ID   SYP_PROM5               Reviewed;         600 AA.
AC   A2BVH0;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 87.
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=P9515_05721;
OS   Prochlorococcus marinus (strain MIT 9515).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167542;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9515;
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; CP000552; ABM71781.1; -; Genomic_DNA.
DR   RefSeq; WP_011819888.1; NC_008817.1.
DR   AlphaFoldDB; A2BVH0; -.
DR   SMR; A2BVH0; -.
DR   STRING; 167542.P9515_05721; -.
DR   EnsemblBacteria; ABM71781; ABM71781; P9515_05721.
DR   KEGG; pmc:P9515_05721; -.
DR   eggNOG; COG0442; Bacteria.
DR   HOGENOM; CLU_016739_0_0_3; -.
DR   OMA; NCDYAAN; -.
DR   OrthoDB; 665824at2; -.
DR   Proteomes; UP000001589; 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   CDD; cd00861; ProRS_anticodon_short; 1.
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; IPR044140; ProRS_anticodon_short.
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..600
FT                   /note="Proline--tRNA ligase"
FT                   /id="PRO_0000288364"
SQ   SEQUENCE   600 AA;  68347 MW;  F60DF9D5AE9E4529 CRC64;
     MRVTTSFPLG TLRDTPSEAE IISHQLLLKG GYIRRVNSGI YAYMPIMLKV IEKISNIIEK
     ELNNNGCSKL LLPQLHPAEL WKRSERWEGY TAGEGIMFNL KDRQGKEFGL APTHEEVITN
     IASEIINSYK QLPLCFYQIQ TKFRDEIRPR FGLMRSREFI MKDGYSFHSS KEDLSSFYEK
     MERSYENIFK NCGLDTVGVD ADSGAIGGAA SKEFMVTADA GEDYILFTES GSYAANIEKA
     ISLPSKEIPL KSFETEWLET PNQKSIVDIC KENDLDASQI VKVVIFVAKF ENKSQLPILT
     CIRGDQHINE IKLFNLISKK YSSNLISLEI IEDNATIEKN LTNFPLGYIG PDINDEVIKN
     SSSWDKSWIR IADHSANNLS SFVSGSNKVN FHKVFQTFSF IDNQFLISDI RNAKKGDRIS
     LESNEELKEK RGIEIGHIFQ LGQKYSEKLN AKFSDKDGKL KNLWMGCYGI GVTRIAQAAI
     EQNHDENGIS WPIQISPFEI LIIPTNLKDP YQTKLTEEIY KEFESKKIDV LLDDRDVRAG
     VKFKDADLIG IPFQIIIGRD SINKEVEFIC RSSKRKIKIS SQNLLEKFIS ESKILYNENS