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<p>highly stable, and it has a fairly small size (around 30 amino acids). These two characteristics make it an attractive biomolecule to be used for drug delivery as it exhibits thermal stability, chemical stability, and proteolytic resistance.  Studies have shown that cystine knot proteins can be incubated at temperatures of 65&nbsp;°C or placed in 1<a href="page.php?w=Equivalent_concentration">N</a> HCl/1N NaOH without loss of structural and functional integrity.  Together with a partial resistance to proteases, these properties make cystine</p><p>
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