ID PYRB_STRA5 Reviewed; 307 AA.
AC Q8DZQ5;
DT 26-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 27-MAR-2024, entry version 107.
DE RecName: Full=Aspartate carbamoyltransferase catalytic subunit {ECO:0000255|HAMAP-Rule:MF_00001};
DE EC=2.1.3.2 {ECO:0000255|HAMAP-Rule:MF_00001};
DE AltName: Full=Aspartate transcarbamylase {ECO:0000255|HAMAP-Rule:MF_00001};
DE Short=ATCase {ECO:0000255|HAMAP-Rule:MF_00001};
GN Name=pyrB {ECO:0000255|HAMAP-Rule:MF_00001}; OrderedLocusNames=SAG1044;
OS Streptococcus agalactiae serotype V (strain ATCC BAA-611 / 2603 V/R).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=208435;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-611 / 2603 V/R;
RX PubMed=12200547; DOI=10.1073/pnas.182380799;
RA Tettelin H., Masignani V., Cieslewicz M.J., Eisen J.A., Peterson S.N.,
RA Wessels M.R., Paulsen I.T., Nelson K.E., Margarit I., Read T.D.,
RA Madoff L.C., Wolf A.M., Beanan M.J., Brinkac L.M., Daugherty S.C.,
RA DeBoy R.T., Durkin A.S., Kolonay J.F., Madupu R., Lewis M.R., Radune D.,
RA Fedorova N.B., Scanlan D., Khouri H.M., Mulligan S., Carty H.A.,
RA Cline R.T., Van Aken S.E., Gill J., Scarselli M., Mora M., Iacobini E.T.,
RA Brettoni C., Galli G., Mariani M., Vegni F., Maione D., Rinaudo D.,
RA Rappuoli R., Telford J.L., Kasper D.L., Grandi G., Fraser C.M.;
RT "Complete genome sequence and comparative genomic analysis of an emerging
RT human pathogen, serotype V Streptococcus agalactiae.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:12391-12396(2002).
CC -!- FUNCTION: Catalyzes the condensation of carbamoyl phosphate and
CC aspartate to form carbamoyl aspartate and inorganic phosphate, the
CC committed step in the de novo pyrimidine nucleotide biosynthesis
CC pathway. {ECO:0000255|HAMAP-Rule:MF_00001}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=carbamoyl phosphate + L-aspartate = H(+) + N-carbamoyl-L-
CC aspartate + phosphate; Xref=Rhea:RHEA:20013, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29991, ChEBI:CHEBI:32814, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58228; EC=2.1.3.2; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00001};
CC -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC (S)-dihydroorotate from bicarbonate: step 2/3. {ECO:0000255|HAMAP-
CC Rule:MF_00001}.
CC -!- SUBUNIT: Heterododecamer (2C3:3R2) of six catalytic PyrB chains
CC organized as two trimers (C3), and six regulatory PyrI chains organized
CC as three dimers (R2). {ECO:0000255|HAMAP-Rule:MF_00001}.
CC -!- SIMILARITY: Belongs to the aspartate/ornithine carbamoyltransferase
CC superfamily. ATCase family. {ECO:0000255|HAMAP-Rule:MF_00001}.
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DR EMBL; AE009948; AAM99926.1; -; Genomic_DNA.
DR RefSeq; NP_688054.1; NC_004116.1.
DR RefSeq; WP_001016473.1; NC_004116.1.
DR AlphaFoldDB; Q8DZQ5; -.
DR SMR; Q8DZQ5; -.
DR STRING; 208435.SAG1044; -.
DR KEGG; sag:SAG1044; -.
DR PATRIC; fig|208435.3.peg.1055; -.
DR HOGENOM; CLU_043846_2_1_9; -.
DR OrthoDB; 9774690at2; -.
DR UniPathway; UPA00070; UER00116.
DR Proteomes; UP000000821; Chromosome.
DR GO; GO:0016597; F:amino acid binding; IEA:InterPro.
DR GO; GO:0004070; F:aspartate carbamoyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006207; P:'de novo' pyrimidine nucleobase biosynthetic process; IEA:InterPro.
DR GO; GO:0044205; P:'de novo' UMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0006520; P:amino acid metabolic process; IEA:InterPro.
DR Gene3D; 3.40.50.1370; Aspartate/ornithine carbamoyltransferase; 2.
DR HAMAP; MF_00001; Asp_carb_tr; 1.
DR InterPro; IPR006132; Asp/Orn_carbamoyltranf_P-bd.
DR InterPro; IPR006130; Asp/Orn_carbamoylTrfase.
DR InterPro; IPR036901; Asp/Orn_carbamoylTrfase_sf.
DR InterPro; IPR002082; Asp_carbamoyltransf.
DR InterPro; IPR006131; Asp_carbamoyltransf_Asp/Orn-bd.
DR NCBIfam; TIGR00670; asp_carb_tr; 1.
DR PANTHER; PTHR45753:SF6; ASPARTATE CARBAMOYLTRANSFERASE; 1.
DR PANTHER; PTHR45753; ORNITHINE CARBAMOYLTRANSFERASE, MITOCHONDRIAL; 1.
DR Pfam; PF00185; OTCace; 1.
DR Pfam; PF02729; OTCace_N; 1.
DR PRINTS; PR00100; AOTCASE.
DR PRINTS; PR00101; ATCASE.
DR SUPFAM; SSF53671; Aspartate/ornithine carbamoyltransferase; 1.
DR PROSITE; PS00097; CARBAMOYLTRANSFERASE; 1.
PE 3: Inferred from homology;
KW Pyrimidine biosynthesis; Reference proteome; Transferase.
FT CHAIN 1..307
FT /note="Aspartate carbamoyltransferase catalytic subunit"
FT /id="PRO_0000113202"
FT BINDING 59
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 60
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 87
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 109
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 139
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 142
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 172
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 224
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 265
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
FT BINDING 266
FT /ligand="carbamoyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58228"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00001"
SQ SEQUENCE 307 AA; 34836 MW; BF8DD4122C8A9255 CRC64;
MNHQTQTLSL EHFVSLEELS NQEVMSLIKR SIEVKENPSN IGFDKDYYVS NLFFENSTRT
HKSFEMAELK LGLKTIEFNA DTSSVNKGET LYDTILTMSA LGLDVCVIRH PDIDYYKELI
ASPNIHSAIV NGGDGSGQHP SQSLLDLVTI YEEFGYFKGL KIAIVGDLTH SRVAKSNMQV
LKRLGAEIFF SGPKEWYSSQ FDEYGQYLPI DQLVDQIDVL MLLRVQHERH DGKGVFSKES
YHQQFGLTKE RYKHLRDTAI IMHPAPVNRD VEIASDLVEA DKARIVKQMS NGVYARIAIL
EAVLNSR
//
