| Literature DB >> 1711122 |
L Tilley1, G B Nash, G L Jones, W H Sawyer.
Abstract
Melanesian ovalcytes from Papua New Guinea have an N-terminal extension of the band 3 polypeptide (Jones, G.L., Edmunson, H.M., Wesche, D., Saul, A. 1990. Biochim. Biophys. Acta 1096:33-40). The ovalocytes showed a threefold increase in shear elastic modulus as determined by micropipette aspiration measurements of membrane rigidity. Time-resolved phosphorescence anisotropy has been used to study the rotational freedom of band 3 in membranes prepared from ovalocytes. The ovalocytic polymorphism was found to be associated with a marked decrease in the rotational mobility of band 3. This may indicate participation of band 3 in large homoaggregates or in complexes with other proteins at the cytoplasmic surface. There was no morphological clustering of band 3 detectable by immunofluorescence microscopy.Entities:
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Year: 1991 PMID: 1711122 DOI: 10.1007/bf01870651
Source DB: PubMed Journal: J Membr Biol ISSN: 0022-2631 Impact factor: 1.843