Identification and purification of a soluble region in the breast cancer susceptibility protein BRCA2

David Finch, Michelle Webb

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The BRCA2 gene encodes a large multidomain protein of 3418 residues. Studies to elucidate the mechanisms by which BRCA2 prevents tumour formation have been largely restricted by the size of the protein. Based on secondary structure predictions we have cloned regions across the BRCA2 gene and determined the solubility of the proteins they encode. The fragment consisting of amino acids 290-456 BRCA2 was found predominantly in the soluble portion of the cell lysate and was purified by ion exchange and nickel-NTA affinity chromatography. CD spectroscopy revealed secondary structure elements consistent with a folded peptide and limited proteolysis was used to identify a potential novel domain. © 2004 Elsevier Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)177-182
    Number of pages5
    JournalProtein Expression and Purification
    Volume40
    Issue number1
    DOIs
    Publication statusPublished - Mar 2005

    Keywords

    • BRCA2
    • Domain
    • Limited proteolysis

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