Related Experiment Video
Updated: Aug 16, 2026

Combining Wet and Dry Lab Techniques to Guide the Crystallization of Large Coiled-coil Containing Proteins
Published on: January 6, 2017
A stabilized molten globule protein
1Research Center for Protein Chemistry, Institute of Molecular Medicine and the Department of Biochemistry and Molecular Biology, University of Texas, 2121 W. Holcombe Blvd., Houston, TX 77030, USA.
Abstract:
A predominant conformational isomer of non-native alpha-lactalbumin (alpha-LA) has been purified by thermal denaturation of the native alpha-LA using the technique of disulfide scrambling. This unique isomer retains a substantial content of alpha-helical structure. It is stabilized by two native disulfide bonds within the alpha-helical domain and two scrambled non-native disulfide bonds at the beta-sheet domain. This denatured isomer of alpha-LA exhibits structural characteristics that are consistent with the well-documented molten globule state. The ability to prepare a stabilized and structurally defined molten globule provides a useful model for studying the folding and unfolding pathways of proteins.
More Related Videos
07:22How to Stabilize Protein: Stability Screens for Thermal Shift Assays and Nano Differential Scanning Fluorimetry in the Virus-X Project
Published on: February 11, 2019
11:17Stability and Structure of Bat Major Histocompatibility Complex Class I with Heterologous β2-Microglobulin
Published on: March 10, 2021
Related Concept Videos
Protein Folding
Globular and Fibrous Proteins
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
Molecular Chaperones and Protein Folding
The...
Protein Folding
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Globular and Fibrous Proteins
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
Globular Proteins
Globular proteins serve many important physiological functions, such as acting as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be soluble in the aqueous...