Plastin-2 is a protein that in humans is encoded by the LCP1gene.[1]
Function
Plastins are a family of actin-binding proteins that are conserved throughout eukaryote evolution and expressed in most tissues of higher eukaryotes. In humans, two ubiquitous plastin isoforms (L and T) have been identified. Plastin 1 (otherwise known as fimbrin) is a third distinct plastin isoform which is specifically expressed at high levels in the small intestine. The L isoform is expressed only in hemopoietic cell lineages, while the T isoform has been found in all other normal cells of solid tissues that have replicative potential (fibroblasts, endothelial cells, epithelial cells, melanocytes, etc.). However, L-plastin has been found in many types of malignant human cells of non-hemopoietic origin suggesting that its expression is induced accompanying tumorigenesis in solid tissues.[2]
References
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Namba Y, Ito M, Zu Y, Shigesada K, Maruyama K (October 1992). "Human T cell L-plastin bundles actin filaments in a calcium-dependent manner". Journal of Biochemistry. 112 (4): 503–7. PMID1491005.
Zu YL, Shigesada K, Nishida E, Kubota I, Kohno M, Hanaoka M, Namba Y (September 1990). "65-kilodalton protein phosphorylated by interleukin 2 stimulation bears two putative actin-binding sites and two calcium-binding sites". Biochemistry. 29 (36): 8319–24. doi:10.1021/bi00488a017. PMID2252891.
Matsushima K, Shiroo M, Kung HF, Copeland TD (May 1988). "Purification and characterization of a cytosolic 65-kilodalton phosphoprotein in human leukocytes whose phosphorylation is augmented by stimulation with interleukin 1". Biochemistry. 27 (10): 3765–70. doi:10.1021/bi00410a037. PMID3261603.
Kondo I, Shin K, Honmura S, Nakajima H, Yamamura E, Satoh H, Terauchi M, Usuki Y, Takita H, Hamaguchi H (1986). "A case report of a patient with retinoblastoma and chromosome 13q deletion: assignment of a new gene (gene for LCP1) on human chromosome 13". Human Genetics. 71 (3): 263–6. doi:10.1007/BF00284588. PMID3864729.
Maruyama K, Sugano S (January 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Lin CS, Park T, Chen ZP, Leavitt J (February 1993). "Human plastin genes. Comparative gene structure, chromosome location, and differential expression in normal and neoplastic cells". The Journal of Biological Chemistry. 268 (4): 2781–92. PMID8428952.
Lin CS, Chen ZP, Park T, Ghosh K, Leavitt J (February 1993). "Characterization of the human L-plastin gene promoter in normal and neoplastic cells". The Journal of Biological Chemistry. 268 (4): 2793–801. PMID8428953.
Jones SL, Brown EJ (June 1996). "FcgammaRII-mediated adhesion and phagocytosis induce L-plastin phosphorylation in human neutrophils". The Journal of Biological Chemistry. 271 (24): 14623–30. doi:10.1074/jbc.271.24.14623. PMID8663066.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (October 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Okumura Y, Yano M, Murakami M, Mori S, Towatari T, Kido H (January 1999). "The extracellular processing of HIV-1 envelope glycoprotein gp160 by human plasmin". FEBS Letters. 442 (1): 39–42. doi:10.1016/S0014-5793(98)01612-3. PMID9923600.
Wang J, Brown EJ (August 1999). "Immune complex-induced integrin activation and L-plastin phosphorylation require protein kinase A". The Journal of Biological Chemistry. 274 (34): 24349–56. doi:10.1074/jbc.274.34.24349. PMID10446213.
Lin CS, Lau A, Yeh CC, Chang CH, Lue TF (January 2000). "Upregulation of L-plastin gene by testosterone in breast and prostate cancer cells: identification of three cooperative androgen receptor-binding sequences". DNA and Cell Biology. 19 (1): 1–7. doi:10.1089/104454900314654. PMID10668786.
Jia J, Han Q, Borregaard N, Lollike K, Cygler M (July 2000). "Crystal structure of human grancalcin, a member of the penta-EF-hand protein family". Journal of Molecular Biology. 300 (5): 1271–81. doi:10.1006/jmbi.2000.3925. PMID10903868.
Lollike K, Johnsen AH, Durussel I, Borregaard N, Cox JA (May 2001). "Biochemical characterization of the penta-EF-hand protein grancalcin and identification of L-plastin as a binding partner". The Journal of Biological Chemistry. 276 (21): 17762–9. doi:10.1074/jbc.M100965200. PMID11279160.