ID   OTC_BUCAT               Reviewed;         338 AA.
AC   B8D7Q5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=Ornithine carbamoyltransferase {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};
GN   OrderedLocusNames=BUAPTUC7_362;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain Tuc7).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=561501;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Tuc7;
RX   PubMed=19150844; DOI=10.1126/science.1167140;
RA   Moran N.A., McLaughlin H.J., Sorek R.;
RT   "The dynamics and time scale of ongoing genomic erosion in symbiotic
RT   bacteria.";
RL   Science 323:379-382(2009).
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; CP001158; ACL30170.1; -; Genomic_DNA.
DR   RefSeq; WP_012619523.1; NC_011834.1.
DR   AlphaFoldDB; B8D7Q5; -.
DR   SMR; B8D7Q5; -.
DR   KEGG; bau:BUAPTUC7_362; -.
DR   HOGENOM; CLU_043846_3_1_6; -.
DR   OMA; KYNGYEQ; -.
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   GO; GO:0019546; P:arginine deiminase pathway; 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   Arginine metabolism; Cytoplasm; Transferase.
FT   CHAIN           1..338
FT                   /note="Ornithine carbamoyltransferase"
FT                   /id="PRO_1000163965"
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;  38847 MW;  E6CCABF45B926E25 CRC64;
     MNNLYQRDCL RLLDFTSLEL QNIITLAQKL KQYKKNNKEI QLLKKKNIAL IFEKESTRTR
     CSFEVAAFDQ GAHVTYLGPG STHLGTKESI EDTAKILGRL YDGIQYRGHH HSTIEILAKN
     SKVPVWNGLT EKFHPTQLLA DLLTIKEIFP ERKFYEIKCA YVGDAHNNMG NSLLEAASLV
     GLDLRLVAPK ECWPEKNIFK FCKEQIKNKK GNIICTENIN EGVKNVDFIY TDVWVSMGES
     QEVWKKRIEL LSSYQVNSLM LKITNNPQVK VLHCLPALHD QKTCTVKSIL KKYGFKNGME
     ITDEVFQKNQ KIIFEQAENR LHTIKAILVS SLLKTIKF