ID   ASTC_ECO8A              Reviewed;         406 AA.
AC   B7M1G0;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Succinylornithine transaminase {ECO:0000255|HAMAP-Rule:MF_01173};
DE            EC=2.6.1.81 {ECO:0000255|HAMAP-Rule:MF_01173};
DE   AltName: Full=Succinylornithine aminotransferase {ECO:0000255|HAMAP-Rule:MF_01173};
GN   Name=astC {ECO:0000255|HAMAP-Rule:MF_01173};
GN   Synonyms=argM {ECO:0000255|HAMAP-Rule:MF_01173};
GN   OrderedLocusNames=ECIAI1_1809;
OS   Escherichia coli O8 (strain IAI1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585034;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IAI1;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
CC   -!- FUNCTION: Catalyzes the transamination of N(2)-succinylornithine and
CC       alpha-ketoglutarate into N(2)-succinylglutamate semialdehyde and
CC       glutamate. Can also act as an acetylornithine aminotransferase.
CC       {ECO:0000255|HAMAP-Rule:MF_01173}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + N(2)-succinyl-L-ornithine = L-glutamate + N-
CC         succinyl-L-glutamate 5-semialdehyde; Xref=Rhea:RHEA:16953,
CC         ChEBI:CHEBI:16810, ChEBI:CHEBI:29985, ChEBI:CHEBI:58514,
CC         ChEBI:CHEBI:58520; EC=2.6.1.81; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01173};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01173};
CC   -!- PATHWAY: Amino-acid degradation; L-arginine degradation via AST
CC       pathway; L-glutamate and succinate from L-arginine: step 3/5.
CC       {ECO:0000255|HAMAP-Rule:MF_01173}.
CC   -!- SIMILARITY: Belongs to the class-III pyridoxal-phosphate-dependent
CC       aminotransferase family. AstC subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_01173}.
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DR   EMBL; CU928160; CAQ98665.1; -; Genomic_DNA.
DR   RefSeq; WP_000081983.1; NC_011741.1.
DR   AlphaFoldDB; B7M1G0; -.
DR   SMR; B7M1G0; -.
DR   GeneID; 66674357; -.
DR   KEGG; ecr:ECIAI1_1809; -.
DR   HOGENOM; CLU_016922_10_1_6; -.
DR   OMA; PFMVPTY; -.
DR   UniPathway; UPA00185; UER00281.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0043825; F:succinylornithine transaminase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006526; P:arginine biosynthetic process; IEA:UniProt.
DR   GO; GO:0019544; P:arginine catabolic process to glutamate; IEA:UniProtKB-UniRule.
DR   GO; GO:0019545; P:arginine catabolic process to succinate; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006593; P:ornithine catabolic process; IEA:InterPro.
DR   CDD; cd00610; OAT_like; 1.
DR   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 1.
DR   HAMAP; MF_01107; ArgD_aminotrans_3; 1.
DR   HAMAP; MF_01173; AstC_aminotrans_3; 1.
DR   InterPro; IPR017652; Ac/SucOrn_transaminase_bac.
DR   InterPro; IPR004636; AcOrn/SuccOrn_fam.
DR   InterPro; IPR005814; Aminotrans_3.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   InterPro; IPR026330; SOAT.
DR   Pfam; PF00202; Aminotran_3; 1.
DR   PIRSF; PIRSF000521; Transaminase_4ab_Lys_Orn; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   TIGRFAMs; TIGR03246; arg_catab_astC; 1.
DR   TIGRFAMs; TIGR00707; argD; 1.
DR   PROSITE; PS00600; AA_TRANSFER_CLASS_3; 1.
PE   3: Inferred from homology;
KW   Aminotransferase; Arginine metabolism; Pyridoxal phosphate; Transferase.
FT   CHAIN           1..406
FT                   /note="Succinylornithine transaminase"
FT                   /id="PRO_1000164380"
FT   MOD_RES         252
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01173"
SQ   SEQUENCE   406 AA;  43665 MW;  B18ED13644C21176 CRC64;
     MSQPITRENF DEWMIPVYAP APFIPVRGEG SRLWDQQGKE YIDFAGGIAV NALGHAHPEL
     REALNEQASK FWHTGNGYTN EPVLRLAKKL IDATFADRVF FCNSGAEANE AALKLARKFA
     HDRYGSHKSG IVAFKNAFHG RTLFTVSAGG QPAYSQDFAP LPADIRHAAY NDINSASALI
     DDSTCAVIVE PIQGEGGVVP ASNAFLQGLR ELCNRHNALL IFDEVQTGVG RTGELYAYMH
     YGVTPDLLTT AKALGGGFPV GALLATEECA RVMTVGTHGT TYGGNPLASA VAGKVLELIN
     TPEMLNGVKQ RHDWFVERLN TINHRYGLFS EVRGLGLLIG CVLNADYAGQ AKQISQEAAK
     AGVMVLIAGG NVVRFAPALN VSEEEVTTGL DRFAAACEHF VSRGSS