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Rabbit Anti-MRPS33 antibody
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. The 28S subunit of the mammalian mitoribosome may play a crucial and characteristic role in translation initiation. This gene encodes a 28S subunit protein that is one of the more highly conserved mitochondrial ribosomal proteins among mammals, Drosophila and C. elegans. Splice variants that differ in the 5' UTR have been found for this gene; all variants encode the same protein. Pseudogenes corresponding to this gene are found on chromosomes 1q, 4p, 4q, and 20q [provided by RefSeq, Jul 2008]
Function:
Displays low GTPase activity and exist predominantly in the GTP-bound form.
Subcellular Location:
Cell membrane; Lipid-anchor; Cytoplasmic side
Tissue Specificity:
Highly expressed in heart and brain.
Similarity:
Belongs to the small GTPase superfamily. Di-Ras family.
SWISS:
Q9Y291
Gene ID:
51650
Database links:
Entrez Gene: 51650 Human
Entrez Gene: 14548 Mouse
Omim: 611993 Human
SwissProt: Q9Y291 Human
SwissProt: Q9D2R8 Mouse
Unigene: 416207 Human
Unigene: 377071 Mouse
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