Studies on cell division in mammalian cells: VI. A temperature-sensitive mutant blocked in both G1 and G2 phases of the cell cycleSpringer Science and Business Media LLC - Tập 8 - Trang 653-666 - 1982
David Jen-chi Chen, Richard J. Wang
A temperature-sensitive mammalian cell cycle mutant with blocks in G
1 and G2 phases of the cell cycle has been isolated in culture. When shifted from the permissive temperature of 33‡ C to the nonpermissive temperature of 39‡ C, the fraction of cells initiating DNA synthesis as well as the fraction of cells entering mitosis decreased rapidly. Combined cytophotometric and autoradiographic analysi...... hiện toàn bộ
Carcinoembryonic antigen (CEA) expression in somatic cell hybridsSpringer Science and Business Media LLC - Tập 8 - Trang 1-13 - 1982
Denise Sheer, Ruth M. Brown, Martin Bobrow
Five hybrids (LSB) were formed between LS174T, a human CEA-producing colonic tumor cell line, and BU25.CAPR, a HeLa derivative which does not produce CEA. All five hybrids produce CEA, but less per cell than LS174T. Approximately 10 % of the chromosomes have been lost from these hybrids. In an attempt to map the gene(s) coding for the protein moiety of CEA, 7 LSPG and 28 LSR hybrids were formed be...... hiện toàn bộ
Toward Expression Mapping of Albinism-Deafness Syndrome (ADFN) Locus on Chromosome Xq26Springer Science and Business Media LLC - Tập 24 - Trang 135-140 - 1998
A.N.K. Jacob, Geeta Kandpal, N. Gill, Rajendra P. Kandpal
We have employed a direct cDNA selection methodology to isolate transcribed sequences encoded in the human chromosomal interval Xq26 that contains the gene for X-chromosome linked albinism deafness syndrome (ADFN). ADFN had been previously mapped to an 8 centi Morgan region on chromosome Xq26. We have constructed six cDNA libraries specific to six YACs mapping to a 1.5 mb span at ...... hiện toàn bộ
Incorporation of isolated chromosomes and induction of hypoxanthine phosphoribosyltransferase in chinese hamster cellsSpringer Science and Business Media LLC - Tập 1 - Trang 137-151 - 1975
G. J. Wullems, J. van der Horst, D. Bootsma
Evidence is presented for the uptake of radioactive-labeled isolated Chinese hamster chromosomes following incubation with Chinese hamster cells. Metaphases were found which contained radioactive labeled chromosomes in a very low frequency, and in some of the labeled chromosomes only one chromatid was labeled. Incubation of hypoxanthine phosphoribosyltransferase (HPRT)-deficient Chinese hamster c...... hiện toàn bộ
Modulation ofAPRT transcription by altering spacing betweenCis-regulatory elementsSpringer Science and Business Media LLC - Tập 21 - Trang 43-50 - 1995
Bin-Ru She, Joel E. Schaley, Milton W. Taylor
Three regulatory regions on the promoter of CHO adenine phosphoribosyltransferase gene (APRT) were identified. Spacing constraints between these regions were analyzed. With normal spacing, region II (−33 to +19), which separates regions I (−101 to −53) and III (+56 to +85), is critical forAPRT transcription. However, when regions I and III are artificially placed in proximity to each other (region...... hiện toàn bộ
Structural gene encoding human factor XII is located at 5q33-qterSpringer Science and Business Media LLC - Tập 14 - Trang 217-221 - 1988
N. J. Royle, M. Nigli, D. Cool, R. T. MacGillivray, J. L. Hamerton
The gene encoding human factor XII (F12 ) or Hageman factor has been mapped to 5q33-qter. This has been achieved by analyzing the results obtained from hybridizing a cloned fragment from the factor XII gene to a panel of human-hamster somatic cell hybrid DNAs and also by in situ hybridization to normal human metaphase cells. The previously reported results localizingF12 to 6p23 are discussed.