ID   AAT_PYRHO               Reviewed;         391 AA.
AC   O58489;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   03-AUG-2022, entry version 121.
DE   RecName: Full=Aspartate aminotransferase;
DE            Short=AspAT;
DE            EC=2.6.1.1;
DE   AltName: Full=Transaminase A;
GN   Name=aspC; OrderedLocusNames=PH0771;
OS   Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC
OS   100139 / OT-3).
OC   Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC   Pyrococcus.
OX   NCBI_TaxID=70601;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3;
RX   PubMed=9679194; DOI=10.1093/dnares/5.2.55;
RA   Kawarabayasi Y., Sawada M., Horikawa H., Haikawa Y., Hino Y., Yamamoto S.,
RA   Sekine M., Baba S., Kosugi H., Hosoyama A., Nagai Y., Sakai M., Ogura K.,
RA   Otsuka R., Nakazawa H., Takamiya M., Ohfuku Y., Funahashi T., Tanaka T.,
RA   Kudoh Y., Yamazaki J., Kushida N., Oguchi A., Aoki K., Yoshizawa T.,
RA   Nakamura Y., Robb F.T., Horikoshi K., Masuchi Y., Shizuya H., Kikuchi H.;
RT   "Complete sequence and gene organization of the genome of a hyper-
RT   thermophilic archaebacterium, Pyrococcus horikoshii OT3.";
RL   DNA Res. 5:55-76(1998).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + L-aspartate = L-glutamate + oxaloacetate;
CC         Xref=Rhea:RHEA:21824, ChEBI:CHEBI:16452, ChEBI:CHEBI:16810,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:29991; EC=2.6.1.1;
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000250};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the class-I pyridoxal-phosphate-dependent
CC       aminotransferase family. {ECO:0000305}.
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DR   EMBL; BA000001; BAA29863.1; -; Genomic_DNA.
DR   PIR; E71125; E71125.
DR   RefSeq; WP_010884863.1; NC_000961.1.
DR   AlphaFoldDB; O58489; -.
DR   SMR; O58489; -.
DR   STRING; 70601.3257180; -.
DR   EnsemblBacteria; BAA29863; BAA29863; BAA29863.
DR   GeneID; 1443098; -.
DR   KEGG; pho:PH0771; -.
DR   eggNOG; arCOG01130; Archaea.
DR   OMA; SVAMTGW; -.
DR   OrthoDB; 32104at2157; -.
DR   Proteomes; UP000000752; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004069; F:L-aspartate:2-oxoglutarate aminotransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0009058; P:biosynthetic process; IEA:InterPro.
DR   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 1.
DR   InterPro; IPR004839; Aminotransferase_I/II.
DR   InterPro; IPR004838; NHTrfase_class1_PyrdxlP-BS.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   Pfam; PF00155; Aminotran_1_2; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   PROSITE; PS00105; AA_TRANSFER_CLASS_1; 1.
PE   3: Inferred from homology;
KW   Aminotransferase; Cytoplasm; Pyridoxal phosphate; Transferase.
FT   CHAIN           1..391
FT                   /note="Aspartate aminotransferase"
FT                   /id="PRO_0000123861"
FT   BINDING         40
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000250"
FT   BINDING         176
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000250"
FT   BINDING         366
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         236
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   391 AA;  44565 MW;  C35FD73BD08FE4C1 CRC64;
     MREKRKYFIA ERVLLIKRSK IRELFERASK MEDVISLGIG EPDFDTPKNI KEAAKRALDE
     GWTHYTPNAG IPELREAVVE YYKKFYGIDI EVENVIITAG AYEGTYLAFE SLLERGDEVI
     IPDPAFVSYA EDAKVAEAKP VRIPLREENN FLPDPNELLE KISKNTRMIV INYPNNPTGA
     TLDKELAKTI ADIAEDYNIY ILSDEPYEHF IYEDAKHYPM IKFAPENTIL ANSFSKTFAM
     TGWRLGFVVA PSQVIKEMTK LHAYVIGNVA SFVQIAGIEA LRSEESWKAV EEMKKEYNER
     RKIVVKRLKN MPGIKVKEPK GAFYVFPNIS GTGMSSEKFS EWLLEKARVV VIPGTAFGRM
     GEGYVRISYA TSKEKLIEAM NRIEKALEGE K