Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discrete charge patterns, Coulomb correlations and interactions in
  protein solutions   The effective Coulomb interaction between globular proteins is calculated as
a function of monovalent salt concentration $c_s$, by explicit Molecular
Dynamics simulations of pairs of model proteins in the presence of microscopic
co and counterions. For discrete charge patterns of monovalent sites on the
surface, the resulting osmotic virial coefficient $B_2$ is found to be a
strikingly non-monotonic function of $c_s$. The non-monotonicity follows from a
subtle Coulomb correlation effect which is completely missed by conventional
non-linear Poisson-Boltzmann theory and explains various experimental findings.

16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph