Loss of leukemogenicity caused by mutations in the membrane glycoprotein structural gene of Friend spleen focus-forming virus.
Loss of leukemogenicity caused by mutations in the membrane glycoprotein structural gene of Friend spleen focus-forming virus.
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Friend 脾病灶形成病毒膜糖蛋白结构基因突变导致致白血病性丧失。
DOI:
10.1073/pnas.80.15.4704
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发表时间:
1983
影响因子:
11.1
通讯作者:
Kabat,D
中科院分区:
文献类型:
--
作者:
Ruta,M;Bestwick,R;Machida,C;Kabat,D
Friend virus infection of mice causes progressive leukemogenesis--a rapid splenic erythroblastosis that develops weeks later into a disseminating erythroleukemia. Furthermore, the replication-defective Friend spleen focus-forming virus (F-SFFV) encodes a membrane glycoprotein with an apparent Mr of 55,000 (designated gp55), which is structurally and immunologically related to the membrane envelope glycoproteins of dual tropic murine leukemia viruses. We now have isolated three spontaneous F-SFFV mutants that encode abnormally sized gp55-related glycoproteins with apparent Mrs of 40,000, 54,000, and 58,000, respectively. RNA blot and Southern blot analyses indicate that the mutant nucleic acids do not have substantial deletions or insertions in their glycoprotein gene regions. Protein fragmentation patterns indicate that the mutations affect nonoverlapping domains of the glycoprotein. Furthermore, these mutant glycoproteins seem to be defective in their processing to the plasma membranes. Although transmitted efficiently between cultured cells, the mutants have dramatically reduced leukemogenicities compared with the same titers of wild-type F-SFFV. We conclude that the gp55 structural gene is necessary for initiating the erythroblast proliferative phase of Friend disease and that changes in membranes can be primary causes rather than only secondary consequences of tumor progression.
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影响因子:
2.7
作者:
A. Kahn;D. Simmons;M. Krukowski
通讯作者:
M. Krukowski
影响因子:
--
作者:
Steven N. Popoff;Sandy C. Marks
通讯作者:
Sandy C. Marks
影响因子:
2.7
作者:
Philip Osdoby;Arnold I. Caplan
通讯作者:
Arnold I. Caplan
影响因子:
4.8
作者:
J. Tobias;T. Chambers
通讯作者:
T. Chambers
DOI:
10.1016/0169-6009(89)90005-6
发表时间:
1989
期刊:
Bone and mineral
影响因子:
--
作者:
Glowacki,J;Cox,KA;Wilcon,S
通讯作者:
Wilcon,S