ID   SYFA_ENTBH              Reviewed;         488 AA.
AC   B7XI98;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 48.
DE   RecName: Full=Probable phenylalanine--tRNA ligase alpha subunit;
DE            EC=6.1.1.20;
DE   AltName: Full=Phenylalanyl-tRNA synthetase alpha subunit;
DE            Short=PheRS;
GN   ORFNames=EBI_22775;
OS   Enterocytozoon bieneusi (strain H348) (Microsporidian parasite).
OC   Eukaryota; Fungi; Fungi incertae sedis; Microsporidia; Enterocytozoonidae;
OC   Enterocytozoon.
OX   NCBI_TaxID=481877;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=H348;
RX   PubMed=18060071; DOI=10.1371/journal.pone.0001277;
RA   Corradi N., Akiyoshi D.E., Morrison H.G., Feng X., Weiss L.M., Tzipori S.,
RA   Keeling P.J.;
RT   "Patterns of genome evolution among the microsporidian parasites
RT   Encephalitozoon cuniculi, Antonospora locustae and Enterocytozoon
RT   bieneusi.";
RL   PLoS ONE 2:E1277-E1277(2007).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=H348;
RX   PubMed=19132089; DOI=10.1371/journal.ppat.1000261;
RA   Akiyoshi D.E., Morrison H.G., Lei S., Feng X., Zhang Q., Corradi N.,
RA   Mayanja H., Tumwine J.K., Keeling P.J., Weiss L.M., Tzipori S.;
RT   "Genomic survey of the non-cultivatable opportunistic human pathogen,
RT   Enterocytozoon bieneusi.";
RL   PLoS Pathog. 5:E1000261-E1000261(2009).
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   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:A5K9S0};
CC   -!- SUBUNIT: Tetramer of two alpha and two beta subunits. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       Phe-tRNA synthetase alpha subunit type 2 subfamily. {ECO:0000305}.
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DR   EMBL; ABGB01000017; EED44391.1; -; Genomic_DNA.
DR   RefSeq; XP_002649726.1; XM_002649680.1.
DR   AlphaFoldDB; B7XI98; -.
DR   SMR; B7XI98; -.
DR   STRING; 481877.B7XI98; -.
DR   EnsemblFungi; EED44391; EED44391; EBI_22775.
DR   VEuPathDB; MicrosporidiaDB:EBI_22775; -.
DR   HOGENOM; CLU_025086_2_2_1; -.
DR   InParanoid; B7XI98; -.
DR   Proteomes; UP000001742; Unassembled WGS sequence.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004826; F:phenylalanine-tRNA ligase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000049; F:tRNA binding; IEA:InterPro.
DR   GO; GO:0006432; P:phenylalanyl-tRNA aminoacylation; IEA:InterPro.
DR   Gene3D; 3.30.930.10; -; 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; IPR002319; Phenylalanyl-tRNA_Synthase.
DR   Pfam; PF01409; tRNA-synt_2d; 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;
KW   Reference proteome.
FT   CHAIN           1..488
FT                   /note="Probable phenylalanine--tRNA ligase alpha subunit"
FT                   /id="PRO_0000388408"
FT   REGION          1..146
FT                   /note="Contains the major tRNA-Phe binding sites"
FT                   /evidence="ECO:0000250"
FT   BINDING         315
FT                   /ligand="L-phenylalanine"
FT                   /ligand_id="ChEBI:CHEBI:58095"
FT                   /evidence="ECO:0000250|UniProtKB:Q9Y285"
FT   BINDING         363..365
FT                   /ligand="L-phenylalanine"
FT                   /ligand_id="ChEBI:CHEBI:58095"
FT                   /evidence="ECO:0000250|UniProtKB:Q9Y285"
FT   BINDING         403
FT                   /ligand="L-phenylalanine"
FT                   /ligand_id="ChEBI:CHEBI:58095"
FT                   /evidence="ECO:0000250|UniProtKB:Q9Y285"
FT   BINDING         405
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with beta subunit"
FT                   /evidence="ECO:0000250|UniProtKB:A5K9S0"
FT   BINDING         429
FT                   /ligand="L-phenylalanine"
FT                   /ligand_id="ChEBI:CHEBI:58095"
FT                   /evidence="ECO:0000250|UniProtKB:Q9Y285"
SQ   SEQUENCE   488 AA;  56356 MW;  3B7A94C0FD892AA9 CRC64;
     MSIEQDILNL LAVKNIISSD ELNCKSTDIH GVLLSLSSKK VVDYTIIPIV ERVLTPQGRQ
     VEKEGSQEYN LITMLMKSNL SIDNIDKTTL KYAFKNKWIK MENNQIVLSG TTIQDITQKL
     LRNLDSISKD EFEELKKRKL VDINKKNIYK ITRGENFNIE QKDIINELTT QNLFNISDTS
     LLKKYNFNLS KVSRFFGSLH PLTKIKSEFK RIFLEMGFSE MNTGKYVESS FWNFDSLFQP
     QNHPSREIQD TFFLKVPRLN DLNDVDSQYI NRVESIHSST SIPVDEGYDK CYSKGHNNVW
     SVAEAKKNIL RTHTTAISSQ MLYKLAQSNL KAEIKNYNIK LFSIDKVFRN ETVDATHLAE
     FHQVEGLISG ENLGIKELIH TIKTFFTKLN IHQIRFKPAF NPYTEPSMEI FGYHPQLKKW
     IELGNSGIFR PEMLLPMGFP KNVVVIAWGL SLERPAMIKL GLKNIRDLVG HKISVEFIRD
     SPVIFMNK