ID   SYFB_IDILO              Reviewed;         795 AA.
AC   Q5QXL8;
DT   24-MAY-2005, integrated into UniProtKB/Swiss-Prot.
DT   04-JAN-2005, sequence version 1.
DT   03-AUG-2022, entry version 109.
DE   RecName: Full=Phenylalanine--tRNA ligase beta subunit {ECO:0000255|HAMAP-Rule:MF_00283};
DE            EC=6.1.1.20 {ECO:0000255|HAMAP-Rule:MF_00283};
DE   AltName: Full=Phenylalanyl-tRNA synthetase beta subunit {ECO:0000255|HAMAP-Rule:MF_00283};
DE            Short=PheRS {ECO:0000255|HAMAP-Rule:MF_00283};
GN   Name=pheT {ECO:0000255|HAMAP-Rule:MF_00283}; OrderedLocusNames=IL1394;
OS   Idiomarina loihiensis (strain ATCC BAA-735 / DSM 15497 / L2-TR).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Idiomarinaceae; Idiomarina.
OX   NCBI_TaxID=283942;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-735 / DSM 15497 / L2-TR;
RX   PubMed=15596722; DOI=10.1073/pnas.0407638102;
RA   Hou S., Saw J.H., Lee K.S., Freitas T.A., Belisle C., Kawarabayasi Y.,
RA   Donachie S.P., Pikina A., Galperin M.Y., Koonin E.V., Makarova K.S.,
RA   Omelchenko M.V., Sorokin A., Wolf Y.I., Li Q.X., Keum Y.S., Campbell S.,
RA   Denery J., Aizawa S., Shibata S., Malahoff A., Alam M.;
RT   "Genome sequence of the deep-sea gamma-proteobacterium Idiomarina
RT   loihiensis reveals amino acid fermentation as a source of carbon and
RT   energy.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:18036-18041(2004).
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_00283};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00283};
CC       Note=Binds 2 magnesium ions per tetramer. {ECO:0000255|HAMAP-
CC       Rule:MF_00283};
CC   -!- SUBUNIT: Tetramer of two alpha and two beta subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00283}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00283}.
CC   -!- SIMILARITY: Belongs to the phenylalanyl-tRNA synthetase beta subunit
CC       family. Type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_00283}.
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DR   EMBL; AE017340; AAV82234.1; -; Genomic_DNA.
DR   RefSeq; WP_011234640.1; NC_006512.1.
DR   AlphaFoldDB; Q5QXL8; -.
DR   SMR; Q5QXL8; -.
DR   STRING; 283942.IL1394; -.
DR   EnsemblBacteria; AAV82234; AAV82234; IL1394.
DR   KEGG; ilo:IL1394; -.
DR   eggNOG; COG0072; Bacteria.
DR   eggNOG; COG0073; Bacteria.
DR   HOGENOM; CLU_016891_0_0_6; -.
DR   OMA; ISYNWLK; -.
DR   OrthoDB; 53568at2; -.
DR   Proteomes; UP000001171; 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:UniProtKB-KW.
DR   GO; GO:0006432; P:phenylalanyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00769; PheRS_beta_core; 1.
DR   CDD; cd02796; tRNA_bind_bactPheRS; 1.
DR   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.30.70.380; -; 1.
DR   Gene3D; 3.30.930.10; -; 1.
DR   Gene3D; 3.50.40.10; -; 1.
DR   HAMAP; MF_00283; Phe_tRNA_synth_beta1; 1.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR005146; B3/B4_tRNA-bd.
DR   InterPro; IPR009061; DNA-bd_dom_put_sf.
DR   InterPro; IPR005121; Fdx_antiC-bd.
DR   InterPro; IPR036690; Fdx_antiC-bd_sf.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR045060; Phe-tRNA-ligase_IIc_bsu.
DR   InterPro; IPR004532; Phe-tRNA-ligase_IIc_bsu_bact.
