40S ribosomal protein S27

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Available structures
PDBHuman UniProt search: PDBe RCSB
AliasesRPS27, MPS-1, MPS1, S27, ribosomal protein S27, DBA17
External IDsOMIM: 603702 HomoloGene: 803 GeneCards: RPS27
Gene location (Human)
Chromosome 1 (human)
Chr.Chromosome 1 (human)[1]
Chromosome 1 (human)
Genomic location for RPS27
Genomic location for RPS27
Band1q21.3Start153,990,762 bp[1]
End153,992,155 bp[1]
RNA expression pattern
PBB GE RPS27 200741 s at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 1: 153.99 – 153.99 Mbn/a
PubMed search[2]n/a
View/Edit Human

40S ribosomal protein S27 also known as metallopan-stimulin 1 or MPS-1 is a protein that in humans is encoded by the RPS27 gene.[3][4][5] Metallopanstimulin is a zinc finger protein proposed to be involved DNA repair as well as oncogenesis.[6]


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 S27E family of ribosomal proteins. It contains a C4-type zinc finger domain that can bind to zinc. The encoded protein has been shown to be able to bind to nucleic acid. It is located in the cytoplasm as a ribosomal component, but it has also been detected in the nucleus. Studies in rat indicate that ribosomal protein S27 is located near ribosomal protein S18 in the 40S subunit and is covalently linked to translation initiation factor eIF3. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.[5]

Clinical significance[edit]

Its expression is increased in several types of malignancy and MPS levels have been reported to drop with treatment of some cancers. It has also been used as a target for some chemotherapies, which aim to chelate out the zinc from the zinc finger motif of the MPS, thus yielding it inactive. These therapies have shown promise for the treatment of cancer in laboratory experiments and some limited clinical trials. Head and neck cancer transfected to overexpress this protein have demonstrated suppressed growth.[6]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000177954 - Ensembl, May 2017
  2. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. ^ Tsui SK, Lee SM, Fung KP, Waye MM, Lee CY (Oct 1996). "Primary structures and sequence analysis of human ribosomal proteins L39 and S27". Biochemistry and Molecular Biology International. 40 (3): 611–6. doi:10.1080/15216549600201203. PMID 8908372.
  4. ^ Fernandez-Pol JA, Klos DJ, Hamilton PD (Oct 1993). "A growth factor-inducible gene encodes a novel nuclear protein with zinc finger structure". The Journal of Biological Chemistry. 268 (28): 21198–204. PMID 8407955.
  5. ^ a b "Entrez Gene: RPS27 ribosomal protein S27 (metallopanstimulin 1)".
  6. ^ a b Fernandez-Pol JA (1996). "Metallopanstimulin as a novel tumor marker in sera of patients with various types of common cancers: implications for prevention and therapy". Anticancer Research. 16 (4B): 2177–85. PMID 8694540.

Further reading[edit]

