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Ribosomes are highly conserved large ribonucleoprotein (RNP) particles, consisting in yeast of a large 60S subunit and a small 40S subunit, that perform protein synthesis. Yeast ribosomes contain one copy each of four ribosomal RNAs (5S, 5.8S, 18S, and 25S; produced in two separate transcripts encoded within the rDNA repeat present as hundreds of copies on Chromosome 12) and 79 different ribosomal proteins (r-proteins), which are encoded by 137 different genes scattered about the genome, 59 of which are duplicated (7, 6). The 60S subunit contains 46 proteins and three RNA molecules: 25S RNA of 3392 nt, hydrogen bonded to the 5.8S RNA of 158 nt and associated with the 5S RNA of 121 nt. The 40S subunit has a single 18S RNA of 1798 nt and 33 proteins (8, 6). All yeast ribosomal proteins have a mammalian homolog (1).

In a rapidly growing yeast cell, 60% of total transcription is devoted to ribosomal RNA, and 50% of RNA polymerase II transcription and 90% of mRNA splicing are devoted to the production of mRNAs for r-proteins. Coordinate regulation of the rRNA genes and 137 r-protein genes is affected by nutritional cues and a number of signal transduction pathways that can abruptly induce or silence the ribosomal genes, whose transcripts have naturally short lifetimes, leading to major implications for the expression of other genes as well (9, 10, 11). The expression of some r-protein genes is influenced by Abf1p (12), and most are directly induced by binding of Rap1p to their promoters, which excludes nucleosomes and recruits Fhl1p and Ifh1p to drive transcription (13).

