ID   HIS81_TRIV2             Reviewed;         350 AA.
AC   Q3M504;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2005, sequence version 1.
DT   25-MAY-2022, entry version 87.
DE   RecName: Full=Histidinol-phosphate aminotransferase 1 {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 1 {ECO:0000255|HAMAP-Rule:MF_01023};
GN   Name=hisC1 {ECO:0000255|HAMAP-Rule:MF_01023}; OrderedLocusNames=Ava_4334;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
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; CP000117; ABA23932.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3M504; -.
DR   SMR; Q3M504; -.
DR   STRING; 240292.Ava_4334; -.
DR   EnsemblBacteria; ABA23932; ABA23932; Ava_4334.
DR   KEGG; ava:Ava_4334; -.
DR   eggNOG; COG0079; Bacteria.
DR   HOGENOM; CLU_017584_3_0_3; -.
DR   OMA; IWLNANE; -.
DR   UniPathway; UPA00031; UER00012.
DR   Proteomes; UP000002533; 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   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..350
FT                   /note="Histidinol-phosphate aminotransferase 1"
FT                   /id="PRO_0000230203"
FT   MOD_RES         211
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01023"
SQ   SEQUENCE   350 AA;  38720 MW;  9B2007867C9065E8 CRC64;
     MTNYFRSNVE AMASYVPGEQ PPRGTQVIKL NSNENPYPPS PAALAALQDI DGEWLRRYPE
     PLGGEFREAA SKVLGVPSDW LIVGNGSDEI LSIVIRACTE PGRKVVYPMP TYVLYRTLTQ
     MQAADILEIP YQENNVLPVA ELIAADGAVT FIASPNSPSG HIVPNDDLRK LASELSGVLV
     IDEAYVDFAE ESALDLVQEY ENVILIRTLS KGYSLAGLRL GFGVGNPKLL DGLFKVKDSY
     NIDAIACKVA AVAITDQAYK NSCVAKVKAS RTQLTKDLKQ LGFHVWDSHG NFLLTKPPEG
     NAEYLYEKLK EQKILIRYFQ QPGLEDKLRI TVGTDEQNHI LVRALRDLLR