ID   SYH_BUCAI               Reviewed;         423 AA.
AC   P57375;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 115.
DE   RecName: Full=Histidine--tRNA ligase;
DE            EC=6.1.1.21;
DE   AltName: Full=Histidyl-tRNA synthetase;
DE            Short=HisRS;
GN   Name=hisS; OrderedLocusNames=BU288;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-histidine + tRNA(His) = AMP + diphosphate + H(+) + L-
CC         histidyl-tRNA(His); Xref=Rhea:RHEA:17313, Rhea:RHEA-COMP:9665,
CC         Rhea:RHEA-COMP:9689, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:57595, ChEBI:CHEBI:78442,
CC         ChEBI:CHEBI:78527, ChEBI:CHEBI:456215; EC=6.1.1.21;
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       {ECO:0000305}.
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DR   EMBL; BA000003; BAB12998.1; -; Genomic_DNA.
DR   RefSeq; NP_240112.1; NC_002528.1.
DR   RefSeq; WP_010896048.1; NC_002528.1.
DR   AlphaFoldDB; P57375; -.
DR   SMR; P57375; -.
DR   STRING; 107806.10038963; -.
DR   PRIDE; P57375; -.
DR   EnsemblBacteria; BAB12998; BAB12998; BAB12998.
DR   KEGG; buc:BU288; -.
DR   PATRIC; fig|107806.10.peg.298; -.
DR   eggNOG; COG0124; Bacteria.
DR   HOGENOM; CLU_025113_1_1_6; -.
DR   OMA; CDFDFIG; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004821; F:histidine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006427; P:histidyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00773; HisRS-like_core; 1.
DR   Gene3D; 3.30.930.10; -; 1.
DR   Gene3D; 3.40.50.800; -; 1.
DR   HAMAP; MF_00127; His_tRNA_synth; 1.
DR   InterPro; IPR006195; aa-tRNA-synth_II.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR036621; Anticodon-bd_dom_sf.
DR   InterPro; IPR015807; His-tRNA-ligase.
DR   InterPro; IPR041715; HisRS-like_core.
DR   InterPro; IPR004516; HisRS/HisZ.
DR   PANTHER; PTHR43707; PTHR43707; 1.
DR   Pfam; PF13393; tRNA-synt_His; 1.
DR   PIRSF; PIRSF001549; His-tRNA_synth; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00442; hisS; 1.
DR   PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..423
FT                   /note="Histidine--tRNA ligase"
FT                   /id="PRO_0000136126"
SQ   SEQUENCE   423 AA;  49800 MW;  F4CA944BA525F9F4 CRC64;
     MNKEIKSIRG MYDYFPKDLK IWNYIEIIFK EVLNSYCYLE IRLPILEKTE IFKRAIGNVT
     DVVEKEMYSF NDRKGNNLTL RPEGTVGCVR AIIQNNLLQK SNKFWYLGPM FRYERPQKGR
     YRQFYQLGAE VFGLDTEDID LEIIILTNRL WKRIGIDSFI TLEVNSIGSK IDRVQYKKEL
     VNFLKKREYL LDEDCKRRLY TNPLRILDSK NQDIQNLLKE APLLSEYISF SENNHFKNLC
     NMMNHHGIKY KCNPHLVRGL DYYNSTVFEW KSNKLGAQNT ICAGGRYDSL VQEMGGRKTP
     AIGFAIGIER LVLLVKSLKI FSEVIEESNV YIIFIGDNNK CHAINLSEEI RDLYPKLRIF
     INFLHQNLTK KIKNAISSLA RIIILIGDNE IKKGFFLVKD LKEKKEYHLL KKELILKIQE
     IFK