ID   OTC_BUCAI               Reviewed;         338 AA.
AC   P57449;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   03-AUG-2022, entry version 123.
DE   RecName: Full=Ornithine carbamoyltransferase;
DE            Short=OTCase;
DE            EC=2.1.3.3;
GN   Name=argI; OrderedLocusNames=BU368;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
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;
CC   -!- PATHWAY: Amino-acid biosynthesis; L-arginine biosynthesis; L-arginine
CC       from L-ornithine and carbamoyl phosphate: step 1/3.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the aspartate/ornithine carbamoyltransferase
CC       superfamily. OTCase family. {ECO:0000305}.
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DR   EMBL; BA000003; BAB13072.1; -; Genomic_DNA.
DR   RefSeq; NP_240186.1; NC_002528.1.
DR   RefSeq; WP_010896090.1; NC_002528.1.
DR   AlphaFoldDB; P57449; -.
DR   SMR; P57449; -.
DR   STRING; 107806.10039038; -.
DR   EnsemblBacteria; BAB13072; BAB13072; BAB13072.
DR   KEGG; buc:BU368; -.
DR   PATRIC; fig|107806.10.peg.382; -.
DR   eggNOG; COG0078; Bacteria.
DR   HOGENOM; CLU_043846_3_1_6; -.
DR   OMA; KYNGYEQ; -.
DR   UniPathway; UPA00068; UER00112.
DR   Proteomes; UP000001806; Chromosome.
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:0006526; P:arginine biosynthetic process; IEA:UniProtKB-UniRule.
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   Amino-acid biosynthesis; Arginine biosynthesis; Cytoplasm;
KW   Reference proteome; Transferase.
FT   CHAIN           1..338
FT                   /note="Ornithine carbamoyltransferase"
FT                   /id="PRO_0000112897"
FT   BINDING         56..59
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         107
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         134..137
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         168
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         232
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         236..237
FT                   /ligand="L-ornithine"
FT                   /ligand_id="ChEBI:CHEBI:46911"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         274..275
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
FT   BINDING         320
FT                   /ligand="carbamoyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58228"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01109"
SQ   SEQUENCE   338 AA;  38865 MW;  E6CCAEE0584668E5 CRC64;
     MNNLYQRDCL RLLDFTSLEL QNIITLAQKL KQYKKNNKEI QLLKKKNIAL IFEKESTRTR
     CSFEVAAFDQ GAHVTYLGPG STHLGTKESI EDTAKILGRL YDGIQYRGHH HSTIEILAKN
     SKVPVWNGLT EKFHPTQLLA DLLTIKEIFP ERKFYEIKCA YVGDAHNNMG NSLLEAASLV
     GLDLRLVAPK ECWPEKNIFK FCKEQMKNKK GNIICTENIN EGVKNVDFIY TDVWVSMGES
     QEVWKKRIEL LSSYQVNSLM LKITNNPQVK VLHCLPALHD QKTCTVKSIL KKYGFKNGME
     ITDEVFQKNQ KIIFEQAENR LHTIKAILVS SLLKTIKF