Recombinant Human 28S ribosomal protein S27, mitochondrial (MRPS27)

Uniprot Id

Q92552

Target Species

Human

Target Name

MRPS27

Target Full Name

Small ribosomal subunit protein mS27

Target Function

RNA-binding component of the mitochondrial small ribosomal subunit (mt-SSU) that plays a role in mitochondrial protein synthesis. Stimulates mitochondrial mRNA translation of subunit components of the mitochondrial electron transport chain. Binds to the mitochondrial 12S rRNA (12S mt-rRNA) and tRNA(Glu). Involved also in positive regulation of cell proliferation and tumor cell growth.

Target Subcellular Location

Cytoplasm. Mitochondrion.

Target Protein Families

Mitochondrion-specific ribosomal protein mS27 family

Target Tissue Specificity

Overexpressed in hepatocellular carcinoma tissues compared with adjacent non-tumoral liver tissues (at protein level). Ubiquitous.

Target Synonyms

28S ribosomal protein S27; 28S ribosomal protein S27, mitochondrial; KIAA0264; Mitochondrial 28S ribosomal protein S27; mitochondrial; mitochondrial ribosomal protein S27; MRP-S27; MRPS27; RT27_HUMAN; S27mt

Target Background

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.