Xyloglucan endotransglucosylase

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Xyloglucan endotransglucosylase (XET) is an apoplastic enzyme found across the plant kingdom. The enzyme catalyzes the endotransglucosylation of two xyloglucan polysaccharides, effectively 'stitching' them together.[1]

Function in planta[edit]

XET is thought to promote cell expansion by breaking the xyloglucan cross-links between cellulose microfibrils before reforming them, potentially now linked to another microfibril.


  1. ^ http://www.biochemj.org/bj/282/0821/bj2820821_browse.htm