Characterization of tissue culture-induced heterogeneity in DNAs of independent isolates of JC virus.
Characterization of tissue culture-induced heterogeneity in DNAs of independent isolates of JC virus.
复制标题
组织培养诱导的 JC 病毒独立分离株 DNA 异质性的表征。
DOI:
10.1099/0022-1317-64-10-2271
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发表时间:
1983
期刊:
影响因子:
--
通讯作者:
Walker,DL
中科院分区:
文献类型:
--
作者:
Martin,JD;Padgett,BL;Walker,DL
After several serial passages at low multiplicities of infection in primary human foetal glial cells at 37 °C, the DNA of prototype (MAD-1) JC virus and that of MAD-2 and MAD-3 are typically heterogeneous in size, but DNAs of MAD-4 and MAD-6 are relatively homogeneous. A similar dichotomy was observed in the DNAs of six isolates propagated more recently in glial cultures at 39 °C under similar conditions of brief passagein vitroat low multiplicities of infection: the DNAs of two (MAD-9 and -10) were heterogeneous, but the DNAs of four others (MAD-8, -11, -12 and -14) were homogeneous. Therefore, the propensity of the viral genome to sustain deletions was an intrinsic property of each isolate. However, actual induction and maintenance of the presumably defective DNAs was influenced by the relative proportions of permissive spongioblasts and semi-permissive astrocytes in the glial cultures and by the multiplicity of infection. Deletions in MAD-1 DNA were confined to the presumptive early region and spanned theBamHI cleavage site (map position 0.505). The heterogeneity was more complex in the DNAs of MAD-2 and MAD-3, but again most of the deletions, which ranged up to 12% of full-length DNA, spanned theBamHI site. We propose that the differential susceptibility to deletion among isolates is a consequence of natural genetic variation in JC virus.
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影响因子:
5.4
作者:
H. Tai;C. Smith;P. Sharp;J. Vinograd
通讯作者:
J. Vinograd
影响因子:
3.7
作者:
D. Carroll;J. Hansen;E. Maryon;F. O'Neill
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F. O'Neill
影响因子:
3.7
作者:
Frank J. O'Neill;Dana Carroll
通讯作者:
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影响因子:
3.7
作者:
K. Yoshiike
通讯作者:
K. Yoshiike
DOI:
10.1016/0006-291x(66)90447-5
发表时间:
1966-01-01
影响因子:
3.1
作者:
DENHARDT, DT
通讯作者:
DENHARDT, DT