Abstract
Intact A microtubules isolated from outer doublet microtubules of Chlamydomonas flagella contain two separable proteins (tubulins) that differ in molecular weight and in amino-acid composition. The microtubule protein isolated from brain or neuroblastoma cells also has two electrophoretically distinct tubulins. Although the two tubulins of brain and neuroblastoma cells are electrophoretically similar to each other, only one of these tubulins migrates with the flagellar tubulins. This is the first evidence that (a) isolated, morphologically intact, single microtubules from flagella contain at least two different tubulins, and (b) at least one of these tubulins differs from tubulins that are isolated from other sources.
MeSH Terms
Animals
Autoradiography
Brain Chemistry
Carbon Isotopes
Chlamydomonas/analysis
Chlorophyta/analysis
Chromatography, DEAE-Cellulose
Densitometry
Electrophoresis, Disc
Flagella/analysis
Microscopy, Electron
Microtubules/analysis
Molecular Weight
Neoplasm Proteins/analysis
Nerve Tissue Proteins/analysis
Neuroblastoma/metabolism
Proteins/analysis
Swine
Tritium
Chemicals
Carbon Isotopes
Neoplasm Proteins
Nerve Tissue Proteins
Proteins
Tritium
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Olmsted J B
Witman G B
Carlson K
Rosenbaum J L
References (18)
18 references, click to expand
-
Size and charge isomer separation and estimation of molecular weights of proteins by disc gel electrophoresis.
Arch Biochem Biophys. 1968 Jul;126(1):155-64
PMID: 5671059
-
Molecular weight estimation of polypeptide chains by electrophoresis in SDS-polyacrylamide gels.
Biochem Biophys Res Commun. 1967 Sep 7;28(5):815-20
PMID: 4861258
-
Identification of the flagellar proteins of Chlamydomonas reinhardii.
Exp Cell Res. 1970 Nov;63(1):53-61
PMID: 5496281
-
Differential effects of antimitotic agents on the stability and behavior of cytoplasmic and ciliary microtubules.
Protoplasma. 1968;65(1):167-79
PMID: 5667676
-
The colchicine-binding protein of mammalian brain and its relation to microtubules.
Biochemistry. 1968 Dec;7(12):4466-79
PMID: 5700666
-
Cytoplasmic filaments and tubules.
Fed Proc. 1968 Sep-Oct;27(5):1186-93
PMID: 5673268
-
Flagellar elongation and shortening in Chlamydomonas. The use of cycloheximide and colchicine to study the synthesis and assembly of flagellar proteins.
J Cell Biol. 1969 May;41(2):600-19
PMID: 5783876
-
Simple method for quantitive densitometry of polyacrylamide gels using fast green.
Anal Biochem. 1970 Jun;35(2):359-70
PMID: 4194859
-
Nutritional studies with Chlamydomonas reinhardi.
Ann N Y Acad Sci. 1953 Oct 14;56(5):831-8
PMID: 13139273
-
An improvement in a procedure for counting tritium and carbon-14 in polyacrylamide gels.
Anal Biochem. 1970 May;35(1):296-7
PMID: 5424166
-
Stabilizing effects of D2O on the microtubular components and needle-like form of heliozoan axopods: a pressure-temperature analysis.
J Cell Physiol. 1971 Apr;77(2):187-94
PMID: 4929376
-
Cilia regeneration in Tetrahymena and its inhibition by colchicine.
J Cell Biol. 1969 Feb;40(2):415-25
PMID: 4882889
-
A method for immediate visualization of proteins in acrylamide gels and its use for preparation of antibodies to enzymes.
Anal Biochem. 1969 Sep;30(3):391-4
PMID: 4186081
-
Evidence for four classes of microtubules in individual cells.
J Cell Sci. 1967 Jun;2(2):169-92
PMID: 4104123
-
Thermal fractionation of outer fiber doublet microtubules into A- and B-subfiber components. A- and B-tubulin.
J Mol Biol. 1970 Feb 14;47(3):353-63
PMID: 5461463
-
Effects of mitotic spindle inhibitors on neurotubules and neurofilaments in anterior horn cells.
J Cell Biol. 1968 Jul;38(1):224-9
PMID: 5691976
-
Isolation of microtubule protein from cultured mouse neuroblastoma cells.
Proc Natl Acad Sci U S A. 1970 Jan;65(1):129-36
PMID: 5263744
-
Are cytoplasmic microtubules heteropolymers?
Proc Natl Acad Sci U S A. 1971 Aug;68(8):1762-6
PMID: 5288762