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 phosphoprotein that is a component of the 60S subunit. The protein, which is a functional equivalent of the Escherichia coliL7/L12 ribosomal protein, belongs to the L12P family of ribosomal proteins. It plays an important role in the elongation step of protein synthesis. Unlike most ribosomal proteins, which are basic, the encoded protein is acidic. Its C-terminal end is nearly identical to the C-terminal ends of the ribosomal phosphoproteins P0 and P2. The P1 protein can interact with P0 and P2 to form a pentameric complex consisting of P1 and P2 dimers, and a P0 monomer. The protein is located in the cytoplasm. Two alternatively spliced transcript variants that encode different proteins have been observed. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.[1]
↑Tchórzewski M, Boldyreff B, Issinger OG, Grankowski N (July 2000). "Analysis of the protein-protein interactions between the human acidic ribosomal P-proteins: evaluation by the two hybrid system". The International Journal of Biochemistry & Cell Biology. 32 (7): 737–46. doi:10.1016/S1357-2725(00)00017-0. PMID10856704.
Further reading
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. PMID8722009.
Kato S, Sekine S, Oh SW, Kim NS, Umezawa Y, Abe N, Yokoyama-Kobayashi M, Aoki T (December 1994). "Construction of a human full-length cDNA bank". Gene. 150 (2): 243–50. doi:10.1016/0378-1119(94)90433-2. PMID7821789.
Tchórzewski M, Boldyreff B, Issinger OG, Grankowski N (July 2000). "Analysis of the protein-protein interactions between the human acidic ribosomal P-proteins: evaluation by the two hybrid system". The International Journal of Biochemistry & Cell Biology. 32 (7): 737–46. doi:10.1016/S1357-2725(00)00017-0. PMID10856704.
Chan SH, Hung FS, Chan DS, Shaw PC (April 2001). "Trichosanthin interacts with acidic ribosomal proteins P0 and P1 and mitotic checkpoint protein MAD2B". European Journal of Biochemistry. 268 (7): 2107–12. doi:10.1046/j.1432-1327.2001.02091.x. PMID11277934.
Uechi T, Tanaka T, Kenmochi N (March 2001). "A complete map of the human ribosomal protein genes: assignment of 80 genes to the cytogenetic map and implications for human disorders". Genomics. 72 (3): 223–30. doi:10.1006/geno.2000.6470. PMID11401437.
Kang MJ, Ahn HS, Lee JY, Matsuhashi S, Park WY (April 2002). "Up-regulation of PDCD4 in senescent human diploid fibroblasts". Biochemical and Biophysical Research Communications. 293 (1): 617–21. doi:10.1016/S0006-291X(02)00264-4. PMID12054647.
Tchórzewski M, Krokowski D, Rzeski W, Issinger OG, Grankowski N (February 2003). "The subcellular distribution of the human ribosomal "stalk" components: P1, P2 and P0 proteins". The International Journal of Biochemistry & Cell Biology. 35 (2): 203–11. doi:10.1016/S1357-2725(02)00133-4. PMID12479870.
Shu H, Chen S, Bi Q, Mumby M, Brekken DL (March 2004). "Identification of phosphoproteins and their phosphorylation sites in the WEHI-231 B lymphoma cell line". Molecular & Cellular Proteomics. 3 (3): 279–86. doi:10.1074/mcp.D300003-MCP200. PMID14729942.
Giorgianni F, Beranova-Giorgianni S, Desiderio DM (March 2004). "Identification and characterization of phosphorylated proteins in the human pituitary". Proteomics. 4 (3): 587–98. doi:10.1002/pmic.200300584. PMID14997482.
Tao WA, Wollscheid B, O'Brien R, Eng JK, Li XJ, Bodenmiller B, Watts JD, Hood L, Aebersold R (August 2005). "Quantitative phosphoproteome analysis using a dendrimer conjugation chemistry and tandem mass spectrometry". Nature Methods. 2 (8): 591–8. doi:10.1038/nmeth776. PMID16094384.
Gevaert K, Staes A, Van Damme J, De Groot S, Hugelier K, Demol H, Martens L, Goethals M, Vandekerckhove J (September 2005). "Global phosphoproteome analysis on human HepG2 hepatocytes using reversed-phase diagonal LC". Proteomics. 5 (14): 3589–99. doi:10.1002/pmic.200401217. PMID16097034.
Stelzl U, Worm U, Lalowski M, Haenig C, Brembeck FH, Goehler H, Stroedicke M, Zenkner M, Schoenherr A, Koeppen S, Timm J, Mintzlaff S, Abraham C, Bock N, Kietzmann S, Goedde A, Toksöz E, Droege A, Krobitsch S, Korn B, Birchmeier W, Lehrach H, Wanker EE (September 2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. PMID16169070.
Beranova-Giorgianni S, Zhao Y, Desiderio DM, Giorgianni F (2006). "Phosphoproteomic analysis of the human pituitary". Pituitary. 9 (2): 109–20. doi:10.1007/s11102-006-8916-x. PMID16807684.