transcription factor By Ivan Suarez Robles 17 Nov, 2010 A protein that aids in transcription (part of the process that uses the DNA code to make a protein).Related Articles: HTT Promoter Mutation has a Bi-directional Effect on HD Age of OnsetGlossary: neuroD (ND)Glossary: NF-kappa B (NF-KB)2018 HOPES conference discussed up-and-coming treatments, stories of resilienceGlossary: AP-1