T. C. Tranter
1956
Citations
0
Influential Citations
5
Citations
Journal
Nature
Abstract
IN the course of a programme of research into the crystal structures of simple synthetic peptides undertaken in the laboratories of the Wool Industries Research Association, glyeyl-L-alahine has been synthesized and the structure of its hydrochloride elucidated using two-dimensional methods. As indicated in an earlier communication1, the hydrochloride and hydrobromide of glycyl-L-alanine are isomorphous, with the following cell constants: and from the systematic absences observed the space group may be inferred to be P21. The density of the hydrochloride by flotation is 1.465 gm. cm.−3, which necessitates the presence of two molecules of peptide and two molecules of water of crystallization in the unit cell. The existence of the latter was confirmed analytically.