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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Silver, L. M. White, M. Artzt, K. |
| Abstract | The Tcp-1 gene located within the T/t complex on chromosome 17 of the mouse codes for a major cell surface-associated protein p63/6.9. Previously, we identified two structural alleles of this gene which specify alternate forms of the p63/6.9 protein. The Tcp-1b allele is associated with all wild-type chromosome 17; the Tcp-1a allele is found only with chromosome 17 carrying a complete t haplotype. Normal recombination along a major length of chromosome 17 is suppressed in mice that are heterozygous for any complete t haplotype. Suppression is not complete, however, and rare crossing over between wild-type and t haplotype chromatin does occur. In this report, 15 rare recombinant chromosomes have been analyzed for Tcp-1 alleles. The results indicate that in four independent events the Tcp-1b and Tcp-1a alleles have become associated in cis position in a single DNA molecule. Further genetic analysis provides support for the hypothesis that a significant nonhomology exists between the arrangement of DNA sequences on wild-type and t-carrying chromosome 17. This could account for both the suppression of normal recombination along the stretch of t chromatin and the frequent unequal crossing over when rare recombinational events do take place. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 10 |
| Volume Number | 77 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1980-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Crossing Over, Genetic Mice, Mutant Strains Genetics Recombination, Genetic Alleles Animals Centromere Chromosome Mapping Membrane Proteins Mice Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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