In addition to GO functional analysis, the associated KEGG pathways were also found as follows: HOXA9 was located in hsa05202 (Transcriptional misregulation in cancer), HRH1 in hsa04020 (Calcium signaling pathway), hsa04080 (Neuroactive ligand-receptor interaction), and hsa04750 (Inflammatory mediator regulation of TRP channels). The gene discussed is HRH1; the disease is cancer.