MRPL3 / YMR024W Overview


Standard Name
MRPL3 1
Systematic Name
YMR024W
SGD ID
SGD:S000004626
Aliases
mL44 4 5 , YmL3 6
Feature Type
ORF , Verified
Description
Mitochondrial ribosomal protein of the large subunit; located in close proximity to the polypeptide exit channel of the ribosome; mutations in human homolog MRPL44 cause childhood cardiomyopathy; human MRPL44 deficiency results in inefficient assembly of the mitochondrial ribosome, and in tissue-specific respiratory chain deficiency, manifesting as either Complex I+Complex IV or Complex IV deficiency, depending on a cell type 2 3
Name Description
Mitochondrial Ribosomal Protein, Large subunit
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
MRPL3/YMR024W is located on the right arm of chromosome XIII between alanine tRNA and CSI1 signalosome subunit; coding sequence is 1173 nucleotides long with 4 SNPs, 2 of which cause amino acid polymorphisms
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.


Summary
Mrpl3p is 390 amino acids long, shorter-lived, low in abundance; contains a ribonuclease III domain and a dsRNA-binding domain; acetylated on K148, succinylated on 4 residues
Length (a.a.)
390
Mol. Weight (Da)
44015.4
Isoelectric Point
9.9
Median Abundance (molecules/cell)
5017 +/- 2430
Half-life (hr)
8.4

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 MRPL3 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
Component of the large subunit of the mitochondrial ribosome, which mediates translation in the mitochondrion

View computational annotations

Molecular Function

Manually Curated

Biological Process

Manually Curated

Cellular Component

Manually Curated

Complex

Macromolecular complex annotations are imported from the Complex Portal. These annotations have been derived from physical molecular interaction evidence extracted from the literature and cross-referenced in the entry, or by curator inference from information on homologs in closely related species or by inference from scientific background.


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.


Summary
MRPL3/YMR024W is a non-essential gene; null mutants are viable but exhibit a range of phenotypes including decreased cell size, decreased chronological lifespan, decreased endocytosis, increased killer toxin resistance, increased oxidative stress resistance, decreased stress resistance, decreased rate of nitrogen source utilization, decreased UV resistance, and decreased vegetative growth rate. Overexpression of MRPL3 results in increased filamentous growth.
Disease Details

Disease

Disease Annotations consist of three mandatory components: a gene product, a term from the Disease Ontology (DO) controlled vocabulary and an evidence code. SGD provides manually curated DO Annotations derived from the literature. Click "Disease Details" to view all Disease information and evidence for this locus as well as diseases it shares with other genes.


Summary
Yeast MRPL3 is homologous to human MRPL44 and has been used to study mutations found in patients with combined oxidative phosphorylation deficiency 16, which presents as childhood-onset hypertrophic cardiomyopathy and progressive multi-system disease
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
Mrpl3p interacts physically with proteins involved in mitochondrial translation; MRPL3 interacts genetically with genes involved in transcription

165 total interactions for 135 unique genes

Physical Interactions

  • Affinity Capture-MS: 131
  • Affinity Capture-RNA: 10
  • Co-fractionation: 1
  • Co-localization: 1
  • Cross-Linking-MS (XL-MS): 1
  • Proximity Label-MS: 6
  • Reconstituted Complex: 1
  • Two-hybrid: 3

Genetic Interactions

  • Negative Genetic: 5
  • Phenotypic Suppression: 1
  • Synthetic Growth Defect: 2
  • Synthetic Rescue: 3
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.


Summary
MRPL3 promoter is bound by Uga3p in response to heat
Regulators
2
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: 2024-12-10

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
8
Additional
16
Reviews
9

Resources