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]
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.
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