Collagens FACIT-like

Transmembrane collagen Basement membrane Basement membrane zone FACIT-like XVI, XIX... 

A second class of non-fibrillar collagens includes type IV molecules that form antiparallel sheet-like structures that make-up basement membranes. The third major class is the fibril associated collagens (FACIT) with interrupted triple helices including types IX, XII, XI and XVl. The FACIT collagens are separated into multiple domains of variable lengths. 

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