2adr: Difference between revisions
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==Overview== | ==Overview== | ||
The region responsible for sequence-specific DNA binding by the | The region responsible for sequence-specific DNA binding by the transcription factor ADR1 contains two Cys2-His2 zinc fingers and an additional N-terminal proximal accessory region (PAR). The N-terminal (non-finger) PAR is unstructured in the absence of DNA and undergoes a folding transition on binding the DNA transcription target site. We have used a set of HN-HN NOEs derived from a perdeuterated protein-DNA complex to describe the fold of ADR1 bound to the UAS1 binding site. The PAR forms a compact domain consisting of three antiparallel strands that contact A-T base pairs in the major groove. The three-strand domain is a novel fold among all known DNA-binding proteins. The PAR shares sequence homology with the N-terminal regions of other zinc finger proteins, suggesting that it represents a new DNA-binding module that extends the binding repertoire of zinc finger proteins. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Bowers, P | [[Category: Bowers, P M.]] | ||
[[Category: Kleivt, R | [[Category: Kleivt, R E.]] | ||
[[Category: ZN]] | [[Category: ZN]] | ||
[[Category: adr1]] | [[Category: adr1]] | ||
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[[Category: zinc finger]] | [[Category: zinc finger]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:26:23 2008'' | ||