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<p>are often hydrogen bonded; the most common small motifs formed are based on interactions with <a href="page.php?w=serine">serine</a>: <a href="page.php?w=ST_turn">ST turn</a>s, <a href="page.php?w=ST_motif">ST motif</a>s (often at the beginning of <a href="page.php?w=alpha_helices">alpha helices</a>) and <a href="page.php?w=ST_staple">ST staple</a>s (usually at the middle of alpha helices).</p>

<p><big>Modifications</big></p>
<p>The threonine residue is susceptible to numerous <a href="page.php?w=posttranslational_modification">posttranslational modification</a>s.</p><p>
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