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Lightfoot S.J., Atkinson M.S., Murphy G., Byers P.H., Kadler K.E. Substitution of serine for glycine 883 in the triple helix of the proalpha1(I) chain of type I procollagen produces osteogenesis imperfecta type IV ana introduces a structural change in the triple helix that does not alter cleavage of the molecule by procollagen N-proteinase. - J.Biol.Chem., 1994, v. 269, p. 30352-30357.