  • Scurry WC, Stack BC (Dec 2007). "Role of metalloproteins in the clinical management of head and neck squamous cell carcinoma". Head & Neck. 29 (12): 1144–55. CiteSeerX doi:10.1002/hed.20655. PMID 17657798.
  • Stack BC, Hollenbeak CS, Lee CM, Dunphy FR, Lowe VJ, Hamilton PD (December 2004). "Metallopanstimulin as a marker for head and neck cancer". World Journal of Surgical Oncology. 2: 45. doi:10.1186/1477-7819-2-45. PMC 544581. PMID 15598348.
  • Lee WJ, Keefer K, Hollenbeak CS, Stack BC (Oct 2004). "A new assay to screen for head and neck squamous cell carcinoma using the tumor marker metallopanstimulin". Otolaryngology–Head and Neck Surgery. 131 (4): 466–71. doi:10.1016/j.otohns.2004.03.011. PMID 15467619.
  • Wool IG, Chan YL, Glück A (1996). "Structure and evolution of mammalian ribosomal proteins". Biochemistry and Cell Biology. 73 (11–12): 933–47. doi:10.1139/o95-101. PMID 8722009.
  • Fernandez-Pol JA, Klos DJ, Hamilton PD (Aug 1994). "Metallopanstimulin gene product produced in a baculovirus expression system is a nuclear phosphoprotein that binds to DNA". Cell Growth & Differentiation. 5 (8): 811–25. PMID 7986747.
  • Vladimirov SN, Ivanov AV, Karpova GG, Musolyamov AK, Egorov TA, Thiede B, Wittmann-Liebold B, Otto A (Jul 1996). "Characterization of the human small-ribosomal-subunit proteins by N-terminal and internal sequencing, and mass spectrometry". European Journal of Biochemistry / FEBS. 239 (1): 144–9. doi:10.1111/j.1432-1033.1996.0144u.x. PMID 8706699.
  • Kenmochi N, Kawaguchi T, Rozen S, Davis E, Goodman N, Hudson TJ, Tanaka T, Page DC (May 1998). "A map of 75 human ribosomal protein genes". Genome Research. 8 (5): 509–23. doi:10.1101/gr.8.5.509. PMID 9582194.
  • Yoshihama M, Uechi T, Asakawa S, Kawasaki K, Kato S, Higa S, Maeda N, Minoshima S, Tanaka T, Shimizu N, Kenmochi N (Mar 2002). "The human ribosomal protein genes: sequencing and comparative analysis of 73 genes". Genome Research. 12 (3): 379–90. doi:10.1101/gr.214202. PMC 155282. PMID 11875025.
  • Atsuta Y, Aoki N, Sato K, Oikawa K, Nochi H, Miyokawa N, Hirata S, Kimura S, Sasajima T, Katagiri M (Aug 2002). "Identification of metallopanstimulin-1 as a member of a tumor associated antigen in patients with breast cancer". Cancer Letters. 182 (1): 101–7. doi:10.1016/S0304-3835(02)00068-X. PMID 12175529.
  • Martin-Lluesma S, Stucke VM, Nigg EA (Sep 2002). "Role of Hec1 in spindle checkpoint signaling and kinetochore recruitment of Mad1/Mad2". Science. 297 (5590): 2267–70. doi:10.1126/science.1075596. PMID 12351790.
  • Liu ST, Chan GK, Hittle JC, Fujii G, Lees E, Yen TJ (Apr 2003). "Human MPS1 kinase is required for mitotic arrest induced by the loss of CENP-E from kinetochores". Molecular Biology of the Cell. 14 (4): 1638–51. doi:10.1091/mbc.02-05-0074. PMC 153128. PMID 12686615.
  • Bouwmeester T, Bauch A, Ruffner H, Angrand PO, Bergamini G, Croughton K, Cruciat C, Eberhard D, Gagneur J, Ghidelli S, Hopf C, Huhse B, Mangano R, Michon AM, Schirle M, Schlegl J, Schwab M, Stein MA, Bauer A, Casari G, Drewes G, Gavin AC, Jackson DB, Joberty G, Neubauer G, Rick J, Kuster B, Superti-Furga G (Feb 2004). "A physical and functional map of the human TNF-alpha/NF-kappa B signal transduction pathway". Nature Cell Biology. 6 (2): 97–105. doi:10.1038/ncb1086. PMID 14743216.
  • Andersen JS, Lam YW, Leung AK, Ong SE, Lyon CE, Lamond AI, Mann M (Jan 2005). "Nucleolar proteome dynamics". Nature. 433 (7021): 77–83. doi:10.1038/nature03207. PMID 15635413.
  • Yu Y, Ji H, Doudna JA, Leary JA (Jun 2005). "Mass spectrometric analysis of the human 40S ribosomal subunit: native and HCV IRES-bound complexes". Protein Science. 14 (6): 1438–46. doi:10.1110/ps.041293005. PMC 2253395. PMID 15883184.
  • Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
  • Bhonde MR, Hanski ML, Budczies J, Cao M, Gillissen B, Moorthy D, Simonetta F, Scherübl H, Truss M, Hagemeier C, Mewes HW, Daniel PT, Zeitz M, Hanski C (Mar 2006). "DNA damage-induced expression of p53 suppresses mitotic checkpoint kinase hMps1: the lack of this suppression in p53MUT cells contributes to apoptosis". The Journal of Biological Chemistry. 281 (13): 8675–85. doi:10.1074/jbc.M511333200. PMID 16446370.
  • Wang YW, Qu Y, Li JF, Chen XH, Liu BY, Gu QL, Zhu ZG (Aug 2006). "In vitro and in vivo evidence of metallopanstimulin-1 in gastric cancer progression and tumorigenicity". Clinical Cancer Research. 12 (16): 4965–73. doi:10.1158/1078-0432.CCR-05-2316. PMID 16914586.
  • Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M (Nov 2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.