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Protein Kinases and Phosphatases

Protein Kinases and Phosphatases

Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...

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Updated: Jul 7, 2025

Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein

Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein

Published on: June 30, 2019

Osteoclast Methods in Protein Phosphatase Research.

Nina Reuven¹, Maayan Barnea-Zohar¹, Ari Elson²

¹Department of Molecular Genetics, The Weizmann Institute of Science, Rehovot, Israel.

Methods in Molecular Biology (Clifton, N.J.)

|December 26, 2023

Summary

This summary is machine-generated.

This study details methods for isolating and differentiating mouse osteoclasts, crucial for bone health. Techniques include matrix resorption analysis, immunofluorescence, and gene editing for studying osteoclast function and bone diseases.

Keywords:

Bone CRISPR Osteoclast Pit formation Tyrosine phosphatase

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Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein

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Oligopeptide Competition Assay for Phosphorylation Site Determination

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Published on: May 18, 2017

Area of Science:

Cell Biology
Bone Biology
Biochemistry

Background:

Osteoclasts are vital for bone remodeling and homeostasis.
Dysfunctional osteoclasts are implicated in bone diseases like osteoporosis.
Protein phosphorylation is key to osteoclast signaling and activity.

Purpose of the Study:

To outline methods for isolating and differentiating mouse osteoclasts.
To detail techniques for analyzing osteoclast function and gene expression.
To provide a framework for studying osteoclast biology and disease.

Main Methods:

Isolation of mouse splenocytes and differentiation into osteoclasts.
Assessment of osteoclast matrix resorption on various surfaces.
Immunofluorescence staining and CRISPR-mediated gene knockout in RAW264.7 cells.

Main Results:

Established protocols for osteoclast differentiation and functional assays.
Demonstrated techniques for visualizing osteoclast morphology and protein localization.
Enabled genetic manipulation of osteoclast precursors for functional studies.

Conclusions:

The described methods facilitate comprehensive study of osteoclast biology.
These techniques are valuable for investigating the role of protein phosphorylation in osteoclast function.
This work supports research into bone diseases and therapeutic strategies targeting osteoclasts.