ID   SYP_LACDB               Reviewed;         565 AA.
AC   Q049U9;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   27-MAR-2024, entry version 97.
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};
GN   OrderedLocusNames=LBUL_1247;
OS   Lactobacillus delbrueckii subsp. bulgaricus (strain ATCC BAA-365 / Lb-18).
OC   Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=321956;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-365 / Lb-18;
RX   PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA   Makarova K.S., Slesarev A., Wolf Y.I., Sorokin A., Mirkin B., Koonin E.V.,
RA   Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA   Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA   Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA   Baldwin K., Lee J.-H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA   Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA   Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J.R., Hutkins R.,
RA   O'Sullivan D., Steele J., Unlu G., Saier M.H. Jr., Klaenhammer T.,
RA   Richardson P., Kozyavkin S., Weimer B.C., Mills D.A.;
RT   "Comparative genomics of the lactic acid bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
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; CP000412; ABJ58773.1; -; Genomic_DNA.
DR   RefSeq; WP_003618583.1; NC_008529.1.
DR   AlphaFoldDB; Q049U9; -.
DR   SMR; Q049U9; -.
DR   KEGG; lbu:LBUL_1247; -.
DR   HOGENOM; CLU_016739_0_0_9; -.
DR   BioCyc; LDEL321956:LBUL_RS05855-MONOMER; -.
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:0016740; F:transferase activity; IEA:UniProt.
DR   GO; GO:0006433; P:prolyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd04334; ProRS-INS; 1.
DR   CDD; cd00861; ProRS_anticodon_short; 1.
DR   CDD; cd00779; ProRS_core_prok; 1.
DR   Gene3D; 3.40.50.800; Anticodon-binding domain; 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; IPR044140; ProRS_anticodon_short.
DR   InterPro; IPR033730; ProRS_core_prok.
DR   InterPro; IPR036754; YbaK/aa-tRNA-synt-asso_dom_sf.
DR   InterPro; IPR007214; YbaK/aa-tRNA-synth-assoc-dom.
DR   NCBIfam; TIGR00409; proS_fam_II; 1.
DR   PANTHER; PTHR42753; MITOCHONDRIAL RIBOSOME PROTEIN L39/PROLYL-TRNA LIGASE FAMILY MEMBER; 1.
DR   PANTHER; PTHR42753:SF2; PROLINE--TRNA LIGASE, MITOCHONDRIAL-RELATED; 1.
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; SSF52954; Class II aaRS ABD-related; 1.
DR   SUPFAM; SSF55681; Class II aaRS and biotin synthetases; 1.
DR   SUPFAM; SSF55826; YbaK/ProRS associated domain; 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..565
FT                   /note="Proline--tRNA ligase"
FT                   /id="PRO_0000288337"
SQ   SEQUENCE   565 AA;  62731 MW;  A2EC890DB3777C0A CRC64;
     MRQSIFFMPT LKETPADAVA KSHQVMLRGG YIRQVTAGVY SYLPLGYKVL RKTEKIIEEE
     MANAGVVEMI MPHMLPASMW EESGRLPKYG PEMFRLKDRH GREMLLGPTH EETFTDVVAK
     SLKSYKQMPL QLYQIQTKFR DENRPRFGLL RGREFVMLDG YSFAASQEQL DKQFDDEKAA
     YLKIFKRTGV EVRPVIADSG TMGGKNSIEF QAPAAVGEDT IATNASGTYA ANLEMAVSVD
     TFKQEPEELK AMEKVATPGC DSIDKLAEFL QVPATRIVKS VLYIVDEKKK VLVLIRADKE
     VNEVKLTHLL DCDSLRVAET SDLEELTGAG KGGVGPVNAD WADEIVADKT VKGLYNVVVG
     AGESDAQFIN ANLDRDFKAD RFADLRVANE GEPDPVDHEP LKFTTSIEVG HIFKLGTYYT
     ETMGAKFLDQ NGKSQPVIMG SYGIGVTRLL SAVVEQHATE NGVAWPKEIA PFGIHIIQMK
     MKDEIQSKLA EDLEAKFAKY DVLYDDRNER PGVKFNDADL VGAPIRITVG RDAADGIVEV
     KRPGDDQAQK LAVADLEDFI ANELD
//