Literature DB >> 9518476

The protein splicing domain of the homing endonuclease PI-sceI is responsible for specific DNA binding.

W Grindl1, W Wende, V Pingoud, A Pingoud.   

Abstract

The homing endonuclease PI- Sce I consists of a protein splicing domain (I) and an endonucleolytic domain (II). To characterize the two domains with respect to their contribution to DNA recognition we cloned, purified and characterized the isolated domains. Both domains have no detectable endonucleolytic activity. Domain I binds specifically to the PI- Sce I recognition sequence, whereas domain II displays only weak non-specific DNA binding. In the specific complex with domain I the DNA is bent to a similar extent as observed with the initial complex formed between PI- Sce I and DNA. Our results indicate that protein splicing domain I is also involved in recognition of the DNA substrate.

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Year:  1998        PMID： 9518476      PMCID： PMC147489          DOI： 10.1093/nar/26.8.1857

Source DB:  PubMed          Journal:  Nucleic Acids Res        ISSN： 0305-1048            Impact factor:   16.971


  35 in total

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