ZNF33B (zinc finger protein 33B) is a transcriptional regulator located at chromosome 10.2 that has evolved through gene duplication and chr10 rearrangement 1. The protein contains zinc finger domains critical for DNA binding, with evidence suggesting ZNF33B has remained constrained by selection for ancestral gene function 2. Beyond its canonical transcriptional role, ZNF33B exhibits sex-differential effects on atopy-related markers in childhood asthma, with gene expression moderately associated with atopy specifically in girls but not boys 3. Remarkably, ZNF33B functions as a host factor facilitating Japanese encephalitis virus (JEV) replication by translocating from nucleus to cytoplasm during viral infection, where it stabilizes viral RNA and the nonstructural protein NS5 through recruitment of heat shock proteins HSPB1/8 to promote SUMOylation, thereby protecting NS5 from proteasomal degradation 4. Additionally, copy number variations in ZNF33B are associated with suicide attempts in major depressive disorder, particularly in individuals with high neuroticism 5. These findings reveal ZNF33B as a multifunctional protein linking transcriptional regulation, immune-related traits, and host-pathogen interactions, making it a potential therapeutic target for both neuropsychiatric and viral diseases.