Reuben Fraser, T. Macrae, F.H.C. Stewart
Apr 1, 1965
Citations
0
Influential Citations
84
Citations
Quality indicators
Journal
Journal of molecular biology
Abstract
The sequential polymer poly- L -alanylglycine has been synthesized and shown to form a β-structure similar to that found in Bombyx mori silk fibroin. The chain arrangement is such that all the glycyl residues project on one side of the sheet and the alanyl residues on the other. The sheets are packed in pairs with the glycyl surfaces in contact. Structure factor calculations suggest that the inter-sheet distance across the glycyl-glycyl contact is significantly greater than in the model for silk fibroin proposed by Marsh, Corey & Pauling (1955) .