GK
SOIL AND AGRICULTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Intermediate
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Microtubules
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Actin filaments
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All of these
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Detailed explanation-1: -Tubulin -and -subunits have molecular weights of 50 kDa and are 36–42% identical and 63% homologous. Both tubulin subunits bind guanine nucleotides. The binding to -tubulin at the N-site is nonexchangeable, while the binding to -tubulin at the E-site is exchangeable.
Detailed explanation-2: -The alpha and beta tubulins are two globular proteins that make the alpha beta dimer in microtubules. Therefore, Alpha and beta tubulin dimer is the basic building block of microtubules. Moreover, alpha tubulin contains Asp-254 at the E-site while beta-tubulin contains Lys-254 at the N-site.
Detailed explanation-3: -Microtubules are the largest type of filament, with a diameter of about 25 nanometers (nm), and they are composed of a protein called tubulin.