Collagen, type XXVIII, alpha 1 also known as COL28A1 is a
protein that in humans is encoded by the COL28A1gene.[5] This protein belongs to a class of collagens that contain
von Willebrand factor type A domains.[6] The protein is encoded by the COL28A1gene which contains 45
exons and is found of the p arm of chromosome 7.[6]