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Digitale Medien

Characterization of novel rad6/ubc2 ubiquitin-conjugating enzyme mutants in yeast (2000)

Freiberg, Gail ; Mesecar, Andrew D. ; Huang, Hanhua ; [weitere]

Springer

Current genetics 37 (2000), S. 221-233

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Details

ISSN: 1432-0983

Schlagwort(e): Key Words Rad6 ; Ubiquitination ; Silencing ; Yeast

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract Null mutations in the RAD6/UBC2 gene encoding an E2 ubiquitin-conjugating enzyme cause deficiencies in DNA repair, N-end-rule protein degradation, sporulation and telomeric silencing, and alter the preferred integration positions for Ty1 retrotransposons. Here we selected for mutants of RAD6 that cause a release of telomeric silencing. Some alleles retained nearly wild-type ability for sporulation, DNA repair and the degradation of proteins. Alteration in Ty1 integration-site bias accompanied some of these alleles. The possibility that some mutations specifically affect binding of an unknown protein that works with Rad6 in its silencing role, but is not required for DNA repair or N-end-rule activity, is discussed in terms of the Rad6 crystal structure.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s002940050523

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