| Literature DB >> 934293 |
Abstract
A simple diagrammatic representation has been used to show the arrangement of alpha helices and beta sheets in 31 globular proteins, which are classified into four clearly separated classes. The observed arrangements are significantly non-random in that pieces of secondary structure adjacent in sequence along the polypeptide chain are also often in contact in three dimensions.Mesh:
Year: 1976 PMID: 934293 DOI: 10.1038/261552a0
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962