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Updated: Aug 15, 2026
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Synthesis of 1,2-Azaborines and the Preparation of Their Protein Complexes with T4 Lysozyme Mutants
Published on: March 25, 2017
X-ray characterisation of an additional binding site in lysozyme
FEBS Letters
|July 8, 1985
Summary
Bromophenol red (BPR) inhibits lysozyme
Area of Science:
- Biochemistry
- Enzymology
- Structural Biology
Background:
- Lysozyme is a key enzyme in bacterial cell wall hydrolysis.
- Understanding lysozyme's mechanism is crucial for developing novel antibacterial strategies.
Purpose of the Study:
- To investigate the interaction between Bromophenol red (BPR) and lysozyme.
- To characterize the binding site of BPR on lysozyme using X-ray crystallography.
- To elucidate the implications of BPR binding on lysozyme's enzymatic activity.
Main Methods:
- X-ray crystallography of the BPR-lysozyme complex at 5.5A resolution.
- Enzyme activity assays to assess inhibition against bacterial cell walls and peptidoglycan components.
Main Results:
- Bromophenol red (BPR) binds to lysozyme and inhibits its activity.
- Inhibition is specific to the hydrolysis of bacterial cell walls, not the polysaccharide component.
- X-ray analysis revealed a novel BPR binding site outside the enzyme's active site cleft, near subsite F.
Conclusions:
- The novel binding site suggests BPR interacts with the peptide component of peptidoglycan.
- This interaction likely explains lysozyme's inhibition against bacterial cell walls.
- Findings provide insights into lysozyme's substrate specificity and potential therapeutic targeting.
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