Related Experiment Video
Updated: Aug 14, 2026
Methods to Identify the NMR Resonances of the 13C-Dimethyl N-terminal Amine on Reductively Methylated Proteins
Published on: December 12, 2013
[On a minor component found in the lysozyme reference standard]
Abstract:
A minor component separated by HPLC from egg-white lysozyme was found to have a different substrate specificity from the main component, lysozyme. However, it did not show any difference in molecular weight and immuno-cross reactivity from lysozyme. There was no evidence based on our study that this minor component is an artificially-produced substance.
Insights
A novel minor component of egg-white lysozyme exhibits distinct substrate specificity but shares molecular weight and immunoreactivity with the main lysozyme. This study found no evidence suggesting it is artificially produced.
Area of Science:
- Biochemistry
- Enzymology
Context:
- Egg-white lysozyme is a well-characterized enzyme.
- Separation techniques like High-Performance Liquid Chromatography (HPLC) are crucial for analyzing protein components.
Purpose:
- To characterize a minor component isolated from egg-white lysozyme.
- To compare its properties with the main lysozyme component.
Summary:
- A minor component, separated via HPLC from egg-white lysozyme, demonstrated altered substrate specificity compared to the primary lysozyme.
- This minor component was indistinguishable from lysozyme in terms of molecular weight and immunocross-reactivity.
- No evidence indicated the minor component was artificially synthesized.
Impact:
- Highlights potential heterogeneity within egg-white lysozyme preparations.
- Suggests the minor component may possess unique enzymatic functions.
- Contributes to a deeper understanding of lysozyme structure-function relationships.
