ID   SYFA_CHLAB              Reviewed;         341 AA.
AC   Q5L5A8;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   21-JUN-2005, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Phenylalanine--tRNA ligase alpha subunit {ECO:0000255|HAMAP-Rule:MF_00281};
DE            EC=6.1.1.20 {ECO:0000255|HAMAP-Rule:MF_00281};
DE   AltName: Full=Phenylalanyl-tRNA synthetase alpha subunit {ECO:0000255|HAMAP-Rule:MF_00281};
DE            Short=PheRS {ECO:0000255|HAMAP-Rule:MF_00281};
GN   Name=pheS {ECO:0000255|HAMAP-Rule:MF_00281}; OrderedLocusNames=CAB736;
OS   Chlamydia abortus (strain DSM 27085 / S26/3) (Chlamydophila abortus).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=218497;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 27085 / S26/3;
RX   PubMed=15837807; DOI=10.1101/gr.3684805;
RA   Thomson N.R., Yeats C., Bell K., Holden M.T.G., Bentley S.D.,
RA   Livingstone M., Cerdeno-Tarraga A.-M., Harris B., Doggett J., Ormond D.,
RA   Mungall K., Clarke K., Feltwell T., Hance Z., Sanders M., Quail M.A.,
RA   Price C., Barrell B.G., Parkhill J., Longbottom D.;
RT   "The Chlamydophila abortus genome sequence reveals an array of variable
RT   proteins that contribute to interspecies variation.";
RL   Genome Res. 15:629-640(2005).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-phenylalanine + tRNA(Phe) = AMP + diphosphate + H(+) +
CC         L-phenylalanyl-tRNA(Phe); Xref=Rhea:RHEA:19413, Rhea:RHEA-COMP:9668,
CC         Rhea:RHEA-COMP:9699, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:58095, ChEBI:CHEBI:78442,
CC         ChEBI:CHEBI:78531, ChEBI:CHEBI:456215; EC=6.1.1.20;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00281};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00281};
CC       Note=Binds 2 magnesium ions per tetramer. {ECO:0000255|HAMAP-
CC       Rule:MF_00281};
CC   -!- SUBUNIT: Tetramer of two alpha and two beta subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00281}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00281}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       Phe-tRNA synthetase alpha subunit type 1 subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00281}.
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DR   EMBL; CR848038; CAH64183.1; -; Genomic_DNA.
DR   RefSeq; WP_011097303.1; NC_004552.2.
DR   AlphaFoldDB; Q5L5A8; -.
DR   SMR; Q5L5A8; -.
DR   EnsemblBacteria; CAH64183; CAH64183; CAB736.
DR   KEGG; cab:CAB736; -.
DR   eggNOG; COG0016; Bacteria.
DR   HOGENOM; CLU_025086_0_1_0; -.
DR   OMA; DWHNFTA; -.
DR   OrthoDB; 469058at2; -.
DR   Proteomes; UP000001012; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004826; F:phenylalanine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:InterPro.
DR   GO; GO:0006432; P:phenylalanyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.930.10; -; 1.
DR   HAMAP; MF_00281; Phe_tRNA_synth_alpha1; 1.
DR   InterPro; IPR006195; aa-tRNA-synth_II.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR004529; Phe-tRNA-synth_IIc_asu.
DR   InterPro; IPR004530; Phe-tRNA-synth_IIc_mito.
DR   InterPro; IPR004188; Phe-tRNA_ligase_II_N.
DR   InterPro; IPR022911; Phe_tRNA_ligase_alpha1_bac.
DR   InterPro; IPR002319; Phenylalanyl-tRNA_Synthase.
DR   InterPro; IPR010978; tRNA-bd_arm.
DR   PANTHER; PTHR11538:SF41; PTHR11538:SF41; 1.
DR   Pfam; PF02912; Phe_tRNA-synt_N; 1.
DR   Pfam; PF01409; tRNA-synt_2d; 1.
DR   SUPFAM; SSF46589; SSF46589; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00468; pheS; 1.
DR   PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Magnesium;
KW   Metal-binding; Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..341
FT                   /note="Phenylalanine--tRNA ligase alpha subunit"
FT                   /id="PRO_0000231973"
FT   BINDING         256
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with beta subunit"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00281"
SQ   SEQUENCE   341 AA;  39033 MW;  F3CAFD6E71218F4E CRC64;
     MAIQEELEAT KQQFCAELSQ VNSSKDLFDL KVRYLGKKGL FRCFADKLRE CPADQKALMG
     ASINDCKTYI ENLIRDKNHA ILLAEEAAEF LREKIDITLP GEPHCPGGKH IVKKVLDDVV
     DIFVHLGFCV REAPNIESEE NNFSLLNFEE DHPARQMHDT FYLDPKTVLR THTSNVQVRE
     LRKGQPPIKV VAPGLCFRNE DISARSHVIF HQVEAFYLDR YVTLSDLTAM LTEFYHTFFE
     REIELRLRHS YFPFVEPGIE VDVSCECRQA GCSLCKHTGW LEVAGAGMIH PQVLRNSGFD
     PEIYTGYAVG MGIERLAMLQ HGISDIRLFC ENDLRFLQQF S