Title : Substitution of Asp-210 in HAP1 (APE/Ref-1) eliminates endonuclease activity but stabilises substrate binding.

Pub. Date : 2000 Jun 1

PMID : 10871340






2 Functional Relationships(s)
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1 Nevertheless, these mutant proteins still bind efficiently to oligonucleotides containing either AP sites or the chemically unrelated bulky p-benzoquinone (pBQ) derivatives of dC, dA and dG, all of which are substrates for HAP1. Oligonucleotides huntingtin associated protein 1 Homo sapiens
2 Through analysis of the binding of Asp-210 substitution mutants to oligonucleotides containing either an AP site or a pBQ adduct, we conclude that the absence of Asp-210 allows the formation of a stable HAP1-substrate complex that exists only transiently during the catalytic cycle of wild-type HAP1 protein. Oligonucleotides huntingtin associated protein 1 Homo sapiens