40S ribosomal protein S5 explained

40S ribosomal protein S5 is a ribosomal subunit of the Eukaryotic ribosome (80S) complex. In humans it is encoded by the RPS5 gene.^{[1] [2] [3]}

Ribosomes, the organelles that catalyze protein synthesis, in eukaryotes, consist of a small 40S subunit and a large 60S subunit (whereas prokaryotic ribosomes are 70 Svedberg units, composed of 50S and 30S subunits). They are located in the cytoplasm. Together these subunits are composed of four RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the eukaryotic 40S subunit. The protein belongs to the S7P family of ribosomal proteins. Variable expression of this gene in colorectal cancers compared to adjacent normal tissues has been observed, although no correlation between the level of expression and the severity of the disease has been found. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.^[3]

Further reading

• Wool IG, Chan YL, Glück A . Structure and evolution of mammalian ribosomal proteins. . Biochem. Cell Biol. . 73 . 11–12 . 933–47 . 1996 . 8722009 . 10.1139/o95-101 .
• Kato S, Sekine S, Oh SW, etal . Construction of a human full-length cDNA bank. . Gene . 150 . 2 . 243–50 . 1995 . 7821789 . 10.1016/0378-1119(94)90433-2 .
• Maruyama K, Sugano S . Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides. . Gene . 138 . 1–2 . 171–4 . 1994 . 8125298 . 10.1016/0378-1119(94)90802-8 .
• Mundus DA, Bulygin KN, Yamkovoy VI, etal . Structural arrangement of the codon-anticodon interaction area in human placenta ribosomes. Affinity labelling of the 40S subunits by derivatives of oligoribonucleotides containing the AUG codon. . Biochim. Biophys. Acta . 1173 . 3 . 273–82 . 1993 . 8318536 . 10.1016/0167-4781(93)90124-v.
• Vladimirov SN, Ivanov AV, Karpova GG, etal . Characterization of the human small-ribosomal-subunit proteins by N-terminal and internal sequencing, and mass spectrometry. . Eur. J. Biochem. . 239 . 1 . 144–9 . 1996 . 8706699 . 10.1111/j.1432-1033.1996.0144u.x . free .
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, etal . Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library. . Gene . 200 . 1–2 . 149–56 . 1997 . 9373149 . 10.1016/S0378-1119(97)00411-3 .
• Bortoluzzi S, d'Alessi F, Romualdi C, Danieli GA . Differential expression of genes coding for ribosomal proteins in different human tissues. . Bioinformatics . 17 . 12 . 1152–7 . 2002 . 11751223 . 10.1093/bioinformatics/17.12.1152 . free .
• Andersen JS, Lyon CE, Fox AH, etal . Directed proteomic analysis of the human nucleolus. . Curr. Biol. . 12 . 1 . 1–11 . 2002 . 11790298 . 10.1016/S0960-9822(01)00650-9 . 14132033 . free . 2002CBio...12....1A .
• Yoshihama M, Uechi T, Asakawa S, etal . The human ribosomal protein genes: sequencing and comparative analysis of 73 genes. . Genome Res. . 12 . 3 . 379–90 . 2002 . 11875025 . 10.1101/gr.214202 . 155282 .
• Strausberg RL, Feingold EA, Grouse LH, etal . 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 . 2003 . 12477932 . 10.1073/pnas.242603899 . 139241 . 2002PNAS...9916899M . free .
• Malygin A, Baranovskaya O, Ivanov A, Karpova G . Expression and purification of human ribosomal proteins S3, S5, S10, S19, and S26. . Protein Expr. Purif. . 28 . 1 . 57–62 . 2003 . 12651107 . 10.1016/S1046-5928(02)00652-6 .
• Gerhard DS, Wagner L, Feingold EA, etal . The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). . Genome Res. . 14 . 10B . 2121–7 . 2004 . 15489334 . 10.1101/gr.2596504 . 528928 .
• Andersen JS, Lam YW, Leung AK, etal . Nucleolar proteome dynamics. . Nature . 433 . 7021 . 77–83 . 2005 . 15635413 . 10.1038/nature03207 . 2005Natur.433...77A . 4344740 .
• Yu Y, Ji H, Doudna JA, Leary JA . Mass spectrometric analysis of the human 40S ribosomal subunit: native and HCV IRES-bound complexes. . Protein Sci. . 14 . 6 . 1438–46 . 2005 . 15883184 . 10.1110/ps.041293005 . 2253395 .

Notes and References

1. Frigerio JM, Dagorn JC, Iovanna JL . Cloning, sequencing and expression of the L5, L21, L27a, L28, S5, S9, S10 and S29 human ribosomal protein mRNAs . Biochim Biophys Acta . 1262 . 1 . 64–8 . Jul 1995 . 7772601 . 10.1016/0167-4781(95)00045-i.
2. Kenmochi N, Kawaguchi T, Rozen S, Davis E, Goodman N, Hudson TJ, Tanaka T, Page DC . A map of 75 human ribosomal protein genes . Genome Res . 8 . 5 . 509–23 . Aug 1998 . 9582194 . 10.1101/gr.8.5.509. free .
3. Web site: Entrez Gene: RPS5 ribosomal protein S5.