Chromosome 3 (Chr3)

Chromosome 3 is one of the 23 pairs of chromosomes in humans, representing approximately 6.5% of the total DNA in cells (NIH MedlinePlus, 2022). It spans about 198 million base pairs and encodes over 1,000 genes, including several critical tumor suppressors and oncogenes such as VHL, BAP1, and PIK3CA (Muir et al., 2006). While the chromosome itself is not a therapeutic target, many of its constituent genes and their protein products are major focuses of drug development, particularly in oncology. For instance, deletions of the short arm (3p) are frequently observed in clear cell renal cell carcinoma, leading to the loss of the VHL gene (NCBI, 2023). Other notable genes on this chromosome include the chemokine receptors (CCR1-CCR5) and the PIK3CA oncogene, which are targets for various inflammatory and anti-cancer therapies (UniProt, 2024). Understanding the landscape of Chromosome 3 is vital for identifying specific molecular targets and biomarkers for various genetic disorders and cancers. Therapeutic interventions typically focus on the specific proteins encoded by genes on this chromosome rather than the DNA structure itself.

Other names

Human Chromosome 3HSA33p3q

Not applicable as a whole chromosome is not a specific molecular drug target.