Some transcription factors,such as ________ can act as both antirepressors and transcription activators.

Question

Quizplus · Accepted Answer

GAL4 is a versatile transcription factor that can both activate transcription and act as an anti-repressor by disrupting nucleosome structure to allow access of other transcription factors to the DNA. Rad6 is an E2 ubiquitin-conjugating enzyme that is not known to have transcription factor function. SIR2 is a histone deacetylase involved in gene silencing, but does not act as an anti-repressor or transcription activator. RAP1 is a DNA binding protein involved in telomere maintenance and transcription regulation, but is not known to act as an anti-repressor. HP1 is a chromatin-associated protein involved in heterochromatin formation, but is not known to have transcription factor function.

Some Transcription Factors,such as ________ Can Act as Both Antirepressors