Structural basis for the acceleration of procollagen processing by Procollagen C-Proteinase Enhancer-1 by Pulido, D, Sharma, U, Goff, S, Hussain, S-A, Cordes, S, Mariano, N, Bettler, E, Moali, C, Aghajari, N, Hohenester, E, Hulmes, DJS