Ribosome assembly is a complex process, with different steps occurring in different parts of the cell. Ribosomal protein genes are transcribed in the nucleus, and the mRNA is transported to the cytoplasm for translation. The newly synthesized r-proteins then enter the nucleus and associate in the nucleolus with the two rRNA transcripts, one of which is methylated and pseudouridylated (view sites of modifications), and then cleaved into three individual rRNAs (18S, 5.8S, and 25S) as part of the assembly process (7). Separate ribosomal subunits are then transported from the nucleolus to the cytoplasm where they assemble into mature ribosomes before functioning in translation (14, 15). Blockage of subunit assembly, such as due to inhibition of rRNA synthesis or processing, results in degradation of newly synthesized r-proteins (16, 15). (For more information on the early steps of rRNA processing and small ribosomal subunit assembly, see the summary paragraph for the U3 snoRNA, encoded by snR17A and snR17B.)", "date_edited": "2007-02-14"}, "literature_overview": {"primary_count": 18, "additional_count": 77, "review_count": 10, "go_count": 6, "phenotype_count": 1, "disease_count": 0, "interaction_count": 101, "regulation_count": 8, "ptm_count": 6, "funComplement_count": 0, "htp_count": 36, "total_count": 233}, "disease_overview": {"manual_disease_terms": [], "htp_disease_terms": [], "computational_annotation_count": 0, "date_last_reviewed": null}, "ecnumbers": [], "URS_ID": null, "main_strain": "S288C", "regulation_overview": {"regulator_count": 25, "target_count": 0}, "reference_mapping": {"556638": 1, "633510": 2, "631251": 3, "548623": 4, "526423": 5, "397935": 6, "592595": 7, "517471": 8, "631529": 9, "554134": 10, "585697": 11, "608664": 12, "518051": 13, "592541": 14, "508692": 15, "508689": 16, "592544": 17, "316136": 18}, "history": [{"category": "Name", "history_type": "LSP", "note": "Name: RPS0A", "date_created": "2000-05-19", "references": [{"id": 556638, "display_name": "Mager WH, et al. (1997)", "citation": "Mager WH, et al. (1997) A new nomenclature for the cytoplasmic ribosomal proteins of Saccharomyces cerevisiae. Nucleic Acids Res 25(24):4872-5", "pubmed_id": 9396790, "link": "/reference/S000071623", "year": 1997, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1093/nar/25.24.4872"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC147144/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/9396790"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: S0A", "date_created": "2010-02-16", "references": [{"id": 592544, "display_name": "Planta RJ and Mager WH (1998)", "citation": "Planta RJ and Mager WH (1998) The list of cytoplasmic ribosomal proteins of Saccharomyces cerevisiae. Yeast 14(5):471-7", "pubmed_id": 9559554, "link": "/reference/S000058461", "year": 1998, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1002/(SICI)1097-0061(19980330)14:5<471::AID-YEA241>3.0.CO;2-U"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/9559554"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: NAB1", "date_created": "2010-02-16", "references": [{"id": 556638, "display_name": "Mager WH, et al. (1997)", "citation": "Mager WH, et al. (1997) A new nomenclature for the cytoplasmic ribosomal proteins of Saccharomyces cerevisiae. Nucleic Acids Res 25(24):4872-5", "pubmed_id": 9396790, "link": "/reference/S000071623", "year": 1997, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1093/nar/25.24.4872"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC147144/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/9396790"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: NAB1A", "date_created": "2010-02-16", "references": [{"id": 556638, "display_name": "Mager WH, et al. (1997)", "citation": "Mager WH, et al. (1997) A new nomenclature for the cytoplasmic ribosomal proteins of Saccharomyces cerevisiae. Nucleic Acids Res 25(24):4872-5", "pubmed_id": 9396790, "link": "/reference/S000071623", "year": 1997, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1093/nar/25.24.4872"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC147144/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/9396790"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: YST1", "date_created": "2010-02-16", "references": [{"id": 631251, "display_name": "Demianova M, et al. (1996)", "citation": "Demianova M, et al. (1996) Yeast proteins related to the p40/laminin receptor precursor are essential components of the 40 S ribosomal subunit. J Biol Chem 271(19):11383-91", "pubmed_id": 8626693, "link": "/reference/S000045335", "year": 1996, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1074/jbc.271.19.11383"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/8626693"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: uS2", "date_created": "2016-08-09", "references": [{"id": 316136, "display_name": "Ban N, et al. (2014)", "citation": "Ban N, et al. (2014) A new system for naming ribosomal proteins. Curr Opin Struct Biol 24:165-9", "pubmed_id": 24524803, "link": "/reference/S000182084", "year": 2014, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1016/j.sbi.2014.01.002"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4358319/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/24524803"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: S2", "date_created": "2012-09-15", "references": [{"id": 397935, "display_name": "Jenner L, et al. (2012)", "citation": "Jenner L, et al. (2012) Crystal structure of the 80S yeast ribosome. Curr Opin Struct Biol 22(6):759-67", "pubmed_id": 22884264, "link": "/reference/S000150523", "year": 2012, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1016/j.sbi.2012.07.013"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/22884264"}]}]}, {"category": "Mapping", "history_type": "SEQUENCE", "note": "Mapping: Edition 13: YST1 (RPS0A) is 97% identical to YST2 (RPS0B) at the amino acid level.", "date_created": "1996-09-21", "references": [{"id": 542519, "display_name": "Cherry JM, et al. (1996)", "citation": "Cherry JM, et al. (1996) \"Genetic and Physical Maps of Saccharomyces cerevisiae (Edition 13)\". Pp. 361-364 in 1996 Yeast Genetics and Molecular Biology Meeting Program and Abstracts. Bethesda, MD: The Genetics Society of America", "pubmed_id": null, "link": "/reference/S000076283", "year": 1996, "urls": []}]}, {"category": "Mapping", "history_type": "SEQUENCE", "note": "Mapping: Edition 13: This gene was previously called NAB1A and NAB1", "date_created": "1996-09-21", "references": [{"id": 542519, "display_name": "Cherry JM, et al. (1996)", "citation": "Cherry JM, et al. (1996) \"Genetic and Physical Maps of Saccharomyces cerevisiae (Edition 13)\". Pp. 361-364 in 1996 Yeast Genetics and Molecular Biology Meeting Program and Abstracts. Bethesda, MD: The Genetics Society of America", "pubmed_id": null, "link": "/reference/S000076283", "year": 1996, "urls": []}]}, {"category": "Nomenclature history", "history_type": "LSP", "note": "Nomenclature history: Both NPL3/YDR432W and RPS0A/YGR214W have been referred to as NAB1 in the literature.", "date_created": "2004-04-30", "references": []}], "complexes": []}, tabs: {"id": 1285181, "protein_tab": true, "interaction_tab": true, "summary_tab": true, "go_tab": true, "sequence_section": true, "expression_tab": true, "phenotype_tab": true, "literature_tab": true, "wiki_tab": false, "regulation_tab": true, "sequence_tab": true, "history_tab": true, "homology_tab": true, "disease_tab": false} }; RPS0A | SGD

RPS0A / YGR214W Overview


Standard Name
RPS0A 1
Systematic Name
YGR214W
SGD ID
SGD:S000003446
Aliases
NAB1 1 , NAB1A 1 , YST1 3 , S0A 17 , S2 6 , uS2 18
Feature Type
ORF , Verified
Description
Ribosomal 40S subunit protein S0A; required for maturation of 18S rRNA along with Rps0Bp; deletion of either RPS0 gene reduces growth rate, deletion of both genes is lethal; homologous to human ribosomal protein SA and bacterial S2; RPS0A has a paralog, RPS0B, that arose from the whole genome duplication; 2 3 4 5 6
Name Description
Ribosomal Protein of the Small subunit 1
Paralog
RPS0B 5
Comparative Info
Sequence Details

Sequence

The S. cerevisiae Reference Genome sequence is derived from laboratory strain S288C. Download DNA or protein sequence, view genomic context and coordinates. Click "Sequence Details" to view all sequence information for this locus, including that for other strains.


