Related Experiment Video

Updated: Jan 28, 2026

Myosin-Specific Adaptations of In vitro Fluorescence Microscopy-Based Motility Assays
08:57

Myosin-Specific Adaptations of In vitro Fluorescence Microscopy-Based Motility Assays

Published on: February 4, 2021

6.6K

Class I myosins: Highly versatile proteins with specific functions in the immune system

Daniel Alberto Girón-Pérez1, Zayda Lizbeth Piedra-Quintero1, Leopoldo Santos-Argumedo1

  • 1Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, México.

Journal of Leukocyte Biology
|March 2, 2019
PubMed

Insights

Class I myosins are crucial motor proteins connecting actin cytoskeleton to cell membranes, regulating vital cell functions. This review summarizes their roles in vertebrates, especially leukocytes, highlighting areas needing further research.

Area of Science:

  • Cell Biology
  • Molecular Motors
  • Immunology

Background:

  • Class I myosins link the actin cytoskeleton to plasma membrane phospholipids.
  • These motor proteins are essential for cellular processes like migration, trafficking, and cytokinesis.
  • They play roles in endocytosis, exocytosis, vesicle release, and immune cell signaling.

Purpose of the Study:

  • To review and summarize the current understanding of Class I myosins in vertebrates.
  • To emphasize the specific functions and properties of Class I myosins in leukocytes.
  • To identify knowledge gaps regarding their regulation and mechanical characteristics.

Main Methods:

  • Literature review of existing studies on Class I myosins.
  • Focus on research concerning vertebrate and leukocyte Class I myosins.
  • Synthesis of information on localization, function, regulation, and mechanics.

Main Results:

  • Class I myosins are key regulators of actin dynamics in diverse cellular contexts.
  • Their involvement spans fundamental cell processes and specialized immune cell functions.
  • While localization is known, detailed functions and mechanics remain less understood.

Conclusions:

  • Class I myosins are vital for cellular architecture and dynamic processes.
  • Further investigation into their regulation and mechanical properties is warranted, particularly in leukocytes.
  • This review consolidates current knowledge and points towards future research directions.

Keywords:
class I myosinscytoskeletonleukocytesmolecular motorsplasma membrane

More Related Videos

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay10:12

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay

Published on: August 8, 2013

17.1K
Visualizing Antigen Specific CD4+ T Cells using MHC Class II Tetramers15:42

Visualizing Antigen Specific CD4+ T Cells using MHC Class II Tetramers

Published on: March 6, 2009

22.2K

Related Concept Videos

Overview of Myosin Structure and Function01:15

Overview of Myosin Structure and Function

Myosins are a family of molecular motor proteins, first identified in the skeletal muscles, where they are responsible for muscle contraction. Along with their role in muscle contraction, these proteins also play a role in the intracellular transport of molecules and vesicles. There are twenty-four classes of myosins based on their domain sequence and organization. Of the twenty-four, six classes (Myosin I, Myosin II, Myosin V, Myosin VI, Myosin VII, and Myosin X)  have been well...
6.5K
Mechanical Protein Functions01:58

Mechanical Protein Functions

Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.6K
Structural Protein Function01:56

Structural Protein Function

Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity.  In bones and teeth, it mineralizes to...
29.9K
Functions of the Lymphatic and Immune System01:28

Functions of the Lymphatic and Immune System

The lymphatic system plays a crucial role in bolstering our immune system. It consists of a network of lymphoid organs, lymph, and lymphatic vessels that provide structural and functional support in safeguarding the body against pathogens such as viruses and bacteria.
The primary lymphoid organs, including the bone marrow and the thymus, serve as the maturation sites for lymphocytes. Secondary lymphoid organs, like the mucosa-associated lymphoid tissue, activate these lymphocytes and serve as...
6.8K
What is the Immune System?01:38

What is the Immune System?

Overview
127.6K
Humoral Immune Responses01:36

Humoral Immune Responses

Overview
83.8K