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Q3JZ37 (SYP_STRA1) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 56. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Proline--tRNA ligase

EC=6.1.1.15
Alternative name(s):
Prolyl-tRNA synthetase
Short name=ProRS
Gene names
Name:proS
Ordered Locus Names:SAK_1871
OrganismStreptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC SS700) [Complete proteome] [HAMAP]
Taxonomic identifier205921 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

Protein attributes

Sequence length617 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Catalyzes the attachment of proline to tRNA(Pro) in a two-step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro). As ProRS can inadvertently accommodate and process non-cognate amino acids such as alanine and cysteine, to avoid such errors it has two additional distinct editing activities against alanine. One activity is designated as 'pretransfer' editing and involves the tRNA(Pro)-independent hydrolysis of activated Ala-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Ala-tRNA(Pro). The misacylated Cys-tRNA(Pro) is not edited by ProRS By similarity. HAMAP-Rule MF_01569

Catalytic activity

ATP + L-proline + tRNA(Pro) = AMP + diphosphate + L-prolyl-tRNA(Pro). HAMAP-Rule MF_01569

Subunit structure

Homodimer By similarity.

Subcellular location

Cytoplasm By similarity.

Domain

Consists of three domains: the N-terminal catalytic domain, the editing domain and the C-terminal anticodon-binding domain By similarity. HAMAP-Rule MF_01569

Sequence similarities

Belongs to the class-II aminoacyl-tRNA synthetase family. ProS type 1 subfamily.

Sequence caution

The sequence ABA46079.1 differs from that shown. Reason: Erroneous initiation.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 617617Proline--tRNA ligase HAMAP-Rule MF_01569
PRO_0000248773

Sequences

Sequence LengthMass (Da)Tools
Q3JZ37 [UniParc].

Last modified September 5, 2006. Version 2.
Checksum: B7479B2B60BE9F44

FASTA61768,997
        10         20         30         40         50         60 
MKQSKMLIPT LREMPSDAQV ISHALMVRAG YVRQVSAGIY AYLPLANRTI EKFKTIMRQE 

        70         80         90        100        110        120 
FEKIGAVEML APALLTADLW RESGRYETYG EDLYKLKNRD QSDFILGPTH EETFTTLVRD 

       130        140        150        160        170        180 
AVKSYKQLPL NLYQIQSKYR DEKRPRNGLL RTREFIMKDG YSFHKDYEDL DVTYEDYRKA 

       190        200        210        220        230        240 
YEAIFTRAGL DFKGIIGDGG AMGGKDSQEF MAVTPNRTDL NRWLVLDKTI PSIDDIPEDV 

       250        260        270        280        290        300 
LEEIKAELSA WLVSGEDTIA YSTESSYAAN LEMATNEYKP STKAATFEEV TKVETPNCKS 

       310        320        330        340        350        360 
IDEVAGFLSI DKNQTIKTLL FIADEQPVVA LLVGNDQVND VKLKNYLAAD FLEPASEEQA 

       370        380        390        400        410        420 
KEIFGAGFGS LGPVNLPESV KIIADRKVQD LANAVSGANQ DGYHFTGVNP ERDFTAEYVD 

       430        440        450        460        470        480 
IREVKEGEIS PDGKGTLKFS RGIEIGHIFK LGTRYSDSMG ANILDENGRS NPIVMGCYGI 

       490        500        510        520        530        540 
GVSRILSAVI EQHARLFVNK TPKGAYRFAW GINFPEELAP FDVHLITVNV KDQESQDLTE 

       550        560        570        580        590        600 
KIEADLMLKG YEVLTDDRNE RVGSKFSDSD LIGLPIRVTV GKKASEGIVE VKIKASGDTI 

       610 
EVHADNLIET LEILTKK 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000114 Genomic DNA. Translation: ABA46079.1. Different initiation.
RefSeqYP_330466.2. NC_007432.1.

3D structure databases

ProteinModelPortalQ3JZ37.
SMRQ3JZ37. Positions 1-614.
ModBaseSearch...

Protein-protein interaction databases

STRING205921.SAK_1871.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABA46079; ABA46079; SAK_1871.
GeneID3686797.
KEGGsak:SAK_1871.
PATRIC19635076. VBIStrAga82541_1841.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0442.
HOGENOMHOG000076893.
KOK01881.
ProtClustDBPRK09194.

Enzyme and pathway databases

BioCycSAGA205921:GHD7-1877-MONOMER.

Family and domain databases

Gene3D3.40.50.800. 1 hit.
3.90.960.10. 1 hit.
HAMAPMF_01569. Pro_tRNA_synth_type1.
InterProIPR002314. aa-tRNA-synt_IIb_cons-dom.
IPR006195. aa-tRNA-synth_II.
IPR004154. Anticodon-bd.
IPR002316. Pro-tRNA-ligase_IIa.
IPR004500. Pro-tRNA-synth_IIa_bac-type.
IPR023717. Pro-tRNA-Synthase_IIa_type1.
IPR007214. YbaK/aa-tRNA-synth-assoc-dom.
[Graphical view]
PANTHERPTHR11451:SF3. PTHR11451:SF3. 1 hit.
PfamPF03129. HGTP_anticodon. 1 hit.
PF00587. tRNA-synt_2b. 1 hit.
PF04073. YbaK. 1 hit.
[Graphical view]
PRINTSPR01046. TRNASYNTHPRO.
SUPFAMSSF52954. Anticodon_bd. 1 hit.
SSF55826. YbaK/aa-tRNA-synth-assoc-reg. 1 hit.
TIGRFAMsTIGR00409. proS_fam_II. 2 hits.
PROSITEPS50862. AA_TRNA_LIGASE_II. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameSYP_STRA1
AccessionPrimary (citable) accession number: Q3JZ37
Entry history
Integrated into UniProtKB/Swiss-Prot: September 5, 2006
Last sequence update: September 5, 2006
Last modified: May 1, 2013
This is version 56 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

Aminoacyl-tRNA synthetases

List of aminoacyl-tRNA synthetase entries

SIMILARITY comments

Index of protein domains and families