UniProtKB - P0CX30 (RS23B_YEAST)
Protein
40S ribosomal protein S23-B
Gene
RPS23B
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Functioni
Component of the ribosome, a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. The small ribosomal subunit (SSU) binds messenger RNAs (mRNAs) and translates the encoded message by selecting cognate aminoacyl-transfer RNA (tRNA) molecules. The large subunit (LSU) contains the ribosomal catalytic site termed the peptidyl transferase center (PTC), which catalyzes the formation of peptide bonds, thereby polymerizing the amino acids delivered by tRNAs into a polypeptide chain. The nascent polypeptides leave the ribosome through a tunnel in the LSU and interact with protein factors that function in enzymatic processing, targeting, and the membrane insertion of nascent chains at the exit of the ribosomal tunnel.1 Publication
Miscellaneous
Present with 3340 molecules/cell in log phase SD medium.1 Publication
There are 2 genes for uS12 in yeast.Curated
GO - Molecular functioni
- structural constituent of ribosome Source: SGD
GO - Biological processi
- maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) Source: SGD
- regulation of translational fidelity Source: UniProtKB
- translation Source: GO_Central
Keywordsi
Molecular function | Ribonucleoprotein, Ribosomal protein |
Enzyme and pathway databases
Reactomei | R-SCE-156827, L13a-mediated translational silencing of Ceruloplasmin expression R-SCE-1799339, SRP-dependent cotranslational protein targeting to membrane R-SCE-72689, Formation of a pool of free 40S subunits R-SCE-72695, Formation of the ternary complex, and subsequently, the 43S complex R-SCE-72702, Ribosomal scanning and start codon recognition R-SCE-72706, GTP hydrolysis and joining of the 60S ribosomal subunit R-SCE-975956, Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) R-SCE-975957, Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) |
Names & Taxonomyi
Protein namesi | Recommended name: 40S ribosomal protein S23-B1 PublicationAlternative name(s): RP37 S28 Small ribosomal subunit protein uS12-B1 Publication YS14 |
Gene namesi | Ordered Locus Names:YPR132W ORF Names:P9659.9 |
Organismi | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) |
Taxonomic identifieri | 559292 [NCBI] |
Taxonomic lineagei | Eukaryota › Fungi › Dikarya › Ascomycota › Saccharomycotina › Saccharomycetes › Saccharomycetales › Saccharomycetaceae › Saccharomyces › |
Proteomesi |
|
Organism-specific databases
SGDi | S000006336, RPS23B |
Subcellular locationi
Other locations
- Cytoplasm 2 Publications
Cytosol
- cytosolic small ribosomal subunit Source: SGD
Other locations
- ribosome Source: GO_Central
Keywords - Cellular componenti
CytoplasmPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 64 | P → A: Lethal mutation. 1 Publication | 1 | |
Mutagenesisi | 65 | N → A: Lethal mutation. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000409761 | 1 – 145 | 40S ribosomal protein S23-BAdd BLAST | 145 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Cross-linki | 56 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)Combined sources | ||
Modified residuei | 64 | 3,4-dihydroxyproline1 Publication | 1 |
Post-translational modificationi
Hydroxylation at Pro-64 affects translation termination efficiency. The stereochemistry of the 3,4-dihydroxyproline has not yet been determined.1 Publication
Keywords - PTMi
Hydroxylation, Isopeptide bond, Ubl conjugationProteomic databases
PRIDEi | P0CX30 |
PTM databases
iPTMneti | P0CX30 |
Interactioni
Subunit structurei
Component of the small ribosomal subunit (SSU). Mature yeast ribosomes consist of a small (40S) and a large (60S) subunit. The 40S small subunit contains 1 molecule of ribosomal RNA (18S rRNA) and 33 different proteins (encoded by 57 genes). The large 60S subunit contains 3 rRNA molecules (25S, 5.8S and 5S rRNA) and 46 different proteins (encoded by 81 genes) (PubMed:9559554, PubMed:22096102).
1 Publication1 PublicationProtein-protein interaction databases
BioGRIDi | 33363, 208 interactors 36298, 84 interactors |
Miscellaneous databases
RNActi | P0CX30, protein |
Family & Domainsi
Sequence similaritiesi
Belongs to the universal ribosomal protein uS12 family.Curated
Phylogenomic databases
GeneTreei | ENSGT00550000074784 |
HOGENOMi | CLU_115574_0_1_1 |
InParanoidi | P0CX30 |
Family and domain databases
CDDi | cd03367, Ribosomal_S23, 1 hit |
InterProi | View protein in InterPro IPR012340, NA-bd_OB-fold IPR006032, Ribosomal_S12/S23 IPR005680, Ribosomal_S23_euk/arc |
PANTHERi | PTHR11652, PTHR11652, 1 hit |
Pfami | View protein in Pfam PF00164, Ribosom_S12_S23, 1 hit |
PIRSFi | PIRSF002133, Ribosomal_S12/S23, 1 hit |
SUPFAMi | SSF50249, SSF50249, 1 hit |
TIGRFAMsi | TIGR00982, uS12_E_A, 1 hit |
PROSITEi | View protein in PROSITE PS00055, RIBOSOMAL_S12, 1 hit |
i Sequence
Sequence statusi: Complete.
