ID   SYP_PELUB               Reviewed;         444 AA.
AC   Q4FM73;
DT   05-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 95.
DE   RecName: Full=Proline--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_01570};
DE            EC=6.1.1.15 {ECO:0000255|HAMAP-Rule:MF_01570};
DE   AltName: Full=Prolyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_01570};
DE            Short=ProRS {ECO:0000255|HAMAP-Rule:MF_01570};
GN   Name=proS {ECO:0000255|HAMAP-Rule:MF_01570}; OrderedLocusNames=SAR11_0902;
OS   Pelagibacter ubique (strain HTCC1062).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Pelagibacterales;
OC   Pelagibacteraceae; Candidatus Pelagibacter.
OX   NCBI_TaxID=335992;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HTCC1062;
RX   PubMed=16109880; DOI=10.1126/science.1114057;
RA   Giovannoni S.J., Tripp H.J., Givan S., Podar M., Vergin K.L., Baptista D.,
RA   Bibbs L., Eads J., Richardson T.H., Noordewier M., Rappe M.S., Short J.M.,
RA   Carrington J.C., Mathur E.J.;
RT   "Genome streamlining in a cosmopolitan oceanic bacterium.";
RL   Science 309:1242-1245(2005).
CC   -!- FUNCTION: Catalyzes the attachment of proline to tRNA(Pro) in a two-
CC       step reaction: proline is first activated by ATP to form Pro-AMP and
CC       then transferred to the acceptor end of tRNA(Pro). {ECO:0000255|HAMAP-
CC       Rule:MF_01570}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-proline + tRNA(Pro) = AMP + diphosphate + L-prolyl-
CC         tRNA(Pro); Xref=Rhea:RHEA:14305, Rhea:RHEA-COMP:9700, Rhea:RHEA-
CC         COMP:9702, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:60039,
CC         ChEBI:CHEBI:78442, ChEBI:CHEBI:78532, ChEBI:CHEBI:456215;
CC         EC=6.1.1.15; Evidence={ECO:0000255|HAMAP-Rule:MF_01570};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01570}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01570}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       ProS type 2 subfamily. {ECO:0000255|HAMAP-Rule:MF_01570}.
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DR   EMBL; CP000084; AAZ21716.1; -; Genomic_DNA.
DR   RefSeq; WP_011282024.1; NC_007205.1.
DR   AlphaFoldDB; Q4FM73; -.
DR   SMR; Q4FM73; -.
DR   STRING; 335992.SAR11_0902; -.
DR   EnsemblBacteria; AAZ21716; AAZ21716; SAR11_0902.
DR   GeneID; 66295396; -.
DR   KEGG; pub:SAR11_0902; -.
DR   eggNOG; COG0442; Bacteria.
DR   HOGENOM; CLU_016739_4_2_5; -.
DR   OMA; NCDYAAN; -.
DR   OrthoDB; 665824at2; -.
DR   Proteomes; UP000002528; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004827; F:proline-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006433; P:prolyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00779; ProRS_core_prok; 1.
DR   Gene3D; 3.30.930.10; -; 1.
DR   Gene3D; 3.40.50.800; -; 1.
DR   HAMAP; MF_01570; Pro_tRNA_synth_type2; 1.
DR   InterPro; IPR002314; aa-tRNA-synt_IIb.
DR   InterPro; IPR006195; aa-tRNA-synth_II.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR004154; Anticodon-bd.
DR   InterPro; IPR036621; Anticodon-bd_dom_sf.
DR   InterPro; IPR002316; Pro-tRNA-ligase_IIa.
DR   InterPro; IPR004500; Pro-tRNA-synth_IIa_bac-type.
DR   InterPro; IPR023716; Prolyl-tRNA_ligase_IIa_type2.
DR   InterPro; IPR033730; ProRS_core_prok.
DR   Pfam; PF03129; HGTP_anticodon; 1.
DR   Pfam; PF00587; tRNA-synt_2b; 1.
DR   PRINTS; PR01046; TRNASYNTHPRO.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00409; proS_fam_II; 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..444
FT                   /note="Proline--tRNA ligase"
FT                   /id="PRO_0000248905"
SQ   SEQUENCE   444 AA;  51212 MW;  9EDC97ED19141968 CRC64;
     MYISKSFIPI LKNNPSEAKI KSHQLMLRVG MIKQSSAGIY SWLPLGFKVM KKIEQIVREE
     QNKIGAQEIL MPTIQPSDIW KESGRYDDYG DEMLRIKDRQ GREMLYGPTN EELVTDIFRS
     SVKSYKSLPQ LLYHIQWKFR DEVRPRFGIM RGREFYMKDA YSFDVNDEDA TFSYNKFFFS
     YLKTFKRLEL SAIPMAADTG PIGGNLSHEF IILADTGESK IFTDKRVFDL GSEGTVLDRQ
     SLQDLRKKYE QYYAVADEKF NKNEFEEKVS EENRLITKGI EVGHIFYFGD KYSKALNAAV
     DLPGGKKDFV KMGSYGIGVS RLVGAIIEAK YDQKDEIMKW PFSVAPYELA IIPMINKNDT
     SALDKANKLF KHFESKNIDT IIDDMDENLS SKIKKFNLIG VPYQIILGKN SEDNLLEFKE
     IGKDPKSLTL DQITQILTEQ KLKN