SYP_SYNE7
ID SYP_SYNE7 Reviewed; 600 AA.
AC Q31LT0;
DT 05-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT 05-SEP-2006, sequence version 2.
DT 03-AUG-2022, entry version 93.
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=Synpcc7942_1959;
OS Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS R2).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=1140;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7942 / FACHB-805;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA Kyrpides N., Lykidis A., Richardson P.;
RT "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABB57989.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000100; ABB57989.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_011378253.1; NC_007604.1.
DR AlphaFoldDB; Q31LT0; -.
DR SMR; Q31LT0; -.
DR STRING; 1140.Synpcc7942_1959; -.
DR PRIDE; Q31LT0; -.
DR EnsemblBacteria; ABB57989; ABB57989; Synpcc7942_1959.
DR KEGG; syf:Synpcc7942_1959; -.
DR eggNOG; COG0442; Bacteria.
DR HOGENOM; CLU_016739_0_0_3; -.
DR OrthoDB; 665824at2; -.
DR BioCyc; SYNEL:SYNPCC7942_1959-MON; -.
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 CDD; cd00779; ProRS_core_prok; 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; IPR033730; ProRS_core_prok.
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_0000248797"
SQ SEQUENCE 600 AA; 66284 MW; 940D6A0EFE628DCB CRC64;
MRLSQMLFVT LREDPAEAEI PSHKLLLRAG YIRRIASGIY AYLPLMWRVL RKVSQIVREE
MDATGAQETL LPQLQPAELW QESGRWETYT KAEGIMFSLD DRQQRQLGLG PTHEEVITAV
ARDLIRSYRQ LPQNLYQIQT KFRDEIRPRF GLMRGREFIM KDAYSFHADE ESLRQTYAAM
DQAYRNIFRR CGLQFRAVEA DSGAIGGSAS QEFMILADAG EDEILYTEDG RYAANVEKAV
SLPAEAIASA FTTFEKRETP GTDTIASLCE FLKADPTQVV KQVLYQAVFD NGKLLPILIS
IRGDQSVNEI KLTNELTRRA ADYGAKTVIA LTVPDAEALK KWTAAPLPLG YLGPDLADSA
IAVNESIIPK FLRLVDPTAA ELQNFVTGAN EVNFHVVGAN WETNFPKPAV VDLRTALVGD
RAQHDSSQVL ASARGIEAGH IFQLGLKYSQ AMGATFTTEN GTEEPLWMGC YGIGVSRVAQ
AAVEQSYDKD GIIWPVAIAP YQAVVVIPNI TDTEQVAAAE KIYADLTAAG IETLLDDRDE
RAGVKFKDAD LIGIPYRIVT GRSLKEGKVE VVQRASKESS VIAVGSVVET VQDWIAAAIV
