RPS18

Ribosomal protein S18
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 4V6X​, 5AJ0​
Identifiers
Symbols	RPS18 ; D6S218E; HKE3; KE-3; KE3; S18
External IDs	OMIM: 180473 MGI: 98146 HomoloGene: 88764 GeneCards: RPS18 Gene
Gene ontology Molecular function • structural constituent of ribosome • protein binding • rRNA binding • poly(A) RNA binding Cellular component • nucleus • cytoplasm • cytosol • ribosome • focal adhesion • small ribosomal subunit • membrane • cytosolic small ribosomal subunit • extracellular exosome Biological process • nuclear-transcribed mRNA catabolic process, nonsense-mediated decay • translation • translational initiation • translational elongation • translational termination • SRP-dependent cotranslational protein targeting to membrane • gene expression • viral process • viral life cycle • viral transcription • cellular protein metabolic process Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	6222	20084
Ensembl	ENSG00000096150	ENSMUSG00000008668
UniProt	P62269	P62270
RefSeq (mRNA)	NM_022551	NM_011296
RefSeq (protein)	NP_072045	NP_035426
Location (UCSC)	Chr 6: 33.27 – 33.28 Mb	Chr 17: 33.95 – 33.96 Mb
PubMed search

40S ribosomal protein S18 is a protein that in humans is encoded by the RPS18 gene.^[1][2][3]

Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 40S subunit. The protein belongs to the S13P family of ribosomal proteins. It is located in the cytoplasm. The gene product of the E. coli ortholog (ribosomal protein S13) is involved in the binding of fMet-tRNA, and thus, in the initiation of translation. This gene is an ortholog of mouse Ke3. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.^[3]

References

1. Chassin D, Bellet D, Koman A (Mar 1993). "The human homolog of ribosomal protein S18". Nucleic Acids Res 21 (3): 745. doi:10.1093/nar/21.3.745. PMC 309181. PMID 8441687.
2. Kenmochi N, Kawaguchi T, Rozen S, Davis E, Goodman N, Hudson TJ, Tanaka T, Page DC (Aug 1998). "A map of 75 human ribosomal protein genes". Genome Res 8 (5): 509–23. doi:10.1101/gr.8.5.509. PMID 9582194.
3. "Entrez Gene: RPS18 ribosomal protein S18".

Further reading

• Wool IG, Chan YL, Glück A (1996). "Structure and evolution of mammalian ribosomal proteins.". Biochem. Cell Biol. 73 (11-12): 933–47. doi:10.1139/o95-101. PMID 8722009.
• Chan YL, Paz V, Wool IG (1991). "The primary structure of rat ribosomal protein S18.". Biochem. Biophys. Res. Commun. 178 (3): 1212–8. doi:10.1016/0006-291X(91)91022-5. PMID 1872840.
• Chassin D, Bénifla JL, Delattre C, et al. (1994). "Identification of genes overexpressed in tumors through preferential expression screening in trophoblasts.". Cancer Res. 54 (19): 5217–23. PMID 7923143.
• Vladimirov SN, Ivanov AV, Karpova GG, et al. (1996). "Characterization of the human small-ribosomal-subunit proteins by N-terminal and internal sequencing, and mass spectrometry.". Eur. J. Biochem. 239 (1): 144–9. doi:10.1111/j.1432-1033.1996.0144u.x. PMID 8706699.
• Andersen JS, Lyon CE, Fox AH, et al. (2002). "Directed proteomic analysis of the human nucleolus.". Curr. Biol. 12 (1): 1–11. doi:10.1016/S0960-9822(01)00650-9. PMID 11790298.
• Mishra-Gorur K, Singer HA, Castellot JJ (2002). "The S18 ribosomal protein is a putative substrate for Ca2+/calmodulin-activated protein kinase II.". J. Biol. Chem. 277 (37): 33537–40. doi:10.1074/jbc.C200342200. PMID 12145273.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Mungall AJ, Palmer SA, Sims SK, et al. (2003). "The DNA sequence and analysis of human chromosome 6.". Nature 425 (6960): 805–11. doi:10.1038/nature02055. PMID 14574404.
• Kusui K, Sasaki H, Adachi R, et al. (2005). "Ribosomal protein S18 identified as a cofilin-binding protein by using phage display library.". Mol. Cell. Biochem. 262 (1-2): 187–93. doi:10.1023/B:MCBI.0000038234.35936.1c. PMID 15532723.
• Andersen JS, Lam YW, Leung AK, et al. (2005). "Nucleolar proteome dynamics.". Nature 433 (7021): 77–83. doi:10.1038/nature03207. PMID 15635413.
• Yu Y, Ji H, Doudna JA, Leary JA (2005). "Mass spectrometric analysis of the human 40S ribosomal subunit: native and HCV IRES-bound complexes.". Protein Sci. 14 (6): 1438–46. doi:10.1110/ps.041293005. PMC 2253395. PMID 15883184.