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BioAssay: AID 629625

Binding affinity to hen egg white lysozyme assessed as quenching rate constant at 310 K by Stern-Volmer plot analysis

The interactions of baicalein, baicalin and scutellarin with lysozyme (LYSO) were studied by fluorescence and UV spectroscopy. The results showed that all the three flavones can quench the fluorescence of LYSO via static quenching with the distance between the donor and acceptor less than 7 nm. The hydroxyl at B-ring gave flavones an advantage to binding with LYSO. Electrostatic forces played a more ..
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 Tested Compounds
 Tested Compounds
All(5)
 
 
Unspecified(5)
 
 
 Tested Substances
 Tested Substances
All(5)
 
 
Unspecified(5)
 
 
 Related BioAssays
 Related BioAssays
AID: 629625
Data Source: ChEMBL (787073)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2012-09-09
Modify Date: 2014-05-24

Data Table ( Complete ):           View All Data
Tested Compounds:
Description:
Title: Comparative studies on interactions of baicalein, baicalin and scutellarin with lysozyme.

Abstract: The interactions of baicalein, baicalin and scutellarin with lysozyme (LYSO) were studied by fluorescence and UV spectroscopy. The results showed that all the three flavones can quench the fluorescence of LYSO via static quenching with the distance between the donor and acceptor less than 7 nm. The hydroxyl at B-ring gave flavones an advantage to binding with LYSO. Electrostatic forces played a major role in stabilizing baicalein-LYSO complex and baicalin-LYSO complex, whereas hydrophobic interactions in scutellarin-LYSO. Furthermore, the presence of pantothenic acid can increase the binding constant and the number of binding sites between flavones and LYSO.
(PMID: 22051066)
Comment
Putative Target:

ChEMBL Target ID: 22226
Target Type: UNCHECKED
Pref Name: Unchecked
Confidence: Default value - Target unknown or has yet to be assigned
Relationship Type: Default value - Target has yet to be curated
Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

Result Definitions
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TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Kq activity commentKq activity commentString
2Kq standard flagKq standard flagInteger
3Kq qualifierKq qualifierString
4Kq published valueKq published valueFloat10'12L/mol/s
5Kq standard valueKq standard valueFloat10'12L/mol/s
6Kq activity commentKq activity commentString
7Kq standard flagKq standard flagInteger
8Kq qualifierKq qualifierString
9Kq published valueKq published valueFloat10'13L/mol/s
10Kq standard valueKq standard valueFloat10'13L/mol/s

Data Table (Concise)
Data Table ( Complete ):     View All Data
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