– Transformation of Muscle Protein in situ

Abstract

Some of the deformed single crystals (10, 12 and 16 per cent extension) have again become single crystals after recrystallisation at temperatures coinciding with those of Karnopp and SacJ.1s1, but with an orientation absolutely different from that of the deformed crystal (see Fig. 1, c and d).N. SELJAKOW. Institute of Metals, E. Sows. Leningrad.

X-Ray Studies of the Structure of Compounds of Biological Interest

“…It was noticed several years ago (8) that hair and muscle photographs are almost unbelievably alike, and this observation has now been developed into a detailed comparison, taking in all the main types of x-ray photograph and changes of state of mammalian hair, living and dead muscle, and pure isolated myosin (9). Only preliminary reports (10,11) have appeared as yet, but pending the fuller discussion (9) it is possible to summarise the results quite briefly. From several lines of evidence there can be little doubt that myosin is the active elastic principle in muscle, and x-rays show that it is present as a swollen solid, a fibrous protein with the polypeptide chains running along the length of the fibrils.…”