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Abstract. Annexins constitute a family of structurally related calcium- and phospholipid-binding proteins whose molecular structure has been investigated in detail in the crystalline and membrane-bound form. Their polypeptide chain is folded into four or eight -helical domains of similar structure with a central hydrophilic pore. Bound to phospholipid membranes, the four-domain arrangement of the...
Annexin V binds in a calcium-dependent manner to acidic phospholipids and exhibits ion channel activity in vitro. We are investigating mutants of annexin V by single channel measurements, X-ray crystallography and electron microscopy in order to understand the structure-function relationships of the ion channel activity. We describe here a method to obtain very pure reeombinant annexin V required...
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