ID   HIS8_ECOSM              Reviewed;         356 AA.
AC   B1LP20;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   04-NOV-2026, entry version 93.
DE   RecName: Full=Histidinol-phosphate aminotransferase {ECO:0000255|HAMAP-Rule:MF_01023};
DE            EC=2.6.1.9 {ECO:0000255|HAMAP-Rule:MF_01023};
DE   AltName: Full=Imidazole acetol-phosphate transaminase {ECO:0000255|HAMAP-Rule:MF_01023};
GN   Name=hisC {ECO:0000255|HAMAP-Rule:MF_01023};
GN   OrderedLocusNames=EcSMS35_1039;
OS   Escherichia coli (strain SMS-3-5 / SECEC).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Enterobacterales; Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=439855;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SMS-3-5 / SECEC;
RX   PubMed=18708504; DOI=10.1128/jb.00661-08;
RA   Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA   Ravel J., Stepanauskas R.;
RT   "Insights into the environmental resistance gene pool from the genome
RT   sequence of the multidrug-resistant environmental isolate Escherichia coli
RT   SMS-3-5.";
RL   J. Bacteriol. 190:6779-6794(2008).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-histidinol phosphate + 2-oxoglutarate = 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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01023};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01023};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 7/9.
CC       {ECO:0000255|HAMAP-Rule:MF_01023}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01023}.
CC   -!- SIMILARITY: Belongs to the class-II pyridoxal-phosphate-dependent
CC       aminotransferase family. Histidinol-phosphate aminotransferase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01023}.
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DR   EMBL; CP000970; ACB19219.1; -; Genomic_DNA.
DR   RefSeq; WP_000108926.1; NC_010498.1.
DR   AlphaFoldDB; B1LP20; -.
DR   SMR; B1LP20; -.
DR   KEGG; ecm:EcSMS35_1039; -.
DR   HOGENOM; CLU_017584_3_1_6; -.
DR   OMA; AAEMNRY; -.
DR   UniPathway; UPA00031; UER00012.
DR   GO; GO:0004400; F:L-histidinol-phosphate:2-oxoglutarate transaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0000105; P:L-histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00609; AAT_like; 1.
DR   FunFam; 3.40.640.10:FF:000032; Histidinol-phosphate aminotransferase; 1.
DR   FunFam; 3.90.1150.10:FF:000042; Histidinol-phosphate aminotransferase; 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_large.
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..356
FT                   /note="Histidinol-phosphate aminotransferase"
FT                   /id="PRO_1000135398"
FT   MOD_RES         214
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01023"
SQ   SEQUENCE   356 AA;  39365 MW;  50EFE08542448B23 CRC64;
     MSTVTITDLA RENVRNLTPY QSARRLGGNG DVWLNANEYP TAVEFQLTQQ TLNRYPECQP
     KAVIENYAQY AGVKAEQVLV SRGADEGIEL LIRAFCEPGK DAILYCPPTY GMYSVSAETI
     GVECRTVPTL KNWQLDLQGI SDKLDGVKVV YVCSPNNPTG QLINPQDFRT LLELTRGKAI
     VVADEAYIEF CPQASLAGWL AEYPHLAILR TLSKAFALAG LRCGFTLANE EVINLLMKVI
     APYPLSTPVA DIAAQALSPQ GIVAMRERVA QIIAEREYLM AALKEIPCVE QVFDSETNYI
     LARFKASSAV FKSLWDQGII LRDQNKQPSL SGCLRITVGT REESQRVIDA LRAEQV
//