to virus (

- stepwise testing of each antibody to antigen,

- determination of key amino acid residue

- definition of resistance,

AI

An illustrative example of the comparison of calculated and experimental data aimed at increasing the affinity of the ACE2 protein for the Spike protein.

This short presentation allows you to visually compare the results of different methods.The experimental methods are briefly described on the right side of the page, the numerical results are presented in the graph on the left side of the page.

The following examples is made without comparison with experimental data

In continuation of the computational work, numerical calculations were performed on the substitutions of amino acid residues in the ACE2 protein

The vectors ACE2 from "0" to "3" are taken from the previous calculation presented in the figure above, the vectors ACE2 from "4" to "7" are described in the table below the graphs.

The last value "7" is in the low range of values lg(cond(W)), so we marked it on the graph with a number, the entropy change (delta)H of the vector "7" is also the maximum.

For the calculation, the obtained 3D model of the biological complex was used by the method of X-ray analysis 7DMU.pdb

The results of numerical calculations allow us to determine the following sequence of ACE2 vectors__by increasing affinity__ for the Spike protein:

Vector "6"

Vector "1"

Vector "4"

Vector "7"

The last value "7" is in the low range of values lg(cond(W)), so we marked it on the graph with a number, the entropy change (delta)H of the vector "7" is also the maximum.

For the calculation, the obtained 3D model of the biological complex was used by the method of X-ray analysis 7DMU.pdb

The results of numerical calculations allow us to determine the following sequence of ACE2 vectors

Vector "6"

Vector "1"

Vector "4"

Vector "7"