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MRPS27

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 that may be a functional partner of the death associated protein 3 (DAP3). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2013]
Protein class

Ribosomal proteins

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Cardiomyocytes)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Component of the mitochondrial small ribosomal subunit (mt-SSU) (PubMed:22841715, PubMed:25838379). Mature mammalian 55S mitochondrial ribosomes consist of a small (28S) and a large (39S) subunit (PubMed:25838379). The 28S small subunit contains a 12S ribosomal RNA (12S mt-rRNA) and 30 different proteins (PubMed:25838379). The 39S large subunit contains a 16S rRNA (16S mt-rRNA), a copy of mitochondrial valine transfer RNA (mt-tRNA(Val)), which plays an integral structural role, and 52 different proteins (PubMed:25838379). Interacts with NOA1 (PubMed:19103604). Interacts with MIEF1 upstream open reading frame protein (PubMed:30215512). Interacts with METTL17 (By similarity).

Molecular function

Ribonucleoprotein, Ribosomal protein, RNA-binding, rRNA-binding, tRNA-binding

More Types Infomation

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