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2161366
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Soluble monomers of tropoelastin are cross-linked by the oxi...
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Soluble monomers of tropoelastin are cross-linked by the oxidative deamination of lysine residues, catalyzed by lysyl oxidase (LOX). The first step in the cross linking reaction is the oxidative formation of the delta-aldehyde, known as alpha aminoadipic semialdehyde or allysine (Partridge 1963). Subsequent spontaneous reactions lead to the formation of cross-links through dehydrolysinonorleucine and allysine aldol, a trifunctional cross-link dehydromerodesmosine and two tetrafunctional cross-links desmosine and isodesmosine (Lucero & Kagan 2006), which are unique to elastin.