RPP2B ribosomal protein P2B [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: RPP2B
Official Full Name: ribosomal protein P2B
Primary source: SGD:S000002790
Locus tag: YDR382W
See related: AllianceGenome:SGD:S000002790; FungiDB:YDR382W; VEuPathDB:YDR382W
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as: RPL45; YPA1
Summary: Enables protein kinase activator activity. A structural constituent of ribosome. Involved in cytoplasmic translation. Located in fungal-type vacuole. Part of cytosolic large ribosomal subunit. Orthologous to human RPLP2 (ribosomal protein lateral stalk subunit P2). [provided by Alliance of Genome Resources, Dec 2024]
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Genomic context

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See RPP2B in Genome Data Viewer

Location:: chromosome: IV

Exon count:: 1

Sequence:: Chromosome: IV; NC_001136.10 (1239492..1239824)

Chromosome IV - NC_001136.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001136.10

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

P1/P2 heterodimers bind to P0 when both ribosomal subunits are joined and committed to translation, and they detached from the stalk, just after the small and large ribosomal subunits were separated from the mRNA.
Title: The P1/P2 protein heterodimers assemble to the ribosomal stalk at the moment when the ribosome is committed to translation but not to the native 60S ribosomal subunit in Saccharomyces cerevisiae.
The reported results support that while most ribosomes contain a P1alpha/P2beta-P0-P1beta/P2alpha structure in normal conditions, the stalk assembly mechanism can generate alternative compositions, which have been previously detected in the cell.
Title: P1 and P2 protein heterodimer binding to the P0 protein of Saccharomyces cerevisiae is relatively non-specific and a source of ribosomal heterogeneity.
Two short amino acid regions of P0 protein located at positions 199-230 and 231-258, to be responsible for independent binding of two dimers, P1A-P2B and P1B-P2A respectively.
Title: Yeast ribosomal P0 protein has two separate binding sites for P1/P2 proteins.
The sequential co-folding/association reaction of an oligomeric system with P0-(P1A-P2B) protein complex as an essential element in the acquisition of a stable quaternary structure of the ribosomal stalk.
Title: Acquisition of a stable structure by yeast ribosomal P0 protein requires binding of P1A-P2B complex: in vitro formation of the stalk structure.

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Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Orthologs from OrthoDB

Gene Ontology Provided by SGD

Function	Evidence Code	Pubs
enables protein kinase activator activity	IDA Inferred from Direct Assay more info	PubMed
enables structural constituent of ribosome	IDA Inferred from Direct Assay more info	PubMed
enables structural constituent of ribosome	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in cytoplasmic translation	IGI Inferred from Genetic Interaction more info	PubMed
involved_in cytoplasmic translation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in cytoplasmic translational elongation	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
part_of cytosolic large ribosomal subunit	IDA Inferred from Direct Assay more info	PubMed
part_of cytosolic large ribosomal subunit	IEA Inferred from Electronic Annotation more info
located_in fungal-type vacuole	HDA more info	PubMed
part_of ribonucleoprotein complex	IEA Inferred from Electronic Annotation more info
located_in ribosome	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: ribosomal protein P2B

NP_010670.3

Ribosomal protein P2 beta; a component of the ribosomal stalk, which is involved in the interaction between translational elongation factors and the ribosome; free (non-ribosomal) P2 stimulates the phosphorylation of the eIF2 alpha subunit (Sui2p) by Gcn2p; regulates the accumulation of P1 (Rpp1Ap and Rpp1Bp) in the cytoplasm

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

NC_001136.10 Reference assembly

Range

1239492..1239824

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001180690.3 → NP_010670.3 TPA: ribosomal protein P2B [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_010670.3

Status: REVIEWED

UniProtKB/Swiss-Prot

D6VT16, P02400

UniProtKB/TrEMBL

A6ZYY3, B3LFR8, C7GMF2, C8Z5U7, G2WBC2, N1P738

Conserved Domains (1) summary

cd05833
Location:1 → 110

Ribosomal_P2; Ribosomal protein P2. This subfamily represents the eukaryotic large ribosomal protein P2. Eukaryotic P1 and P2 are functionally equivalent to the bacterial protein L7/L12, but are not homologous to L7/L12. P2 is located in the L12 stalk, with proteins ...