methyltransferase and HDAC inhibitors
What methyltransferase and HDAC inhibitors means in Biology A-Level, as defined for AQA.
Definition of methyltransferase and HDAC inhibitors
Check what you remember
Read the wording for your board, then hide it and explain methyltransferase and HDAC inhibitors in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Drugs that inhibit DNA methyltransferase reduce methylation of tumour suppressor genes so they are expressed again, while histone deacetylase inhibitors increase acetylation, loosening the chromatin and allowing transcription.
Topics that use methyltransferase and HDAC inhibitors
Related terms
- complementary base pairing
- correlation not causation
- decreased histone acetylation
- DNA methylation
- environment and gene expression
- genotype versus environment
- histone acetylation
- hypermethylation of tumour suppressor genes
Using methyltransferase and HDAC inhibitors in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge