ID F6EIZ9_HOYSD Unreviewed; 467 AA.
AC F6EIZ9;
DT 27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT 27-JUL-2011, sequence version 1.
DT 27-MAR-2024, entry version 61.
DE RecName: Full=Hydrogenobyrinate a,c-diamide synthase {ECO:0000256|HAMAP-Rule:MF_00027};
DE EC=6.3.5.9 {ECO:0000256|HAMAP-Rule:MF_00027};
DE AltName: Full=Hydrogenobyrinic acid a,c-diamide synthase {ECO:0000256|HAMAP-Rule:MF_00027};
GN Name=cobB {ECO:0000256|HAMAP-Rule:MF_00027,
GN ECO:0000313|EMBL:AEF40060.1};
GN OrderedLocusNames=AS9A_1611 {ECO:0000313|EMBL:AEF40060.1};
OS Hoyosella subflava (strain DSM 45089 / JCM 17490 / NBRC 109087 / DQS3-9A1)
OS (Amycolicicoccus subflavus).
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Hoyosellaceae;
OC Hoyosella.
OX NCBI_TaxID=443218 {ECO:0000313|EMBL:AEF40060.1, ECO:0000313|Proteomes:UP000009235};
RN [1] {ECO:0000313|EMBL:AEF40060.1, ECO:0000313|Proteomes:UP000009235}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 45089 / DQS3-9A1 {ECO:0000313|Proteomes:UP000009235};
RX PubMed=21725023; DOI=10.1128/JB.05388-11;
RA Cai M., Chen W.M., Nie Y., Chi C.Q., Wang Y.N., Tang Y.Q., Li G.Y.,
RA Wu X.L.;
RT "Complete genome sequence of Amycolicicoccus subflavus DQS3-9A1T, an
RT actinomycete isolated from crude oil-polluted soil.";
RL J. Bacteriol. 193:4538-4539(2011).
CC -!- FUNCTION: Catalyzes the ATP-dependent amidation of the two carboxylate
CC groups at positions a and c of hydrogenobyrinate, using either L-
CC glutamine or ammonia as the nitrogen source. {ECO:0000256|HAMAP-
CC Rule:MF_00027}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 ATP + 2 H2O + hydrogenobyrinate + 2 L-glutamine = 2 ADP + 2
CC H(+) + hydrogenobyrinate a,c-diamide + 2 L-glutamate + 2 phosphate;
CC Xref=Rhea:RHEA:12544, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58359, ChEBI:CHEBI:77873, ChEBI:CHEBI:77874,
CC ChEBI:CHEBI:456216; EC=6.3.5.9; 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 precorrin-2 (aerobic route): step 9/10.
CC {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 hydrogenobyrinate and catalyzes the
CC ultimate 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 hydrogenobyrinate are
CC activated for nucleophilic attack via formation of a phosphorylated
CC intermediate by ATP. CobB catalyzes first the amidation of the c-
CC carboxylate, and then that of the a-carboxylate. {ECO:0000256|HAMAP-
CC Rule:MF_00027}.
CC -!- SIMILARITY: Belongs to the CobB/CbiA family. {ECO:0000256|HAMAP-
CC Rule:MF_00027}.
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DR EMBL; CP002786; AEF40060.1; -; Genomic_DNA.
DR AlphaFoldDB; F6EIZ9; -.
DR STRING; 443218.AS9A_1611; -.
DR KEGG; asd:AS9A_1611; -.
DR eggNOG; COG1797; Bacteria.
DR HOGENOM; CLU_022752_1_1_11; -.
DR UniPathway; UPA00148; UER00220.
DR Proteomes; UP000009235; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0042242; F:cobyrinic acid a,c-diamide synthase activity; IEA:InterPro.
DR GO; GO:0043802; F:hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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:UP000009235}.
FT DOMAIN 7..193
FT /note="CobQ/CobB/MinD/ParA nucleotide binding"
FT /evidence="ECO:0000259|Pfam:PF01656"
FT DOMAIN 258..438
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 339
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
FT SITE 435
FT /note="Increases nucleophilicity of active site Cys"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
SQ SEQUENCE 467 AA; 48274 MW; A3DEEAC6CED860EE CRC64;
MTVPAVVLAA PSSGSGKTTL ATGIMAALRA SGLRVAPFKV GPDYIDPGYH SLATGRPGRN
LDPVLTSPEL VGPLFQHGSA GCDIAIVEGV MGLFDGRIGS AELAEGSTAQ VAALLGAPVV
LVVDVRGHSQ SLAALLHGFA TFDPRVRIAG VILNQVGSDR HEHVLREACD RAGMPVLGVV
PRDGNVSLPS RHLGLVTAAE HGGAADAAIR AMGELARSCI DLPGLRQIAR SAVLAEAWSP
GGALGESSGA GYQRRPVIAV ASGPAFTFRY AEHDELLRAA GADIAVFDPL SDGLPEGTTG
IVLPGGFPEL YAAALAENVA LLSQVRDAAA AEVPIVAECA GLLYLSRKVD LYPMAGVIAA
DAVFGKRLVL GYRDAAALSD SVAFRAGERV TGHEFHRTHL LENERTDAAW GWRDHAGALV
REGFVGNSVH ASYLHTHPAG HPSSVARFVA AARAKQPVVE SRPAIAP
//
