| Literature DB >> 471059 |
Abstract
Fast twitch fibres of rat and rabbit show rectangular patterns of intramembrane particles in freeze-fracture preparations of the sarcolemma. These 'square arrays' are almost totally absent in the slow twitch coleus muscle of rat. I report here differences in the incidence of square arrays in human fetal and adult muscle and in different fibres within a human muscle. Square arrays probably classify fast and slow twitch fibres in freeze-fracture preparations of mixed muscles.Entities:
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Year: 1979 PMID: 471059 DOI: 10.1038/281145a0
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962