced via the
CC       glutaminase domain is probably translocated to the adjacent domain via
CC       a molecular tunnel, where it reacts with an activated intermediate.
CC       {ECO:0000255|HAMAP-Rule:MF_00027}.
CC   -!- MISCELLANEOUS: The a and c carboxylates of cobyrinate are activated for
CC       nucleophilic attack via formation of a phosphorylated intermediate by
CC       ATP. CbiA catalyzes first the amidation of the c-carboxylate, and then
CC       that of the a-carboxylate. {ECO:0000255|HAMAP-Rule:MF_00027}.
CC   -!- SIMILARITY: Belongs to the CobB/CbiA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00027}.
DR   EMBL; AL596167; CAC96385.1; -; Genomic_DNA.
DR   PIR; AI1576; AI1576.
DR   RefSeq; WP_010990799.1; NC_003212.1.
DR   SMR; Q92CL7; -.
DR   STRING; 272626.lin1154; -.
DR   EnsemblBacteria; CAC96385; CAC96385; CAC96385.
DR   KEGG; lin:cbiA; -.
DR   eggNOG; ENOG4105C0Y; Bacteria.
DR   eggNOG; COG1797; LUCA.
DR   HOGENOM; HOG000289958; -.
DR   KO; K02224; -.
DR   OMA; QPFKCGP; -.
DR   OrthoDB; 692368at2; -.
DR   BioCyc; GCF_000195795:LIN_RS05890-MONOMER; -.
DR   UniPathway; UPA00148; UER00231.
DR   Proteomes; UP000002513; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0043775; F:cobyrinate a,c-diamide synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0042242; F:cobyrinic acid a,c-diamide synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.880; -; 1.
DR   HAMAP; MF_00027; CobB_CbiA; 1.
DR   InterPro; IPR004484; CbiA_synth.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR017929; CobB/CobQ_GATase.
DR   InterPro; IPR002586; CobQ/CobB/MinD/ParA_Nub-bd_dom.
DR   InterPro; IPR011698; GATase_3.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR43873; PTHR43873; 1.
DR   Pfam; PF01656; CbiA; 1.
DR   Pfam; PF07685; GATase_3; 1.
DR   SUPFAM; SSF52317; SSF52317; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00379; cobB; 1.
DR   PROSITE; PS51274; GATASE_COBBQ; 1.
PE   3: Inferred from homology;
DR   PRODOM; Q92CL7.
DR   SWISS-2DPAGE; Q92CL7.
KW   ATP-binding; Cobalamin biosynthesis; Glutamine amidotransferase; Ligase;
KW   Magnesium; Nucleotide-binding.
FT   CHAIN           1..452
FT                   /note="Cobyrinate a,c-diamide synthase"
FT                   /id="PRO_0000141259"
FT   DOMAIN          248..441
FT                   /note="GATase cobBQ-type"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00027"
FT   ACT_SITE        330
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00027"
FT   SITE            433
FT                   /note="Increases nucleophilicity of active site Cys"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00027"
SQ   SEQUENCE   452 AA;  49762 MW;  B0F7F07F2D7FDDD1 CRC64;
     MNKILIAAAS SGAGKTTVTL GIMQALKKRG FAVQPFKVGP DYIDTNYHQA ITGVASINLD
     SFLIDDDEML ASLFQKHGES ADISVIEGVM GLFDGLGTDR DNASTSFIAK CTKTPVILVV
     DGKAISTSAA AIVDGFNRFD PELKIAGVII NRVASENHFS LIKGAIERYT DVPVLGYLPK
     NAAVALPERH LGLVPQEEMT ELEAKWELLS DLITTHVDLD KLLEISKSSE NLSTSKAQMK
     VADFSGLRVA YALDAAFHFY YQDNLDLIRL TGAELIPFSP LEDNEVPEAD FIYIGGGFPE
     IFAKQLNDNR SMRKSILAAH EKGIPIYAEC GGLMYLGSSL EMEGKQYEMV GVFNGISKMT
     TRLRKFGYCI AEPLEETLIG KKGMSIRGHE FHHSVFETTE TACMKLSKKR DGEIVKEWRG
     GYQKGNTFAS YLHIHFYQNP AILMQMFGAG KR
//

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