PSMA2 and ganglioneuroma: In the comparison between the GN-UP and Neg groups, Mutant Hemoglobin Subunit Alpha-2 (A0A385HVZ2) and Alpha-1-Antitrypsin M Brescia variant (Q2L9S7) showed the highest degree of interaction in the PPI network, followed by Spectrin Alpha Chain, Non-erythrocytic 1 (SPTN1), Serpin Family A Member 3 (G3V3A0), cDNA FLJ58164 (B4DRE8), and HRG.