MRPL18
protein-codingmitochondrial ribosomal protein L18, the group of Large subunit mitochondrial ribosomal proteins|Mitochondrial ribosomal proteins
Gene summary
This nuclear gene encodes a protein component of the larger 39S subunit of mitochondrial ribosome. This protein may also aid in the import of nuclear-encoded 5S rRNA into mitochondria. Alternative splicing results in multiple transcript variants, most of which are not predicted to encode a protein. A pseudogene of this gene is found on chromosome 16. [provided by RefSeq, Jan 2016]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~8.6 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 MRPL18 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_014161.5. 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 | 31 | 1 | 32 | |||
| nonsense | 1 | 1 | ||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 34 | 1 | 0 | 35 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_054880.2 | 4 | MANE Select | |
| Ensembl | ENSP00000356001.4 | 4 | MANE Select | |
| RefSeq | NP_001305746.1 | 4 | Standard | |
| Ensembl | ENSP00000527733.1 | 4 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Ribosome - Homo sapiens (human)
- Cellular response to heat stress
- HSF1 activation
- Attenuation phase
- HSF1-dependent transactivation
Biological Process
- translation
- rRNA import into mitochondrion
- mitochondrial translational elongation
- mitochondrial translational termination
Molecular Function
- structural constituent of ribosome
- 5S rRNA binding
Cellular Component
- extracellular space
- mitochondrion
- mitochondrial inner membrane
- mitochondrial ribosome
- mitochondrial large ribosomal subunit
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000367034
- Coding exons
- 4
- Length
- 8625
- Individuals with no LoFs
- 125727
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 21
- Defined
- 125748
- p
- 0.0000835
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -0.355 | 118 | 108 | 1.10 | 0.00000552 | 1151 |
| Missense (PolyPhen) | 38 | 37.038 | 1.026 | 381 | ||
| Synonymous | -0.410 | 45 | 41.6 | 1.08 | 0.00000209 | 374 |
| Loss of Function | 0.892 | 7 | 10.1 | 0.697 | 6.12e-7 | 96 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000058 | 0.000058 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00011 | 0.00011 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.00015 | 0.00015 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Together with thiosulfate sulfurtransferase (TST), acts as a mitochondrial import factor for the cytosolic 5S rRNA. The precursor form shows RNA chaperone activity; is able to fold the 5S rRNA into an import-competent conformation that is recognized by rhodanese (TST). Both the cytoplasmic and mitochondrial forms are able to bind to the helix IV-loop D in the gamma domain of the 5S rRNA. {ECO:0000269|PubMed:21685364}.;
Recessive Scores
- pRec
- 0.113
Intolerance Scores
- LoFtool
- 0.713
- RVIS EVS
- 0.33
- RVIS percentile EVS
- 73.11
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- E
- Essential (gene trap)
- E
- Indispensability pred.
- E
- Indispensability score
- 0.990
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |