ID   SYFB_PROMP              Reviewed;         821 AA.
AC   Q7V1J8;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 110.
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=PMM0871;
OS   Prochlorococcus marinus subsp. pastoris (strain CCMP1986 / NIES-2087 /
OS   MED4).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59919;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CCMP1986 / NIES-2087 / MED4;
RX   PubMed=12917642; DOI=10.1038/nature01947;
RA   Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA   Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA   Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA   Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA   Chisholm S.W.;
RT   "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT   differentiation.";
RL   Nature 424:1042-1047(2003).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; BX548174; CAE19330.1; -; Genomic_DNA.
DR   RefSeq; WP_011132504.1; NC_005072.1.
DR   AlphaFoldDB; Q7V1J8; -.
DR   SMR; Q7V1J8; -.
DR   STRING; 59919.PMM0871; -.
DR   PRIDE; Q7V1J8; -.
DR   EnsemblBacteria; CAE19330; CAE19330; PMM0871.
DR   KEGG; pmm:PMM0871; -.
DR   eggNOG; COG0072; Bacteria.
DR   HOGENOM; CLU_016891_0_0_3; -.
DR   OMA; ISYNWLK; -.
DR   OrthoDB; 53568at2; -.
DR   Proteomes; UP000001026; 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; RNA-binding;
KW   tRNA-binding.
FT   CHAIN           1..821
FT                   /note="Phenylalanine--tRNA ligase beta subunit"
FT                   /id="PRO_0000126931"
FT   DOMAIN          39..149
FT                   /note="tRNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   DOMAIN          414..507
FT                   /note="B5"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   DOMAIN          727..820
FT                   /note="FDX-ACB"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00283"
FT   BINDING         485
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         491
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         494
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         495
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   821 AA;  92758 MW;  CE29687F2AAEA98E CRC64;
     MKVSQNWLKS LVEINTTAHD LSEKLSIGGF EVESLVDCSE NVKGIVLGKV LSVVKHENSD
     KLSICIVDIG RSNPLQIVCG AKNVKQNIYV YVATVGTHLS AINLTIKKSE IRGVSSEGMI
     CSLEELGIED TSEGIAIIDE DIALNHNLGT SGAELLDLND YIYDLAITAN RPDGMSVVGI
     AREISALLET KLNFPGLKTR YKTNVYKNFN LCPEAISKNC LYSISNIESV NGKQLSPGWL
     KDRLDKSGIK SINLLVDITN YILLEQGQPL HAFDKDKLSN LIGRKVSYED FSVRKANNNE
     SLLCLNGENY KLNENITIIA CDDKPVAIAG VIGGLETAVN EDTSSIYLEG AVFNPVIIRK
     SSKVIGIRTE SSSRYEKGIS YKNTLDSVTR AINILEEYFN ITSPIINTST ELDLKKILIP
     LRRERIKKIL GPIVIRNENY ENNSKLEKRY LTDTEITEKL KLIGCTLNIK EYGWDVEIIP
     NRSQDLLREI DLIEEIARLI GYDMFDLNLP NPIKPGKLSS FQIALRKLKT GLIVNGFNEV
     LSYSLVPESK NNLIKISNPL LLETSCLRDN IWKEHINICN QNIKSGHEYC WIFEVGNIFH
     KKPDFSQEEI LNGAIYGNNK FEQWLGSNKD NNMTYYEARG KLKEALSILN LNIEDKPTDT
     IDFLHPGRSS RLFTEGNEVG YFGEIHPNLI SNKIALKKMY LFSLKINSIL QASTRKNKWI
     TVYKQFPTVP KMERDINFIF NKKYLVSEII SQIKKSGTKL LENVNLIDVY DDDSFGKEFI
     SYTFRLSYRD SEKTLLDSDI GYLHDSVVEI IEKKFSTKLR D