DR   InterPro; IPR020825; Phe-tRNA_synthase-like_B3/B4.
DR   InterPro; IPR041616; PheRS_beta_core.
DR   InterPro; IPR002547; tRNA-bd_dom.
DR   InterPro; IPR033714; tRNA_bind_bactPheRS.
DR   InterPro; IPR005147; tRNA_synthase_B5-dom.
DR   PANTHER; PTHR10947; PTHR10947; 1.
DR   Pfam; PF03483; B3_4; 1.
DR   Pfam; PF03484; B5; 1.
DR   Pfam; PF03147; FDX-ACB; 1.
DR   Pfam; PF01588; tRNA_bind; 1.
DR   Pfam; PF17759; tRNA_synthFbeta; 1.
DR   SMART; SM00873; B3_4; 1.
DR   SMART; SM00874; B5; 1.
DR   SMART; SM00896; FDX-ACB; 1.
DR   SUPFAM; SSF46955; SSF46955; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF54991; SSF54991; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00472; pheT_bact; 1.
DR   PROSITE; PS51483; B5; 1.
DR   PROSITE; PS51447; FDX_ACB; 1.
DR   PROSITE; PS50886; TRBD; 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; RNA-binding; tRNA-binding.
FT   CHAIN           1..795
FT                   /note="Phenylalanine--tRNA ligase beta subunit"
FT                   /id="PRO_0000126895"
FT   DOMAIN          39..148
FT                   /note="tRNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   DOMAIN          401..476
FT                   /note="B5"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   DOMAIN          701..794
FT                   /note="FDX-ACB"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   BINDING         454
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with alpha subunit"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   BINDING         460
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with alpha subunit"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   BINDING         463
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with alpha subunit"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   BINDING         464
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="shared with alpha subunit"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
SQ   SEQUENCE   795 AA;  86986 MW;  EAC0C35B72460247 CRC64;
     MKFSEQWLRE WVNPDISSHE LSEQLSMAGL EVDAVEPVAD EFHTVVVGEV IECGPHPDAD
     KLQVTKVNVG EDEPVDIVCG ASNCRLGIKV AVAKVGAVLP GDFKIKKAKL RGQPSNGMLC
     SFKELGLIDE HDGIIELPAD APVGEDYRKY LQLDDNSIDI DLTPNRGDCL SIRGIAREVG
     VLNRLDVTVP ESNEVTASIE DTLSISLSAA EQCPRYLGRV IKGVDLTRPT PVWMTEKLRR
     SGIRSIDPVV DVTNYVLLEL GHPMHAFDLD SLEGNIDVRL AKPKEQLTLL DEQLVELDED
     TLVIADEKKA LAMAGVYGGK NSGVTESSKN IFLESAFFAP DAILGKARRY GLHTDASHRY
     ERGVDPQLQR TAMERATELL LAICGGEAGP VTEAVAEAFL PKRDGITLRA CRLAKVLGVS
     IANDNVTEIL ERLGFDVSFD GEQWQVGIPS YRFDLSIEED LIEEVARVYG YNSIQAAPPA
     AQLRMTERKE SQLSTHQLVD AMVSRGYQEA ITYSFVDPKH QALMFDETAA LTLPHPISVD
     MSSMRVSLWP GLVGAVAHNQ KRQQSVLAFV ETGLRFIPDE SAENGVRQEA VISGIRSGKA
     HSEHWSEGDR PVDFYDVKGD VEALLAQTGN AAAFRFVASQ NPALHPGQSA AIYRGSEKVG
     DIGALHPKFD KALGLNQRTF VFELALSVVT ERPLPQAKPV SRYPSIRRDL AVVVDKDLAA
     GELIAAMENV GVKQLVDLNL FDVYIGDGVA EGKQSLALSV TLQDSDKTLE EAEVTELMTK
     FIETLKSEFN ATLRD