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Available structures
PDB Ortholog search: PDBe RCSB
Aliases MRPS24, MRP-S24, S24mt, bMRP-47, bMRP47, HSPC335, mitochondrial ribosomal protein S24
External IDs MGI: 1928142 HomoloGene: 57043 GeneCards: MRPS24
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 7: 43.87 – 43.87 Mb Chr 11: 5.7 – 5.72 Mb
PubMed search [1] [2]
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28S ribosomal protein S24, mitochondrial is a protein that in humans is encoded by the MRPS24 gene.[3][4][5]

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. A pseudogene corresponding to this gene is found on chromosome 11.[5]


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ Xu L, He GP, Li A, Ro HS (Apr 1994). "Molecular characterization of the mouse ribosomal protein S24 multigene family: a uniquely expressed intron-containing gene with cell-specific expression of three alternatively spliced mRNAs". Nucleic Acids Res. 22 (4): 646–55. doi:10.1093/nar/22.4.646. PMC 307856Freely accessible. PMID 8127713. 
  4. ^ Cavdar Koc E, Burkhart W, Blackburn K, Moseley A, Spremulli LL (May 2001). "The small subunit of the mammalian mitochondrial ribosome. Identification of the full complement of ribosomal proteins present". J Biol Chem. 276 (22): 19363–74. doi:10.1074/jbc.M100727200. PMID 11279123. 
  5. ^ a b "Entrez Gene: MRPS24 mitochondrial ribosomal protein S24". 

Further reading[edit]