Collagen alpha A and alpha B chains constitute two separate molecular species.
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D003094:Collagen / Q000302:isolation & purification; D046911:Macromolecular Substances; D008297:Male; D051381:Rats; D012867:Skin / Q000032:analysis
D000596:Amino Acids; D046911:Macromolecular Substances; D003094:Collagen