ID D2RF76_ARCPA Unreviewed; 455 AA.
AC D2RF76;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 74.
DE RecName: Full=Cobyrinate a,c-diamide synthase {ECO:0000256|HAMAP-Rule:MF_00027};
DE EC=6.3.5.11 {ECO:0000256|HAMAP-Rule:MF_00027};
DE AltName: Full=Cobyrinic acid a,c-diamide synthetase {ECO:0000256|HAMAP-Rule:MF_00027};
GN Name=cbiA {ECO:0000256|HAMAP-Rule:MF_00027};
GN OrderedLocusNames=Arcpr_1725 {ECO:0000313|EMBL:ADB58770.1};
OS Archaeoglobus profundus (strain DSM 5631 / JCM 9629 / NBRC 100127 / Av18).
OC Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae;
OC Archaeoglobus.
OX NCBI_TaxID=572546 {ECO:0000313|EMBL:ADB58770.1, ECO:0000313|Proteomes:UP000001901};
RN [1] {ECO:0000313|EMBL:ADB58770.1, ECO:0000313|Proteomes:UP000001901}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 5631 / JCM 9629 / NBRC 100127 / Av18
RC {ECO:0000313|Proteomes:UP000001901};
RX PubMed=21304717;
RA von Jan M., Lapidus A., Del Rio T.G., Copeland A., Tice H., Cheng J.F.,
RA Lucas S., Chen F., Nolan M., Goodwin L., Han C., Pitluck S., Liolios K.,
RA Ivanova N., Mavromatis K., Ovchinnikova G., Chertkov O., Pati A., Chen A.,
RA Palaniappan K., Land M., Hauser L., Chang Y.J., Jeffries C.D., Saunders E.,
RA Brettin T., Detter J.C., Chain P., Eichinger K., Huber H., Spring S.,
RA Rohde M., Goker M., Wirth R., Woyke T., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Archaeoglobus profundus type strain (AV18).";
RL Stand. Genomic Sci. 2:327-346(2010).
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:0000256|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:0000256|HAMAP-
CC Rule:MF_00027};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946,
CC ECO:0000256|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:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00027}.
CC -!- SIMILARITY: Belongs to the CobB/CbiA family. {ECO:0000256|HAMAP-
CC Rule:MF_00027}.
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DR EMBL; CP001857; ADB58770.1; -; Genomic_DNA.
DR RefSeq; WP_012941105.1; NC_013741.1.
DR AlphaFoldDB; D2RF76; -.
DR STRING; 572546.Arcpr_1725; -.
DR PaxDb; 572546-Arcpr_1725; -.
DR GeneID; 8740419; -.
DR KEGG; apo:Arcpr_1725; -.
DR eggNOG; arCOG00106; Archaea.
DR HOGENOM; CLU_022752_2_0_2; -.
DR OrthoDB; 8896at2157; -.
DR UniPathway; UPA00148; UER00231.
DR Proteomes; UP000001901; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
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-UniRule.
DR CDD; cd05388; CobB_N; 1.
DR CDD; cd03130; GATase1_CobB; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 2.
DR HAMAP; MF_00027; CobB_CbiA; 1.
DR InterPro; IPR004484; CbiA/CobB_synth.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR002586; CobQ/CobB/MinD/ParA_Nub-bd_dom.
DR InterPro; IPR011698; GATase_3.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR00379; cobB; 1.
DR PANTHER; PTHR43873; COBYRINATE A,C-DIAMIDE SYNTHASE; 1.
DR PANTHER; PTHR43873:SF1; COBYRINATE A,C-DIAMIDE SYNTHASE; 1.
DR Pfam; PF01656; CbiA; 1.
DR Pfam; PF07685; GATase_3; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS51274; GATASE_COBBQ; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00027}; Cobalamin biosynthesis {ECO:0000256|HAMAP-Rule:MF_00027};
KW Glutamine amidotransferase {ECO:0000256|ARBA:ARBA00022962,
KW ECO:0000256|HAMAP-Rule:MF_00027};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00027};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00027};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00027}; Reference proteome {ECO:0000313|Proteomes:UP000001901}.
FT DOMAIN 6..183
FT /note="CobQ/CobB/MinD/ParA nucleotide binding"
FT /evidence="ECO:0000259|Pfam:PF01656"
FT DOMAIN 249..437
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 330
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
FT SITE 432
FT /note="Increases nucleophilicity of active site Cys"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
SQ SEQUENCE 455 AA; 51374 MW; 1B7A446A3B5D7D46 CRC64;
MDIPRITIAG IKSKVGKTTI AIGLMKALTD RGYVVQPYKV GPDFIDPIFH YFATKRHSRN
LDDFMFSKYD ILEAFERSFK GADIAVIEGK TGLYDSHNAL DEKGSTASIA KILKSPVILV
ADAERINRSI SAMLLGYKLF DRDVDIEGVI LNRVGNPRHA EKVRKSVEKL AKMRVVGVIP
RTAVDMPYRH LGLVPAHERG EIEEVIEKLA EMVETYVDVD KVVEIAHKAP KLEEVSYNAV
FERRNSSVRI GVVRDKPFCF YYQDNIDALS AKAEVVVVDS LKDRKLPEVD ALYIGGGFPE
VFAEGLEKNK PFRKSVYKFC DSGKPVYAEC GGLMFLGESI INDEGEFEMV GFLPIKTRMH
TKFRALGYCV YRAVKANPIS RVGDTIVGHE FHYSEVIPLE KLDFAYRVRR GKGVDGKHDG
IIRKNTLANY IHLHVLSYPK MVEKFLKTAE KMRRS
//
