Abstract
AbstractProfilactin, the profiling:actin complex, which is present in large amounts in extracts of many types of eukaryotic cells, appears to serve as the precursor of microfilaments. It was reported recently that profilactin interacts specifically with phosphatidylinositol 4,5‐bisphosphate (PtdIns(4,5)P2) (Lassing and Lindberg: Nature 314:472–474, 1985.) The present paper describes in detail the behaviour of profilactin and profilin in the presence of different types of phospholipids and neutral lipids under different conditions. PtdIns(4,5)P2 is the only phospholipid found so far which in the presence of 80 mM KC1 and at Ca2+ concentrations below 10−5 M effectively dissociates profilactin with the resulting polymerization of the actin. Phosphatidylinositol 4‐monophosphate exhibits some activity but phosphatidylinositol is inactive. Both calf spleen profilin and profilin from human platelets form stable complexes with PtdIns(4,5)P2 micelles. PtdIns(4,5)P2 is active also when incorporated together with other phospholipids in mixed vesicles.
References
33
Referenced
113
10.1007/BF00711795
10.1083/jcb.91.3.695
10.1073/pnas.76.12.6376
10.1021/bi00541a003
10.1016/0014-5793(80)80966-5
10.1016/0014-5793(81)80048-8
10.4049/jimmunol.129.4.1605
{'key': 'e_1_2_1_9_2', 'first-page': '80', 'volume': '34', 'author': 'Sheterline P', 'year': '1984', 'journal-title': 'Eur J Cell Bioi'}
/ Eur J Cell Bioi by Sheterline P (1984)10.1002/cm.970010104
10.1007/BF00712117
10.1016/0092-8674(81)90279-8
10.1038/314472a0
10.1016/S0022-2275(20)37323-5
10.1016/0003-2697(75)90388-7
10.1146/annurev.bb.09.060180.002343
10.1016/0022-2836(76)90098-X
10.1016/S0021-9258(17)43188-7
/ J Biol Chem by Segura M (1984)- LarssonH: “Profilactin and the Regulation of Actin Assembly and Disassembly.” Doctoral Dissertation ISBN 91–7146–649–5 University of Stockholm Stockholm 1985.
10.1007/BF00712116
10.1016/0014-5793(78)80610-3
10.1038/227680a0
{'key': 'e_1_2_1_23_2', 'first-page': '668', 'volume': '165', 'author': 'Hendrickson HS', 'year': '1969', 'journal-title': 'Ann NY Acad Sci'}
/ Ann NY Acad Sci by Hendrickson HS (1969)10.1016/0005-2736(81)90578-2
10.1021/bi00884a021
{'key': 'e_1_2_1_26_2', 'first-page': '26', 'volume-title': 'Biochemistry of Lipids and Membranes', 'author': 'Cullis PR', 'year': '1985'}
/ Biochemistry of Lipids and Membranes by Cullis PR (1985){'key': 'e_1_2_1_27_2', 'first-page': '111', 'volume-title': 'Platelets in Biology and Pathology', 'author': 'Deykin D', 'year': '1976'}
/ Platelets in Biology and Pathology by Deykin D (1976)10.1111/j.1432-1033.1978.tb12386.x
10.1016/0167-4838(82)90130-3
10.1016/0167-4838(82)90429-0
10.1016/0092-8674(81)90338-X
10.1016/S0021-9258(18)95698-X
10.1083/jcb.97.1.112
10.1038/325362a0
/ Nature by Janmey PA (1986)
Dates
Type | When |
---|---|
Created | 20 years, 7 months ago (Dec. 30, 2004, 10:19 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 22, 2023, 10:23 a.m.) |
Indexed | 11 months, 1 week ago (Sept. 13, 2024, 1:45 p.m.) |
Issued | 37 years, 1 month ago (July 1, 1988) |
Published | 37 years, 1 month ago (July 1, 1988) |
Published Online | 21 years, 6 months ago (Feb. 19, 2004) |
Published Print | 37 years, 1 month ago (July 1, 1988) |
@article{Lassing_1988, title={Specificity of the interaction between phosphatidylinositol 4,5‐bisphosphate and the profilin:actin complex}, volume={37}, ISSN={1097-4644}, url={http://dx.doi.org/10.1002/jcb.240370302}, DOI={10.1002/jcb.240370302}, number={3}, journal={Journal of Cellular Biochemistry}, publisher={Wiley}, author={Lassing, Ingrid and Lindberg, Uno}, year={1988}, month=jul, pages={255–267} }