P0CX30-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MGKGKPRGLN SARKLRVHRR NNRWAENNYK KRLLGTAFKS SPFGGSSHAK
60 70 80 90 100
GIVLEKLGIE SKQPNSAIRK CVRVQLIKNG KKVTAFVPND GCLNFVDEND
110 120 130 140
EVLLAGFGRK GKAKGDIPGV RFKVVKVSGV SLLALWKEKK EKPRS
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M96571 Unassigned DNA Translation: AAA16236.1 U40829 Genomic DNA Translation: AAB68273.1 BK006949 Genomic DNA Translation: DAA11544.1 |
PIRi | A46703 |
RefSeqi | NP_011633.3, NM_001181247.3 NP_015457.1, NM_001184229.1 |
Genome annotation databases
EnsemblFungii | YGR118W_mRNA; YGR118W; YGR118W YPR132W_mRNA; YPR132W; YPR132W |
GeneIDi | 853015 856250 |
KEGGi | sce:YGR118W sce:YPR132W |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M96571 Unassigned DNA Translation: AAA16236.1 U40829 Genomic DNA Translation: AAB68273.1 BK006949 Genomic DNA Translation: DAA11544.1 |
PIRi | A46703 |
RefSeqi | NP_011633.3, NM_001181247.3 NP_015457.1, NM_001184229.1 |
3D structure databases
SMRi | P0CX30 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 33363, 208 interactors 36298, 84 interactors |
PTM databases
iPTMneti | P0CX30 |
Proteomic databases
PRIDEi | P0CX30 |
Genome annotation databases
EnsemblFungii | YGR118W_mRNA; YGR118W; YGR118W YPR132W_mRNA; YPR132W; YPR132W |
GeneIDi | 853015 856250 |
KEGGi | sce:YGR118W sce:YPR132W |
Organism-specific databases
SGDi | S000006336, RPS23B |
Phylogenomic databases
GeneTreei | ENSGT00550000074784 |
HOGENOMi | CLU_115574_0_1_1 |
InParanoidi | P0CX30 |
Enzyme and pathway databases
Reactomei | R-SCE-156827, L13a-mediated translational silencing of Ceruloplasmin expression R-SCE-1799339, SRP-dependent cotranslational protein targeting to membrane R-SCE-72689, Formation of a pool of free 40S subunits R-SCE-72695, Formation of the ternary complex, and subsequently, the 43S complex R-SCE-72702, Ribosomal scanning and start codon recognition R-SCE-72706, GTP hydrolysis and joining of the 60S ribosomal subunit R-SCE-975956, Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) R-SCE-975957, Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) |
Miscellaneous databases
PROi | PR:P0CX30 |
RNActi | P0CX30, protein |
Gene expression databases
ExpressionAtlasi | P0CX30, differential |
Family and domain databases
CDDi | cd03367, Ribosomal_S23, 1 hit |
InterProi | View protein in InterPro IPR012340, NA-bd_OB-fold IPR006032, Ribosomal_S12/S23 IPR005680, Ribosomal_S23_euk/arc |
PANTHERi | PTHR11652, PTHR11652, 1 hit |
Pfami | View protein in Pfam PF00164, Ribosom_S12_S23, 1 hit |
PIRSFi | PIRSF002133, Ribosomal_S12/S23, 1 hit |
SUPFAMi | SSF50249, SSF50249, 1 hit |
TIGRFAMsi | TIGR00982, uS12_E_A, 1 hit |
PROSITEi | View protein in PROSITE PS00055, RIBOSOMAL_S12, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | RS23B_YEAST | |
Accessioni | P0CX30Primary (citable) accession number: P0CX30 Secondary accession number(s): D6VUP9, P32827 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | June 28, 2011 |
Last sequence update: | June 28, 2011 | |
Last modified: | December 2, 2020 | |
This is version 76 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Fungal Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Yeast chromosome XVI
Yeast (Saccharomyces cerevisiae) chromosome XVI: entries and gene names - SIMILARITY comments
Index of protein domains and families - Yeast
Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD - Ribosomal proteins
Ribosomal proteins families and list of entries