| Literature DB >> 3203157 |
R E Larson1, D E Pitta, J A Ferro.
Abstract
We present evidence for a novel calmodulin-binding protein associated with Ca2+-sensitive, non-muscle actomyosin from rabbit brain. Gel filtration chromatography of brain actomyosin and SDS-PAGE analysis of resulting fractions revealed the presence of a stable complex of a 190 kDa polypeptide and calmodulin. Furthermore, brain actomyosin was retained on a column of conjugated calmodulin-Sepharose 4B and eluted by 6 M urea in the presence of Ca2+. Further elution with 6M urea plus EGTA released the 190 kDa polypeptide from the column. These results show that the 190 kDa polypeptide forms a tight complex with calmodulin and that this complex associates with brain actomyosin in a Ca2+-independent manner.Entities:
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Year: 1988 PMID: 3203157
Source DB: PubMed Journal: Braz J Med Biol Res ISSN: 0100-879X Impact factor: 2.590