ID   SYP_ACIBT               Reviewed;         571 AA.
AC   A3M8I1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   25-MAY-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}; OrderedLocusNames=A1S_2819;
OS   Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC
OS   KC755 / 5377).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX   NCBI_TaxID=400667;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377;
RX   PubMed=17344419; DOI=10.1101/gad.1510307;
RA   Smith M.G., Gianoulis T.A., Pukatzki S., Mekalanos J.J., Ornston L.N.,
RA   Gerstein M., Snyder M.;
RT   "New insights into Acinetobacter baumannii pathogenesis revealed by high-
RT   density pyrosequencing and transposon mutagenesis.";
RL   Genes Dev. 21:601-614(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; CP000521; ABO13225.2; -; Genomic_DNA.
DR   RefSeq; WP_001202763.1; NZ_CP053098.1.
DR   AlphaFoldDB; A3M8I1; -.
DR   SMR; A3M8I1; -.
DR   KEGG; acb:A1S_2819; -.
DR   HOGENOM; CLU_016739_0_0_6; -.
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   PIRSF; PIRSF001535; ProRS_1; 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..571
FT                   /note="Proline--tRNA ligase"
FT                   /id="PRO_1000199343"
SQ   SEQUENCE   571 AA;  63261 MW;  C8E5F3CDACDCCB1F CRC64;
     MRASRFLFAT LRETPNDAEV ISHQLMLRAG MIRKLASGLY TWLPMGTRVL KKVDAIVREE
     MNRSGAMEVF MPVTQPASLW EESGRYEQYG PELLRFKDRH DNPFVLGPTH EEVITDLARN
     ELKSYKQLPV NFYQIQTKFR DEIRPRFGVM RSREFIMKDA YSFHATQESL QETYDVMYDT
     YSRIFTRLGL DFRPVQADTG SIGGSASHEF HVLAASGEDD IAFSTESDYA ANVEMAEAVL
     VGERAAPTQE FKLVETPNQK TIADVCQFLN ADPKQSVKAL LVQGVADEKG NVPVVALFLR
     GDHELNEIKA EKHPLVAAPL AFATEEQLQA FGLTAGFTGP QGLVEKGITV IVDRAASVLS
     DFVAGANEAD KHAVGVNWER DAQITEVFDL RNVVEGDPSP DGKGTLQIKR GIEVGHIFQL
     GTKYSEALGC KVLGEDGKPF TVTMGCYGIG VTRVVAAAIE QNYDDKGIIW PQAIAPFEIA
     IVPMNAHKSP RTLEAAEALY AELQAQGFDV LLDDRNERPG VKFSDLELMG IPHRIVIGEK
     GLDAGTFEYK GRRDAEASNL TKEELLAKLA R