3D ATOMIC MAP OF NOVEL CORONAVIRUS REPLICATION MECHANISM

Oct. 31, 2020

In the coronavirus, SARS-CoV-2 is an enzyme called the main protease, which drives its replication once it infects the human cell. For the first time, scientists have completed a 3D map that reveals the location of every atom in the molecule of this enzyme.

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SARS-CoV-2 expresses long chains of proteins. When these chains are broken down and cut into smaller strands, it enables the virus to reproduce.
This task is performed by the main protease. Its structure consists of two identical protein molecules held together by hydrogen bonds.
If a drug can be developed that inhibits or blocks the protease activity, it will prevent the virus from replicating and spreading to other cells in the body.
Researchers used a technique called neutron crystallography. The site containing the amino acids where the protein chains are cut, these experiments revealed, is in an electrically charged reactive state — not in a resting or neutral state, contrary to previously held beliefs.

Source : Indian Express