Difference Between Actin Filaments and Microtubules
Some differences between actin filaments and microtubules are given as follows:
|
Feature |
Actin Filaments |
Microtubules |
|---|---|---|
|
Structure |
They are thin helical filaments with 7 nm diameter |
These are cylindrical tubes that are hollow with a diameter of 25 nm |
|
Composition |
Made up of G proteins as subunits |
They are made up of alpha and beta tubulin which are the subunits |
|
Function |
Cellular movement, cytokinesis, cell division, cytoskeletal component |
Provide tructural support to the cell, responsible for transport and organisation |
|
Polarisation |
Are polar in nature |
Are polar in nature (with assembly and dissembly) |
|
Motor Proteins |
Myosin which is responsible for the contraction of the cell |
The motor proteins are dyneins and kinesins which are responsible for intracellular transport |
Actin Filaments
Actin filaments are microscopic, filamentous structures present in the cytoskeleton. Actin filaments function in cell movement, providing structural support, and facilitating cellular processes such as cytokinesis and cell division. These filaments are dynamic polymers made up of actin protein subunits that create complex networks within cells. In this article, we will look at the structure, function, and dynamics of actin filaments and how they affect cellular functions.
Table of Content
- What is Actin Filament?
- Structure of Actin Filaments
- Dynamics of Actin Filament
- Comparison Among Different Actin Binding Proteins
- What are the Cellular Processes of Actin?
- Functions of Actin Filaments
- Difference Between Actin Filaments and Microtubules