ZNF345 is a zinc finger protein predicted to function as a transcriptional regulator based on its DNA-binding capacity and association with RNA polymerase II-dependent transcription. The protein contains zinc finger domains enabling sequence-specific double-stranded DNA binding and acts as a transcription factor within the nucleus. Clinically, ZNF345 has emerged as a methylation biomarker for Barrett's esophagus, a premalignant condition predisposing to esophageal adenocarcinoma. ZNF345 promoter hypermethylation is significantly elevated in Barrett's esophagus tissue compared to normal squamous esophageal and gastric cardia controls 1, with methylation levels correlating with intestinal metaplasia extent 2. When combined with other methylated genes (TFPI2, TWIST1, ZNF569), ZNF345 methylation achieves diagnostic sensitivity and specificity for Barrett's esophagus detection in non-endoscopic cytology samples 1. Additionally, ZNF345 has been identified as a differentially expressed gene in osteoarthritis chondrocytes, potentially regulated by long non-coding RNAs involved in cell cycle pathways 3. These findings suggest ZNF345 plays roles in both transcriptional regulation and disease-associated epigenetic modifications, though its specific transcriptional targets remain to be characterized.