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Low Molecular Weight Microtubule-associated Proteins Are Light Chains of Microtubule-associated Protein 1 (MAP 1)

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Specialty Science
Date 1983 Mar 1
PMID 6572393
Citations 39
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Abstract

Microtubule-associated protein 1 (MAP 1; Mr = 350,000) was analyzed by column chromatography of microtubule protein obtained from calf brain gray and white matter. Two low molecular weight proteins (LMW MAPs; Mr 28,000 and 30,000) were found to cochromatograph with MAP 1 under all conditions examined. MAP 1 and the LMW MAPs were purified from calf brain white matter as a complex containing approximately equimolar amounts of the three species. Urea (6 M) was used to remove the LMW MAPs from MAP 1. Binding of MAP 1 to microtubules was unaffected by urea and occurred with or without the LMW species. Electron microscopy of microtubules composed of purified tubulin and either MAP 1 preparation revealed that, like MAP 2, MAP 1 has the appearance of a filamentous arm on the microtubule surface.

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References
1.
Laemmli U . Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970; 227(5259):680-5. DOI: 10.1038/227680a0. View

2.
Fairbanks G, Steck T, Wallach D . Electrophoretic analysis of the major polypeptides of the human erythrocyte membrane. Biochemistry. 1971; 10(13):2606-17. DOI: 10.1021/bi00789a030. View

3.
Gaskin F, Cantor C, Shelanski M . Turbidimetric studies of the in vitro assembly and disassembly of porcine neurotubules. J Mol Biol. 1974; 89(4):737-55. DOI: 10.1016/0022-2836(74)90048-5. View

4.
Sloboda R, Rudolph S, Rosenbaum J, Greengard P . Cyclic AMP-dependent endogenous phosphorylation of a microtubule-associated protein. Proc Natl Acad Sci U S A. 1975; 72(1):177-81. PMC: 432265. DOI: 10.1073/pnas.72.1.177. View

5.
Borisy G, Marcum J, Olmsted J, Murphy D, Johnson K . Purification of tubulin and associated high molecular weight proteins from porcine brain and characterization of microtubule assembly in vitro. Ann N Y Acad Sci. 1975; 253:107-32. DOI: 10.1111/j.1749-6632.1975.tb19196.x. View