ID   HIS8_BUCAP              Reviewed;         355 AA.
AC   Q9ZHE5;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   27-MAR-2024, entry version 136.
DE   RecName: Full=Histidinol-phosphate aminotransferase;
DE            EC=2.6.1.9;
DE   AltName: Full=Imidazole acetol-phosphate transaminase;
GN   Name=hisC; OrderedLocusNames=BUsg_094;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9767718; DOI=10.1007/s002849900392;
RA   Clark M.A., Baumann L., Baumann P.;
RT   "Buchnera aphidicola (Aphid endosymbiont) contains genes encoding enzymes
RT   of histidine biosynthesis.";
RL   Curr. Microbiol. 37:356-358(1998).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + L-histidinol phosphate = 3-(imidazol-4-yl)-2-
CC         oxopropyl phosphate + L-glutamate; Xref=Rhea:RHEA:23744,
CC         ChEBI:CHEBI:16810, ChEBI:CHEBI:29985, ChEBI:CHEBI:57766,
CC         ChEBI:CHEBI:57980; EC=2.6.1.9;
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000250};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 7/9.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the class-II pyridoxal-phosphate-dependent
CC       aminotransferase family. Histidinol-phosphate aminotransferase
CC       subfamily. {ECO:0000305}.
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DR   EMBL; AF067228; AAC97356.1; -; Genomic_DNA.
DR   EMBL; AE013218; AAM67664.1; -; Genomic_DNA.
DR   RefSeq; WP_011053630.1; NC_004061.1.
DR   AlphaFoldDB; Q9ZHE5; -.
DR   SMR; Q9ZHE5; -.
DR   STRING; 198804.BUsg_094; -.
DR   GeneID; 75259030; -.
DR   KEGG; bas:BUsg_094; -.
DR   eggNOG; COG0079; Bacteria.
DR   HOGENOM; CLU_017584_3_1_6; -.
DR   UniPathway; UPA00031; UER00012.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0004400; F:histidinol-phosphate transaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00609; AAT_like; 1.
DR   Gene3D; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1.
DR   Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR   HAMAP; MF_01023; HisC_aminotrans_2; 1.
DR   InterPro; IPR001917; Aminotrans_II_pyridoxalP_BS.
DR   InterPro; IPR004839; Aminotransferase_I/II.
DR   InterPro; IPR005861; HisP_aminotrans.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   NCBIfam; TIGR01141; hisC; 1.
DR   PANTHER; PTHR42885:SF2; HISTIDINOL-PHOSPHATE AMINOTRANSFERASE; 1.
DR   PANTHER; PTHR42885; HISTIDINOL-PHOSPHATE AMINOTRANSFERASE-RELATED; 1.
DR   Pfam; PF00155; Aminotran_1_2; 1.
DR   SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR   PROSITE; PS00599; AA_TRANSFER_CLASS_2; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aminotransferase; Histidine biosynthesis;
KW   Pyridoxal phosphate; Transferase.
FT   CHAIN           1..355
FT                   /note="Histidinol-phosphate aminotransferase"
FT                   /id="PRO_0000153333"
FT   MOD_RES         214
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   355 AA;  40474 MW;  C919301FE84D6DC8 CRC64;
     MTANINKLAR KNIQKLNPYQ SARRIGGKGD TWLNANESPI SVPFKGKVKV FNRYPECQPN
     NLLSSYANYV GLLNNQILVT RGADEGIELL IKAFCEPGKD AIIYCPPTYD MYAINAKIAN
     VEIKEIPTFK NTWKIDLLNI RSNLNKVKLI YICNPNNPTG NIVSQEDLKS LLKVTLGQSL
     VIIDEAYIEF SPKNSMVNYL KTFPNLIILR TLSKAFALAG IRCGFTLAQK EVIDILHKVI
     SPYPISTLIA DIAVQSLEKK AIDDMKNRVL KLNMNRIWLI DELKKISCVK KVFDSHANYI
     LVEFYMFKKI FQSLWQKGII LRNQNHKNNL KNCLRISIGS KSECMRLVQE LKNFI
//