ID A0A024HE88_PSEKB Unreviewed; 431 AA.
AC A0A024HE88;
DT 09-JUL-2014, integrated into UniProtKB/TrEMBL.
DT 09-JUL-2014, sequence version 1.
DT 27-MAR-2024, entry version 45.
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:CDF82929.1};
GN ORFNames=PKB_1568 {ECO:0000313|EMBL:CDF82929.1};
OS Pseudomonas knackmussii (strain DSM 6978 / LMG 23759 / B13).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Pseudomonas.
OX NCBI_TaxID=1301098 {ECO:0000313|EMBL:CDF82929.1, ECO:0000313|Proteomes:UP000025241};
RN [1] {ECO:0000313|EMBL:CDF82929.1, ECO:0000313|Proteomes:UP000025241}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B13 {ECO:0000313|EMBL:CDF82929.1,
RC ECO:0000313|Proteomes:UP000025241};
RA Linke B.;
RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:CDF82929.1, ECO:0000313|Proteomes:UP000025241}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B13 {ECO:0000313|EMBL:CDF82929.1,
RC ECO:0000313|Proteomes:UP000025241};
RA Miyazaki R., Bertelli C., Falquet L., Robinson-Rechavi M., Gharib W.,
RA Roy S., Van der Meer J.R.;
RT "Genome sequence of the 3-chlorobenzoate degrading bacterium Pseudomonas
RT knackmussii B13 shows multiple evidence for horizontal gene transfer.";
RL Submitted (MAY-2014) to the EMBL/GenBank/DDBJ databases.
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}.
CC -!- SIMILARITY: Belongs to the CobB/CobQ family. CobQ subfamily.
CC {ECO:0000256|ARBA:ARBA00006205}.
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DR EMBL; HG322950; CDF82929.1; -; Genomic_DNA.
DR RefSeq; WP_043250508.1; NZ_HG322950.1.
DR AlphaFoldDB; A0A024HE88; -.
DR STRING; 1301098.PKB_1568; -.
DR KEGG; pkc:PKB_1568; -.
DR PATRIC; fig|1301098.3.peg.1561; -.
DR eggNOG; COG1797; Bacteria.
DR HOGENOM; CLU_022752_0_2_6; -.
DR OrthoDB; 9764035at2; -.
DR UniPathway; UPA00148; UER00220.
DR Proteomes; UP000025241; 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:UP000025241}.
FT DOMAIN 11..188
FT /note="CobQ/CobB/MinD/ParA nucleotide binding"
FT /evidence="ECO:0000259|Pfam:PF01656"
FT DOMAIN 240..420
FT /note="CobB/CobQ-like glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF07685"
FT ACT_SITE 322
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
FT SITE 415
FT /note="Increases nucleophilicity of active site Cys"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00027"
SQ SEQUENCE 431 AA; 46099 MW; FC8C92E06658714B CRC64;
MPQARQCPAL LIAAPASGQG KTTVTAALAR LHARQGRKVR VFKVGPDFLD PMILARASGA
QVYQLDLWMV GEAQSRRLLW EAAGEADLIL IEGVMGLFDG TPSAADLART FDVPVLGVIN
GQAMAQTFGA LAVGLATYQP GLPFSGVLGN RVGSQRHSDL LRESLPDWIR WYGALPRSAD
LELPSRHLGL VQADELADLD ARLDAAADAL AASSAVDLPP PVAFAAPDEP GLSQPLAGVR
IGVARDSAFA FLYQANLDLL RELGAELEFF SPLHDEHLPE VDSLYLPGGY PELHLPQLEN
NRAMAQAIRA HHTDGKPLLA ECGGMLYLLD HLTDANGLCG QLLGLLPGRA TLQKRLAALA
LQEVELPEGP LRGHTFHHSL LDTEVEPALR GTCPNAKPVA EAVFRLGRLT ASYIHFYLPS
NPAAAAAIFR P
//
