TY - JOUR
T1 - Altering DNA-binding specificity of GAL4 requires sequences adjacent to the zinc finger
AU - Corton, J. Christopher
AU - Johnston, Stephen A.
PY - 1989
Y1 - 1989
N2 - MANY eukaryotic proteins involved in transcriptional regulation contain within their DNA-binding domains a polypeptide loop (the zinc finger) which interacts with DNA1,2. In proteins possessing multiple zinc fingers, including TFIIIA3, Spl4,5, SWI56 and oestrogen/glucocorticoid receptors7, the region containing the zinc fingers confers DNA-binding specificity. By contrast, our results demonstrate that all but one of the 28 amino acids encompassing the single zinc-finger region of GAL4, the yeast transcriptional activator, can be replaced with the analogous zinc-finger region from another yeast-activator protein, PPR1, without changing the DNA-binding specificity of GAL4. A 14-amino-acid region adjacent to the zinc finger is necessary for determining specific recognition of DNA sequences.
AB - MANY eukaryotic proteins involved in transcriptional regulation contain within their DNA-binding domains a polypeptide loop (the zinc finger) which interacts with DNA1,2. In proteins possessing multiple zinc fingers, including TFIIIA3, Spl4,5, SWI56 and oestrogen/glucocorticoid receptors7, the region containing the zinc fingers confers DNA-binding specificity. By contrast, our results demonstrate that all but one of the 28 amino acids encompassing the single zinc-finger region of GAL4, the yeast transcriptional activator, can be replaced with the analogous zinc-finger region from another yeast-activator protein, PPR1, without changing the DNA-binding specificity of GAL4. A 14-amino-acid region adjacent to the zinc finger is necessary for determining specific recognition of DNA sequences.
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U2 - 10.1038/340724a0
DO - 10.1038/340724a0
M3 - Article
C2 - 2505085
AN - SCOPUS:0024325083
SN - 0028-0836
VL - 340
SP - 724
EP - 727
JO - Nature
JF - Nature
IS - 6236
ER -