MRPS26
protein-codingmitochondrial ribosomal protein S26, the group of Small subunit mitochondrial ribosomal proteins|Mitochondrial ribosomal proteins
Gene summary
Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 28S subunit protein. This gene lies adjacent to and downstream of the gonadotropin-releasing hormone precursor gene. [provided by RefSeq, Jul 2008]
- C20orf193
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~2.2 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to MRPS26 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_030811.4. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 44 | 4 | 48 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 45 | 4 | 0 | 49 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_110438.1 | 4 | MANE Select | |
| Ensembl | ENSP00000369682.3 | 4 | MANE Select | |
| Ensembl | ENSP00000555124.1 | 4 | Standard | |
| Ensembl | ENSP00000555124.1 | 4 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Mitochondrial translation initiation
- Translation
- Metabolism of proteins
- Mitochondrial translation elongation
- Mitochondrial translation termination
Biological Process
- DNA damage response, detection of DNA damage
- mitochondrial translational elongation
- mitochondrial translational termination
Molecular Function
- RNA binding
Cellular Component
- nucleoplasm
- mitochondrion
- mitochondrial inner membrane
- mitochondrial small ribosomal subunit
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000380325
- Coding exons
- 4
- Length
- 2310
- Individuals with no LoFs
- 125709
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 11
- Defined
- 125720
- p
- 0.0000437
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.483 | 108 | 123 | 0.878 | 0.00000608 | 1279 |
| Missense (PolyPhen) | 27 | 35.044 | 0.77047 | 398 | ||
| Synonymous | 0.717 | 46 | 52.6 | 0.874 | 0.00000241 | 421 |
| Loss of Function | 0.0284 | 9 | 9.09 | 0.990 | 4.80e-7 | 90 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000063 | 0.000062 | rare |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00011 | 0.00011 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000048 | 0.000044 | rare |
| South Asian | 0.000067 | 0.000065 | rare |
| Other | 0.00017 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
Recessive Scores
- pRec
- 0.0871
Essentials
- Essential (CRISPR)
- E
- Essential (CRISPR2)
- E
- Essential (gene trap)
- K
- Indispensability pred.
- E
- Indispensability score
- 0.983
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |