The formation of triple-helical collagen molecules from alpha-1 or alpha-2 polypeptide chains.
D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002852:Chromatography, Ion Exchange; D003094:Collagen; D004586:Electrophoresis; D006863:Hydrogen-Ion Concentration; D008027:Light; D008854:Microscopy, Electron; D010455:Peptides; D011489:Protein Denaturation; D051381:Rats; D012399:Rotation; D012867:Skin; D012995:Solubility; D013696:Temperature; D014461:Ultracentrifugation
D010455:Peptides; D003094:Collagen