ID   OTCC_STRRT              Reviewed;         337 AA.
AC   Q6TK73;
DT   21-DEC-2004, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 71.
DE   RecName: Full=Ornithine carbamoyltransferase, catabolic {ECO:0000255|HAMAP-Rule:MF_01109};
DE            Short=OTCase {ECO:0000255|HAMAP-Rule:MF_01109};
DE            EC=2.1.3.3 {ECO:0000255|HAMAP-Rule:MF_01109};
GN   Name=arcB {ECO:0000255|HAMAP-Rule:MF_01109};
OS   Streptococcus ratti.
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=1341;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=FA-1;
RX   PubMed=15006749; DOI=10.1128/aem.70.3.1321-1327.2004;
RA   Griswold A., Chen Y.-Y.M., Snyder J.A., Burne R.A. Jr.;
RT   "Characterization of the arginine deiminase operon of Streptococcus rattus
RT   FA-1.";
RL   Appl. Environ. Microbiol. 70:1321-1327(2004).
CC   -!- FUNCTION: Reversibly catalyzes the transfer of the carbamoyl group from
CC       carbamoyl phosphate (CP) to the N(epsilon) atom of ornithine (ORN) to
CC       produce L-citrulline. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=carbamoyl phosphate + L-ornithine = H(+) + L-citrulline +
CC         phosphate; Xref=Rhea:RHEA:19513, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:46911, ChEBI:CHEBI:57743,
CC         ChEBI:CHEBI:58228; EC=2.1.3.3; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01109};
CC   -!- PATHWAY: Amino-acid degradation; L-arginine degradation via ADI
CC       pathway; carbamoyl phosphate from L-arginine: step 2/2.
CC       {ECO:0000255|HAMAP-Rule:MF_01109}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01109}.
CC   -!- SIMILARITY: Belongs to the aspartate/ornithine carbamoyltransferase
CC       superfamily. OTCase family. {ECO:0000255|HAMAP-Rule:MF_01109}.
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DR   EMBL; AY396288; AAR30323.1; -; Genomic_DNA.
DR   RefSeq; WP_003089938.1; NZ_CP043405.1.
DR   AlphaFoldDB; Q6TK73; -.
DR   SMR; Q6TK73; -.
DR   UniPathway; UPA00254; UER00365.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016597; F:amino acid binding; IEA:InterPro.
DR   GO; GO:0004585; F:ornithine carbamoyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019547; P:arginine catabolic process to ornithine; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.40.50.1370; -; 2.
DR   HAMAP; MF_01109; OTCase; 1.
DR   InterPro; IPR006132; Asp/Orn_carbamoyltranf_P-bd.
DR   InterPro; IPR006130; Asp/Orn_carbamoylTrfase.
DR   InterPro; IPR036901; Asp/Orn_carbamoylTrfase_sf.
DR   InterPro; IPR006131; Asp_carbamoyltransf_Asp/Orn-bd.
DR   InterPro; IPR002292; Orn/put_carbamltrans.
DR   InterPro; IPR024904; OTCase_ArgI.
DR   Pfam; PF00185; OTCace; 1.
DR   Pfam; PF02729; OTCace_N; 1.
DR   PRINTS; PR00100; AOTCASE.
DR   PRINTS; PR00102; OTCASE.
DR   SUPFAM; SSF53671; SSF53671; 1.
DR   TIGRFAMs; TIGR00658; orni_carb_tr; 1.
DR   PROSITE; PS00097; CARBAMOYLTRANSFERASE; 1.
PE   3: Inferred from homology;
KW   Arginine metabolism; Cytoplasm; Transferase.
FT   CHAIN           1..337
FT                   /note="Ornithine carbamoyltransferase, catabolic"
FT                   /id="PRO_0000113042"
FT   BINDING         57..60
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         84
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         108
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         135..138
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         167
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         231
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         235..236
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         272..273
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         317
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
SQ   SEQUENCE   337 AA;  37938 MW;  22A3C46F8398792F CRC64;
     MTQVFQGRSF LAEKDFTRAE LEYLIDFSAH LKDLKKRGVP HHYLEGKNIA LLFEKTSTRT
     RSAFTTAAID LGAHPEYLGA NDIQLGKKES TEDTAKVLGR MFDGIEFRGF SQRKVEELAE
     FSGVPVWNGL TDEWHPTQML ADFLTVKENF GKLEGLTLVY CGDGRNNMAN SLLVTGAILG
     VNVRIFSPKE LFPADDIVKL AESYAKESGA KLLITEDADE AVRGADVLYT DVWVSMGEES
     KFEERVKLLK PYQVNMELIK KAGNENLIFL HCLPAFHDTN TVYGKDIEEK FGVKEMEVTD
     EVFRSSYARQ FDQAENRMHT IKAVMAATLG NLFIPKV