ID   SYP_PROM1               Reviewed;         596 AA.
AC   A2C0W8;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=Proline--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_01569};
DE            EC=6.1.1.15 {ECO:0000255|HAMAP-Rule:MF_01569};
DE   AltName: Full=Prolyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_01569};
DE            Short=ProRS {ECO:0000255|HAMAP-Rule:MF_01569};
GN   Name=proS {ECO:0000255|HAMAP-Rule:MF_01569}; OrderedLocusNames=NATL1_05661;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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). As ProRS can
CC       inadvertently accommodate and process non-cognate amino acids such as
CC       alanine and cysteine, to avoid such errors it has two additional
CC       distinct editing activities against alanine. One activity is designated
CC       as 'pretransfer' editing and involves the tRNA(Pro)-independent
CC       hydrolysis of activated Ala-AMP. The other activity is designated
CC       'posttransfer' editing and involves deacylation of mischarged Ala-
CC       tRNA(Pro). The misacylated Cys-tRNA(Pro) is not edited by ProRS.
CC       {ECO:0000255|HAMAP-Rule:MF_01569}.
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_01569};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01569}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01569}.
CC   -!- DOMAIN: Consists of three domains: the N-terminal catalytic domain, the
CC       editing domain and the C-terminal anticodon-binding domain.
CC       {ECO:0000255|HAMAP-Rule:MF_01569}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       ProS type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_01569}.
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DR   EMBL; CP000553; ABM75128.1; -; Genomic_DNA.
DR   RefSeq; WP_011823304.1; NC_008819.1.
DR   AlphaFoldDB; A2C0W8; -.
DR   SMR; A2C0W8; -.
DR   STRING; 167555.NATL1_05661; -.
DR   EnsemblBacteria; ABM75128; ABM75128; NATL1_05661.
DR   KEGG; pme:NATL1_05661; -.
DR   eggNOG; COG0442; Bacteria.
DR   HOGENOM; CLU_016739_0_0_3; -.
DR   OMA; NCDYAAN; -.
DR   Proteomes; UP000002592; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0002161; F:aminoacyl-tRNA editing activity; IEA:InterPro.
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   Gene3D; 3.30.930.10; -; 2.
DR   Gene3D; 3.40.50.800; -; 1.
DR   HAMAP; MF_01569; Pro_tRNA_synth_type1; 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; IPR023717; Pro-tRNA-Synthase_IIa_type1.
DR   InterPro; IPR036754; YbaK/aa-tRNA-synt-asso_dom_sf.
DR   InterPro; IPR007214; YbaK/aa-tRNA-synth-assoc-dom.
DR   Pfam; PF03129; HGTP_anticodon; 1.
DR   Pfam; PF00587; tRNA-synt_2b; 1.
DR   Pfam; PF04073; tRNA_edit; 1.
DR   PRINTS; PR01046; TRNASYNTHPRO.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   SUPFAM; SSF55826; SSF55826; 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.
FT   CHAIN           1..596
FT                   /note="Proline--tRNA ligase"
FT                   /id="PRO_0000288365"
SQ   SEQUENCE   596 AA;  67643 MW;  4396EEDC7E78C307 CRC64;
     MRVSRLMLNT LRDVPSEADI ISHQLLVRGG YIKRITGGIY AYMPLLWKVL KKITSIVEEE
     LSTKGCLQTL LPQLQPSEIW ERSGRWKSYT QGEGIMFSLK DRQGKELGLG PTHEEVITQI
     ISQTIHSYKQ LPINIFQIQT KFRDEIRPRF GLMRSREFIM KDAYSFHANE NDLQSTYSDM
     RNAYQNIFTK CGLDFVCVDA DSGAIGGAAS QEFMVTAESG EDLILISSDG KYGANQEKAV
     SIIEEGNLLE PNKPSIIKTP NQKTIDELCN YNDFHPSQIV KVLAYLATCD DNKKYPVLVS
     IRGDQEINDI KLSNKISQEL KKNVLDIRII YNEDMQKQGI TNIPFGFIGP DLSDNLLAQS
     KGWEKKFIRI ADNSAKDLKS FICGNNIKDE HKIFYNWNLI NTVQLICDIR KAKPGDRCIH
     DKTQKLEECR GIEIGHIFQL GTKYSKSLNA TFTNEKGIED HLWMGCYGIG ISRLAQAAVE
     QNHDDLGIIW PTSIAPFTVI IIIANIKNND QKCLAEDIYQ KLIQNRVDVL LDDRDDRAGI
     KFKDADLIGI PWRIVAGREA SSGLVELHNR KTKTTELLDL NSVLKKLSEE FNTEKL