UniProtKB - P19954 (PRSP1_SPIOL)
Protein
Ribosome-binding factor PSRP1, chloroplastic
Gene
PSRP1
Organism
Spinacia oleracea (Spinach)
Status
Functioni
Ribosome-binding factor involved in light- and temperature-dependent control of protein synthesis. Interacts with 16S sRNA nucleotides at the A-site and P-site, where it protects the decoding center and inhibits translation by preventing tRNA binding. Stabilizes 70S ribosomes against dissociation. May be recycled by the combined action of ribosome-recycling factor (RRF) and EF-G.2 Publications
Caution
Was originally (PubMed:2693942, PubMed:2259340, PubMed:2376575, PubMed:1731992, PubMed:10874039, PubMed:18042701) thought to be a ribosomal protein.6 Publications
GO - Molecular functioni
- ribosomal small subunit binding Source: GO_Central
- ribosome binding Source: GO_Central
- rRNA binding Source: UniProtKB-KW
GO - Biological processi
- negative regulation of translational elongation Source: GO_Central
- primary metabolic process Source: InterPro
Keywordsi
Molecular function | RNA-binding, rRNA-binding |
Biological process | Translation regulation |
Names & Taxonomyi
Protein namesi | Recommended name: Ribosome-binding factor PSRP1, chloroplastic1 PublicationAlternative name(s): 30S ribosomal protein 1 CS-S51 Publication Short name: CS5 Plastid-specific 30S ribosomal protein 11 Publication Short name: PSrp-11 Publication Ribosomal protein 1 S221 Publication Translation factor pY1 Publication |
Gene namesi | Name:PSRP1 Synonyms:RPS22, RPS30 ORF Names:SOVF_177810 |
Organismi | Spinacia oleracea (Spinach) |
Taxonomic identifieri | 3562 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › Caryophyllales › Chenopodiaceae › Chenopodioideae › Anserineae › Spinacia |
Proteomesi |
|
Subcellular locationi
Chloroplast
- chloroplast stroma 3 Publications
Chloroplast
- chloroplast stroma Source: UniProtKB-SubCell
Cytosol
- cytosolic small ribosomal subunit Source: GO_Central
Keywords - Cellular componenti
Chloroplast, PlastidPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transit peptidei | 1 – 66 | Chloroplast2 PublicationsAdd BLAST | 66 | |
ChainiPRO_0000030635 | 67 – 302 | Ribosome-binding factor PSRP1, chloroplasticAdd BLAST | 236 |
Interactioni
Subunit structurei
Binds to the mRNA channel of the chloroplast small ribosomal subunit and interacts with 16S sRNA nucleotides at the A-site and P-site.
1 PublicationFamily & Domainsi
Sequence similaritiesi
Keywords - Domaini
Transit peptideFamily and domain databases
CDDi | cd00552, RaiA, 1 hit |
Gene3Di | 3.30.160.100, 1 hit 3.30.505.50, 1 hit |
HAMAPi | MF_00839, HPF, 1 hit |
InterProi | View protein in InterPro IPR034694, HPF_long/plastid IPR036567, RHF-like IPR003489, RHF/RaiA IPR032528, Ribosom_S30AE_C IPR038416, Ribosom_S30AE_C_sf |
Pfami | View protein in Pfam PF16321, Ribosom_S30AE_C, 1 hit PF02482, Ribosomal_S30AE, 1 hit |
SUPFAMi | SSF69754, SSF69754, 1 hit |
TIGRFAMsi | TIGR00741, yfiA, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
P19954-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MATLCTSAIN MNPNLTNSLS NSINLSSTPT NLSSLRSTFT NSCSLGLNVA
60 70 80 90 100
VKSVQISRNK PNVVCMSWDG PLSSVKLILQ GRNLEVSDNV RSHVEDKVGK
110 120 130 140 150
SVAKHSHLVR EVDVRLSARG GDLSKGPKLR RCEVTLFTKR HGVIRAEEDA
160 170 180 190 200
ESLYSSIDLV SSIIQRKLRK IKDKVSDHGR HMKGFNRSKV RDPEPVRITR
210 220 230 240 250
EEVLEEVESA PAPVSVEDDD FIEEVVRTKY FDMPPLTITE AVEQLENVDH
260 270 280 290 300
DFYAFRNEET GDINILYKRK EGGYGLIIPK DGKTEKLESL PVQTDKQPSF
AE
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 29 | P → L in AAA34039 (PubMed:1731992).Curated | 1 |
Mass spectrometryi
Molecular mass is 26805.0 Da. Determined by ESI. 1 Publication
Molecular mass is 26943 Da. Determined by MALDI. 1 Publication
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X15344 mRNA Translation: CAA33403.1 M55322 mRNA Translation: AAA34039.1 X59270 Genomic DNA Translation: CAA41960.1 KQ180281 Genomic DNA Translation: KNA06792.1 |
PIRi | S19131, R3SPS5 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X15344 mRNA Translation: CAA33403.1 M55322 mRNA Translation: AAA34039.1 X59270 Genomic DNA Translation: CAA41960.1 KQ180281 Genomic DNA Translation: KNA06792.1 |
PIRi | S19131, R3SPS5 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
5MMJ | electron microscopy | 3.65 | y | 1-302 | [»] | |
5MMM | electron microscopy | 3.40 | y | 1-302 | [»] | |
5X8P | electron microscopy | 3.40 | y | 67-302 | [»] | |
5X8R | electron microscopy | 3.70 | y | 67-302 | [»] | |
6ERI | electron microscopy | 3.00 | BV | 73-178 | [»] | |
SMRi | P19954 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Family and domain databases
CDDi | cd00552, RaiA, 1 hit |
Gene3Di | 3.30.160.100, 1 hit 3.30.505.50, 1 hit |
HAMAPi | MF_00839, HPF, 1 hit |
InterProi | View protein in InterPro IPR034694, HPF_long/plastid IPR036567, RHF-like IPR003489, RHF/RaiA IPR032528, Ribosom_S30AE_C IPR038416, Ribosom_S30AE_C_sf |
Pfami | View protein in Pfam PF16321, Ribosom_S30AE_C, 1 hit PF02482, Ribosomal_S30AE, 1 hit |
SUPFAMi | SSF69754, SSF69754, 1 hit |
TIGRFAMsi | TIGR00741, yfiA, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | PRSP1_SPIOL | |
Accessioni | P19954Primary (citable) accession number: P19954 Secondary accession number(s): A0A0K9QHQ6 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | February 1, 1991 |
Last sequence update: | May 1, 1991 | |
Last modified: | October 7, 2020 | |
This is version 111 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structure, Direct protein sequencing, Reference proteomeDocuments
- PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families