Blocking Effect of Demethylzeylasteral on the Interaction between Human ACE2 Protein and SARS-CoV-2 RBD Protein Discovered Using SPR Technology.
Molecules
; 26(1)2020 Dec 24.
Article
in English
| MEDLINE | ID: covidwho-1044927
ABSTRACT
The novel coronavirus disease (2019-nCoV) has been affecting global health since the end of 2019, and there is no sign that the epidemic is abating. Targeting the interaction between the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein and the human angiotensin-converting enzyme 2 (ACE2) receptor is a promising therapeutic strategy. In this study, surface plasmon resonance (SPR) was used as the primary method to screen a library of 960 compounds. A compound 02B05 (demethylzeylasteral, CAS number 107316-88-1) that had high affinities for S-RBD and ACE2 was discovered, and binding affinities (KD, µM) of 02B05-ACE2 and 02B05-S-RBD were 1.736 and 1.039 µM, respectively. The results of a competition experiment showed that 02B05 could effectively block the binding of S-RBD to ACE2 protein. Furthermore, pseudovirus infection assay revealed that 02B05 could inhibit entry of SARS-CoV-2 pseudovirus into 293T cells to a certain extent at nontoxic concentration. The compoundobtained in this study serve as references for the design of drugs which have potential in the treatment of COVID-19 and can thus accelerate the process of developing effective drugs to treat SARS-CoV-2 infections.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Triterpenes
/
Viral Proteins
/
Surface Plasmon Resonance
/
Protein Interaction Domains and Motifs
/
Angiotensin-Converting Enzyme 2
/
SARS-CoV-2
Type of study:
Experimental Studies
Limits:
Humans
Language:
English
Journal subject:
Biology
Year:
2020
Document Type:
Article
Affiliation country:
Molecules26010057
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