Design superiority of palindromic DNA sites for site-specific recognition of proteins: tests using protein stitchery.
收藏PubMed Central1993-06-01 更新2026-05-16 收录
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https://pmc.ncbi.nlm.nih.gov/articles/PMC46619/
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Using protein stitchery with appropriate attachment of cysteines linking to either C or N termini of the basic region of the v-Jun leucine zipper gene-regulatory protein, we constructed three dimers--pCC, pCN, and pNN. All three bind specifically to the appropriately rearranged DNA recognition sites for v-Jun: ATGAcgTCAT, ATGAcgATGA, and TCATcgTCAT, respectively (Kd, approximately 4 nM at 4 degrees C). Results of DNase I footprinting provide strong support for bent recognition helices in leucine zipper protein-DNA complexes. Comparison of the results for pCC and pNN with those for pCN shows the design superiority of palindromic sequences for protein recognition. IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1993-06-01
