NCIt definition : TATA-box-binding protein (339 aa, 38 kDa) is encoded by the human TBP gene. This
protein is involved in both DNA binding and gene transcription initiation.;
NCIt note : The TATA Binding Protein (TBP) is a DNA-binding component of the TFIID basal transcription
factor of the class II genes (transcribed by RNA polymerase II), the TFIIIB class
III transcription factor, and the TIF-1B (SL1) class I factor. Its name is derived
from the A-T rich DNA motif that it binds to in the class II genes, most commonly
TATAAAA.; The poly-Gln region of TATA-box-binding protein (amino acids 55-95 in the cannonical
protein sequence) is highly polymorphic. There are 25 to 42 repeats in normal individuals
and 47-63 repeats in patients with spinocerebellar ataxia 17.;