SGD Paper 
Fribourg S, et al. (2000) Structural characterization of the cysteine-rich domain of TFIIH p44 subunit. J Biol Chem 275(41):31963-71
Abstract: In an effort to understand the structure function relationship of TFIIH,a transcription/repair factor, we focused our attention on the p44 subunit, which plays a central role in both mechanisms. The amino-terminal portion of p44 has been shown to be involved in the regulation of the XPD helicase activity; here we show that its carboxyl-terminal domain is essential for TFIIH transcription activity and that it binds three zinc atoms through two independent modules. The first contains a C4 zinc finger motif, whereas the second is characterized by a CX(2)CX(2-4)FCADCD motif, corresponding to interleaved zinc binding sites. The solution structure of this second module reveals an unexpected homology with the regulatory domain of protein kinase C and provides a framework to study its role at the molecular level.
| Status: Published | Type: Journal Article | PubMed ID: 10882739 |
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