MRPL49
Large ribosomal subunit protein mL49
Also known as: C11orf4, L49mt, NOF, NOF1, RM49_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13405
- Gene
- MRPL49
- Ensembl
- ENSG00000149792
- Chromosome
- 11
- Canonical length
- 166 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins, Ribosomal proteins
OverviewNCBI Gene
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. Pseudogenes corresponding to this gene are found on chromosomes 5q and 8p. [provided by RefSeq, May 2011]
Canonical amino-acid sequenceUniProt
166 residues, UniProt reviewed canonical sequence.
>Q13405|MRPL49
1 MAATMFRATL RGWRTGVQRG CGLRLLSQTQ GPPDYPRFVE SVDEYQFVER LLPATRIPDP
61 PKHEHYPTPS GWQPPRDPPP NLPYFVRRSR MHNIPVYKDI THGNRQMTVI RKVEGDIWAL
121 QKDVEDFLSP LLGKTPVTQV NEVTGTLRIK GYFDQELKAW LLEKGFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MRPL49 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.46
- Highest tissue expression
- 83 nTPM
Expression across tissuesHPA
Tissue
- adrenal gland: 83 nTPM
- kidney: 51 nTPM
- liver: 48 nTPM
- choroid plexus: 47 nTPM
- thyroid gland: 43 nTPM
- ovary: 43 nTPM
Single-cell type
- syncytiotrophoblasts: 142 nCPM
- esophageal apical cells: 119 nCPM
- migrating cytotrophoblasts: 73 nCPM
- cytotrophoblasts: 72 nCPM
- esophageal suprabasal cells: 59 nCPM
- esophageal basal cells: 57 nCPM
Immune cell
- basophil: 134 nTPM
- total PBMC: 96 nTPM
- NK-cell: 96 nTPM
- memory CD8 T-cell: 84 nTPM
- naive CD4 T-cell: 81 nTPM
- eosinophil: 79 nTPM
Brain region
- choroid plexus: 33 nTPM
- hypothalamus: 33 nTPM
- thalamus: 28 nTPM
- pons: 27 nTPM
- cerebral cortex: 27 nTPM
- basal ganglia: 27 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MRPL49.
Disease | AllUniProt
Conditions MRPL49 is implicated in, by any mechanism.
- Combined oxidative phosphorylation deficiency 60 (COXPD60) MIM:621195
Disease | GeneticClinVar
7 pathogenic / likely-pathogenic of 48 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Combined oxidative phosphorylation deficiency 60
- Perrault syndrome 1
- Mitochondrial disease
- Combined oxidative phosphorylation defect type 2
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.5
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.28
- DepMap mean gene effect
- -0.71
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Large ribosomal subunit protein mL49
- Mitochondrial large subunit ribosomal protein (Img2)
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MRPL49 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads MRPL49 as an antibody target. Whether an autoantibody or antibody against MRPL49 could matter depends on whether native MRPL49 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MRPL49 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label MRPL49 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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