ID G8TU80_SULAD Unreviewed; 464 AA.
AC G8TU80;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 64.
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=Sulac_2282 {ECO:0000313|EMBL:AEW05752.1};
OS Sulfobacillus acidophilus (strain ATCC 700253 / DSM 10332 / NAL).
OC Bacteria; Bacillota; Clostridia; Eubacteriales;
OC Clostridiales Family XVII. Incertae Sedis; Sulfobacillus.
OX NCBI_TaxID=679936 {ECO:0000313|EMBL:AEW05752.1, ECO:0000313|Proteomes:UP000005439};
RN [1] {ECO:0000313|Proteomes:UP000005439}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700253 / DSM 10332 / NAL
RC {ECO:0000313|Proteomes:UP000005439};
RA Lucas S., Han J., Lapidus A., Bruce D., Goodwin L., Pitluck S., Peters L.,
RA Kyrpides N., Mavromatis K., Ivanova N., Mikhailova N., Chertkov O.,
RA Saunders E., Detter J.C., Tapia R., Han C., Land M., Hauser L.,
RA Markowitz V., Cheng J.-F., Hugenholtz P., Woyke T., Wu D., Pukall R.,
RA Gehrich-Schroeter G., Schneider S., Klenk H.-P., Eisen J.A.;
RT "The complete genome of chromosome of Sulfobacillus acidophilus DSM
RT 10332.";
RL Submitted (DEC-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AEW05752.1, ECO:0000313|Proteomes:UP000005439}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700253 / DSM 10332 / NAL
RC {ECO:0000313|Proteomes:UP000005439};
RX PubMed=23407703; DOI=10.4056/sigs.2736042;
RA Anderson I., Chertkov O., Chen A., Saunders E., Lapidus A., Nolan M.,
RA Lucas S., Hammon N., Deshpande S., Cheng J.F., Han C., Tapia R.,
RA Goodwin L.A., Pitluck S., Liolios K., Pagani I., Ivanova N., Mikhailova N.,
RA Pati A., Palaniappan K., Land M., Pan C., Rohde M., Pukall R., Goker M.,
RA Detter J.C., Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Kyrpides N.C., Klenk H.P., Mavromatis K.;
RT "Complete genome sequence of the moderately thermophilic mineral-sulfide-
RT oxidizing firmicute Sulfobacillus acidophilus type strain (NAL(T)).";
RL Stand. Genomic Sci. 6:1-13(2012).
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; CP003179; AEW05752.1; -; Genomic_DNA.
DR AlphaFoldDB; G8TU80; -.
DR STRING; 679936.Sulac_2282; -.
DR KEGG; sap:Sulac_2282; -.
DR PATRIC; fig|679936.5.peg.2365; -.
DR HOGENOM; CLU_022752_2_0_9; -.
DR UniPathway; UPA00148; UER00231.
DR Proteomes; UP000005439; 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; 1.
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:UP000005439}.
FT DOMAIN 7..193
FT /note="CobQ/CobB/MinD/ParA nucleotide binding"
FT /evidence="ECO:0000259|Pfam:PF01656"
FT DOMAIN 253..445
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 335
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
FT SITE 439
FT /note="Increases nucleophilicity of active site Cys"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
SQ SEQUENCE 464 AA; 50669 MW; FEBB20EB63348EA5 CRC64;
MTKRPRLVIA APSSGSGKTT VTVGLMAAFR RRGLTVQGFK VGPDYIDPSY HTAITGRPSR
NLDSWMMSHA VLGEVFDRGS RDADLSVIEG VMGLFDGKEA TGDQASTAEV SRLLKAPVIL
VVDVGGMAAS AAAVVLGFQW LDPRVSVAGV IANRVGSEGH YHIIKQAIER VTGVPVLGYL
LKSSEVTMPS RHLGLIPAIE RGELSPLFNR LADLVARTVD LDAIWRMAER YADWDPPDPI
LFAGEPKPAA VSVAVARDRA FNFYYPENLD LLRWHGAEIV PFRPLEGEPV PAGADALYLG
GGFPEEFLPQ LSAQNAVHQS VRRAVEAGMP VVAECGGYMY LMDAIVDKNG ERYPMAGVIP
AVAVMEARLV ALGYREVTAL SDNALLLANE RARGHEFHYS SIRYGAESWA WPYAFEVSGR
RQTRRDGYAE GRLLASYMHL HFASHPAMVT RFIEAAKGRR EARR
//
