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Main Title Chromosome 11 Aberrations in Small Colony L5178Y TK-/-Mutants Early in Their Clonal History.
Author Hozier, J. ; Sawyer, J. ; Clive, D. ; Moore, M. M. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. Genetic Toxicology Div. ;Florida Inst. of Tech., Melbourne. ;Burroughs Wellcome Co., Research Triangle Park, NC.
Year Published 1985
Report Number EPA/600/J-85/409;
Stock Number PB86-211711
Additional Subjects Chromosomes ; Mutants ; Genetics ; Reprints ; Cytogenetics
Library Call Number Additional Info Location Last
NTIS  PB86-211711 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Abstract The authors have developed a cytogenetic technique that allows observation of chromosome rearrangements associated with TK-/- mutagenesis of the L5178Y/TK+/-3.7.2C cell line early in mutant clonal history. For a series of mutagenic treatments they show that the major proportion (93%) of small-colony (omega) mutants studied have chromosome 11 rearrangements (the chromosome containing the thymidine kinase gene) while large-colony (lambda) mutants do not have detectable chromosome rearrangements. In addition, the authors find among the chromosome abnormalities in omega mutants a significant proportion (34%) with dicentric chromosomes involving chromosome 11. These potentially unstable chromosome rearrangements may help to explain the karyotypic instability and heterogeneity among chromosome 11 aberrations previously noted in omega mutants when they are analyzed later in their clonal history.
Supplementary Notes Pub. in Mutation Research 147, p237-242 1985. Prepared in cooperation with Florida Inst. of Tech., Melbourne, and Burroughs Wellcome Co., Research Triangle Park, NC.
NTIS Title Notes Journal article.
Title Annotations Reprint: Chromosome 11 Aberrations in Small Colony L5178Y TK-/-Mutants Early in Their Clonal History.
PUB Date Free Form c1985
Category Codes 6C; 57F
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 624111085
Origin NTIS
Type CAT