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. 2021 Aug 30;1:723482. doi: 10.3389/fbinf.2021.723482

FIGURE 2.

FIGURE 2

Protein-protein interaction types and protein level correlations between proteins across tumor samples in HCC. (A) Stoichiometric ratio between proteins. (B) Co-occurrence frequency of proteins. (C) Context-specific vs. general interactions. (D) Competitive vs. cooperative interactions. (E) Permanent vs. transient interactions. Wilcoxon test was performed to compare correlations between two groups in each class of PPIs.