Table 2.

Collagen types can be divided according to their supramolecular organization (in bold are the collagens localized in the skin). MACIT, membrane-associated collagens with interrupted triple helices; FACIT, fibril-associated collagens with interrupted triple helices; MULTIPLEXINS, multiple triple-helix domains and interruptions.

Collagen Family
Fibril Forming Collagens	Network Forming Collagens	MACIT Collagens	FACIT Collagens	MULTIPLEXINs Collagens	Other Collagens
I II III V XI XXIV XXVII	IV VI VII VIII X	XIII XVII XXIII XXV	IX XII XIV XVI XIX XX XXI XXII	XV XVIII	XXVI XXVIII XXIX