MRPL55
protein-codingmitochondrial ribosomal protein L55, the group of Large 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 39S subunit protein. Multiple transcript variants encoding two different isoforms were identified through sequence analysis. [provided by RefSeq, Jul 2008]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~2.6 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 MRPL55 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_181463.3. 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 | 2 | |||
| missense | 23 | 23 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 25 | 0 | 1 | 26 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_852128.1 | 3 | MANE Select | |
| Ensembl | ENSP00000337342.3 | 3 | MANE Select | |
| RefSeq | NP_001308213.1 | 3 | Standard | |
| RefSeq | NP_852106.1 | 3 | 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
- translation
- mitochondrial translational elongation
- mitochondrial translational termination
Molecular Function
- structural constituent of ribosome
Cellular Component
- mitochondrion
- mitochondrial inner membrane
- mitochondrial large ribosomal subunit
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000366731
- Coding exons
- 4
- Length
- 2634
- Individuals with no LoFs
- 125334
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 12
- Defined
- 125346
- p
- 0.0000479
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.765 | 86 | 108 | 0.793 | 0.00000764 | 1021 |
| Missense (PolyPhen) | 29 | 38.636 | 0.7506 | 370 | ||
| Synonymous | 0.383 | 40 | 43.2 | 0.926 | 0.00000271 | 356 |
| Loss of Function | 1.35 | 4 | 8.17 | 0.490 | 6.05e-7 | 64 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0.000046 | 0.000046 | rare |
| European (Non-Finnish) | 0.000071 | 0.000071 | rare |
| South Asian | 0.000065 | 0.000065 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
Recessive Scores
- pRec
- 0.0865
Intolerance Scores
- LoFtool
- 0.962
- RVIS EVS
- 0.28
- RVIS percentile EVS
- 71.27
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- S
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.971
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |