4. TBP-TFIIB-DNA
![](https://cdn.rcsb.org/pdb101/geis/images/logo-generic-150.png)
On the right-hand side of TBP, Geis depicts Transcription Factor II B (TFIIB) in purple, attached to the other components of the preinitiation complex. Geis positions and colors the purple protein farther back in the painting, depicting its collateral position.
![](https://cdn.rcsb.org/pdb101/geis/images/tn/rcsb-0008-tbp-tfiib-dna.png)
Used with permission from the Howard Hughes Medical Institute (www.hhmi.org). All rights reserved.
![](https://cdn.rcsb.org/pdb101/geis/images/600/rcsb-0008-tbp-tfiib-dna.png)
![](https://cdn.rcsb.org/pdb101/geis/images/static/rcsb-0008-tbp-tfiib-dna.png)
Related PDB Entry: 1VOL
Experimental Structure Citation
Nikolov, D. B., Chen, H., Halay, E. D., Usheva, A. A., Hisatake, K., Lee, D. K., Roeder, R. G., & Burley, S. K. (1995). Crystal structure of a TFIIB-TBP-TATA-element ternary complex. Nature, 377, 119-128.
About TBP-TFIIB-DNA
TFIIB is a general transcription factor that joins to form a TBP(TFIID)•TFIIB•DNA complex. After this complex is created, it can then be recognized by a complex of RNA Polymerase II and TFIIF.