Covalent complexes formed between plasma gelsolin and actin with a zero-length cross-linking compound.
Covalent complexes formed between plasma gelsolin and actin with a zero-length cross-linking compound.
复制标题
血浆凝溶胶蛋白和肌动蛋白与零长度交联化合物之间形成共价复合物。
DOI:
10.1021/bi00344a047
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发表时间:
1985
期刊:
影响因子:
2.9
通讯作者:
H. Harris
中科院分区:
文献类型:
--
作者:
H. Harris
Actin and plasma gelsolin were covalently cross-linked with the zero-length cross-linker 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide. Two major intermolecularly linked products were identified on polyacrylamide gels. By use of 14C-labeled actin and 125I-labeled gelsolin, these were shown to be the 1:1 and 2:1 complexes of actin with gelsolin, respectively. The higher molecular weight complex predominated under all conditions tested including the presence and absence of Ca2+. In titration experiments in which actin at different concentrations was reacted with a fixed concentration of gelsolin, end points were obtained for the formation of both cross-linked species at about two actins per gelsolin, implying that a 2:1 noncovalent complex is cross-linked. In 0.1 mM Ca2+, the extent of cross-linking was independent of protein concentration down to 50 nM gelsolin. At low Ca2+ concentrations (less than 10(-8)M), the extent of cross-linking was very much reduced at micromolar gelsolin and fell to zero at about 100 nM gelsolin. The binding of actin to gelsolin to give a cross-linkable complex is therefore very strong at 0.1 mM Ca2+ but much weaker at low Ca2+ concentrations.
影响因子:
3.7
作者:
Snabes,MC;Boyd3rd,AE;Bryan,J
通讯作者:
Bryan,J
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Yin,HL;Kwiatkowski,DJ;Mole,JE;Cole,FS
通讯作者:
Cole,FS
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Doi,Y;Frieden,C
通讯作者:
Frieden,C