Summary
RPS0A has a paralog, RPS0B, that arose from the whole genome duplication;
Protein Details

Protein

Basic sequence-derived (length, molecular weight, isoelectric point) and experimentally-determined (median abundance, median absolute deviation) protein information. Click "Protein Details" for further information about the protein such as half-life, abundance, domains, domains shared with other proteins, protein sequence retrieval for various strains, physico-chemical properties, protein modification sites, and external identifiers for the protein.


Length (a.a.)
252
Mol. Weight (Da)
28006.5
Isoelectric Point
4.36
Median Abundance (molecules/cell)
13774 +/- 9156
Half-life (hr)
>= 100

Alleles

Curated mutant alleles for the specified gene, listed alphabetically. Click on the allele name to open the allele page. Click "SGD search" to view all alleles in search results.


View all RPS0A alleles in SGD search

Gene Ontology Details

Gene Ontology

GO Annotations consist of four mandatory components: a gene product, a term from one of the three Gene Ontology (GO) controlled vocabularies (Molecular Function, Biological Process, and Cellular Component), a reference, and an evidence code. SGD has manually curated and high-throughput GO Annotations, both derived from the literature, as well as computational, or predicted, annotations. Click "Gene Ontology Details" to view all GO information and evidence for this locus as well as biological processes it shares with other genes.


Summary
Subunit of the cytosolic small ribosomal subunit; involved in rRNA processing and export from the nucleus, assembly of the small ribosomal subunit, and translation

View computational annotations

Molecular Function

Manually Curated

Cellular Component

Manually Curated
Phenotype Details

Phenotype

Phenotype annotations for a gene are curated single mutant phenotypes that require an observable (e.g., "cell shape"), a qualifier (e.g., "abnormal"), a mutant type (e.g., null), strain background, and a reference. In addition, annotations are classified as classical genetics or high-throughput (e.g., large scale survey, systematic mutation set). Whenever possible, allele information and additional details are provided. Click "Phenotype Details" to view all phenotype annotations and evidence for this locus as well as phenotypes it shares with other genes.


Classical Genetics

unspecified
Interaction Details

Interaction

Interaction annotations are curated by BioGRID and include physical or genetic interactions observed between at least two genes. An interaction annotation is composed of the interaction type, name of the interactor, assay type (e.g., Two-Hybrid), annotation type (e.g., manual or high-throughput), and a reference, as well as other experimental details. Click "Interaction Details" to view all interaction annotations and evidence for this locus, including an interaction visualization.


Summary
The rps0a null mutant is viable; the null mutant of paralog rps0b is viable; the rps0a rps0b double mutant is inviable.

1006 total interactions for 791 unique genes

Physical Interactions

  • Affinity Capture-MS: 734
  • Affinity Capture-RNA: 7
  • Affinity Capture-Western: 6
  • Co-crystal Structure: 1
  • Co-localization: 1
  • Co-purification: 4
  • Proximity Label-MS: 2
  • Reconstituted Complex: 8
  • Two-hybrid: 1

Genetic Interactions

  • Dosage Rescue: 2
  • Negative Genetic: 170
  • Phenotypic Enhancement: 2
  • Phenotypic Suppression: 4
  • Positive Genetic: 48
  • Synthetic Growth Defect: 8
  • Synthetic Lethality: 6
  • Synthetic Rescue: 2
Regulation Details

Regulation

The number of putative Regulators (genes that regulate it) and Targets (genes it regulates) for the given locus, based on experimental evidence. This evidence includes data generated through high-throughput techniques. Click "Regulation Details" to view all regulation annotations, shared GO enrichment among regulation Targets, and a regulator/target diagram for the locus.


Regulators
25
Targets
0
Expression Details

Expression

Expression data are derived from records contained in the Gene Expression Omnibus (GEO), and are first log2 transformed and normalized. Referenced datasets may contain one or more condition(s), and as a result there may be a greater number of conditions than datasets represented in a single clickable histogram bar. The histogram division at 0.0 separates the down-regulated (green) conditions and datasets from those that are up-regulated (red). Click "Expression Details" to view all expression annotations and details for this locus, including a visualization of genes that share a similar expression pattern.


Summary Paragraph

A summary of the locus, written by SGD Biocurators following a thorough review of the literature. Links to gene names and curated GO terms are included within the Summary Paragraphs.


Last Updated: 2007-02-14

Literature Details

Literature

All manually curated literature for the specified gene, organized into topics according to their relevance to the gene (Primary Literature, Additional Literature, or Review). Click "Literature Details" to view all literature information for this locus, including shared literature between genes.


Primary
18
Additional
77
Reviews
10

Resources