ID   HIS8_BUCDN              Reviewed;         363 AA.
AC   Q84I53;
DT   26-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 71.
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};
OS   Buchnera aphidicola subsp. Diuraphis noxia.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=118101;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Moran N.A., Mira A.;
RT   "Levels of selection on genes of mutualistic endosymbionts.";
RL   Submitted (JAN-2002) to the EMBL/GenBank/DDBJ databases.
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; 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; AF465530; AAO33045.1; -; Genomic_DNA.
DR   RefSeq; WP_075433162.1; NZ_CP013259.1.
DR   AlphaFoldDB; Q84I53; -.
DR   SMR; Q84I53; -.
DR   STRING; 118101.ATN01_00495; -.
DR   OrthoDB; 1248286at2; -.
DR   UniPathway; UPA00031; UER00012.
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   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 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   Pfam; PF00155; Aminotran_1_2; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   TIGRFAMs; TIGR01141; hisC; 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..363
FT                   /note="Histidinol-phosphate aminotransferase"
FT                   /id="PRO_0000153331"
FT   MOD_RES         215
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01023"
SQ   SEQUENCE   363 AA;  41792 MW;  40C58A3DA9348A9A CRC64;
     MINSLIKLAR INVQKLQPYQ SARRIGGQHG DVWLNANESP VSVELSFKKK LLNRYPECQP
     IDLISAYADY VRLSTNQILV TRGADEGIEL LIRAFCESGK DAIIYCPPTY DMYRVNAEIY
     NIKYKEVPTI KNTWQLDLLN IKLNLNSVKL IYICNPNNPT GSTCSKKDLF DLLEMTLNTS
     LVVVDEAYIE FLPKESMTLY LKKYPNLVIL RTLSKAFALA GIRCGFVLAQ KEIINILNKI
     ISPYPISIPT ASIALESLHK NYIKLMQNRV LDLNANRVWL INKLKKISSV KKIFQSNTNY
     ILVQFFMSEE IFQMLWEKGI IVRNQDHKIN LKQCLRITVG THLECSRLIE EIKFFSKKYL
     KGV