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2. Both the changes of six amino acids and the C-terminal truncation caused by a one-base insertion in the defective env gene of Friend spleen focus-forming virus significantly affect the pathogenic activity of the encoded leukemogenic membrane glycoprotein (gp55). Watanabe N, Yugawa T, Ikawa Y, Amanuma H. J Virol; 1995 Dec; 69(12):7606-11. PubMed ID: 7494268 [Abstract] [Full Text] [Related]
6. Sequence flexibility in the polytropic env gp70-derived region of the membrane glycoprotein (gp55) of Friend spleen focus-forming virus affects its biological activity. Yugawa T, Amanuma H. J Virol; 1998 Mar; 72(3):2272-9. PubMed ID: 9499086 [Abstract] [Full Text] [Related]
7. Ex vivo and in vivo biological effects of a truncated form of the receptor tyrosine kinase stk when activated by interaction with the friend spleen focus-forming virus envelope glycoprotein or by point mutation. Rulli K, Yugawa T, Hanson C, Thompson D, Ruscetti S, Nishigaki K. J Virol; 2004 May; 78(9):4573-81. PubMed ID: 15078939 [Abstract] [Full Text] [Related]
9. Role of gp55 in restoring the sensitivity of Friend murine erythroleukemia cells to erythropoietin by exposure to dimethyl sulfoxide. Lin TS, Ishiguro K, Sartorelli AC. Oncol Res; 1998 May; 10(4):175-84. PubMed ID: 9778688 [Abstract] [Full Text] [Related]
10. Impaired activation and binding of the erythropoietin receptor by a mutant gp55 of Friend spleen focus-forming virus, which has a cytoplasmic domain. Yugawa T, Amanuma H. Virology; 1998 Jul 05; 246(2):232-40. PubMed ID: 9657942 [Abstract] [Full Text] [Related]
11. Pathogenicity of a mutant friend spleen focus-forming virus encoding an Env-like membrane glycoprotein (gp55) with substitution by a xenotropic murine leukemia virus Env gp70 sequence. Yugawa T, Amanuma H. Microbiol Immunol; 1998 Jul 05; 42(4):335-9. PubMed ID: 9623923 [Abstract] [Full Text] [Related]
15. Apparent Epo-independence of erythroid cells infected with the polycythemia-inducing strain of Friend spleen focus-forming virus is not due to Epo production or change in number or affinity of Epo receptors. Ruscetti SK, Ruscetti FW. Leukemia; 1989 Oct 05; 3(10):703-7. PubMed ID: 2550708 [Abstract] [Full Text] [Related]