TATA Box Binding Protein
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The TATA Box Binding Protein is a transcription factor that binds to the minor groove of
an eight base pair segment of DNA allowing RNA Polymerase to bind and begin transcription.
The Base Pairs are characterized by a redundant TATA pattern.
For more information see
Biochemistry Online: Chapter 5D - Binding and the Control of Gene
II. General Structure
Spacefill Model Of protein. Notice: Saddle-like shape. Concave "underside" distorts DNA significantly when bound.
Backbone and sidechains of TATA Box Binding Protein
View DNA-The protein binds to the minor groove of the DNA
Cartoon Hbonds and Wireframe of TATA Box Binding Proteins Bound to Minor
Groove of DNA. Note: Anti-Parallel Beta Pleated Sheets in Protein
Binding Site. The Protein-DNA uses an induced fit mechanism
Binding site residues form a concave
binding pocket for minor groove of DNA to bind
Binding Amino Acids along with spacefilling model of minor groove
and interacting base pairs
Hydrophobes-Notice High Hydrophobicity in
Binding Site. TBP-DNA Complex is characterized by 74%
Hydrophobicity within binding site.
Secondary Structure of the Binding Pocket showing antiparallel
Beta-Pleated Sheets in Binding Site
Specific Binding Amino Acids in Binding Site.
Chen, H., Halay, E.D., Hoffmann, A., Roeder, R.G., & Burley, S.K.
(1996). Crystal structure of a human TATA box-binding protein/TATA
element complex. 93, 4862-4867.