Chromosome 3

Chromosome 3 represents approximately 6.5% of the total DNA in cells.


  • autosome
  • large sized chromosome
  • about 200,000,000 base pairs
  • about 1,469 genes

Gene examples of chromosome 3:

The product of the gene BTD is the enzyme Biotinidase. This enzyme allows the body to use and to recycle vitamin B (biotin).

POPDC2: This gene belongs to the POP gene family and is predominantly expressed in skeletal and cardiac muscle. The POP genes are believed to have an important role in the embryonic and fetal development of these tissues.

The chromosome 3 image

The whole chromosome 3 image has a width of 3500 px and a height of 57005 px. It is too big to display here but you can download the chromosome 3 image. A 200 px wide overview of the chromosome can be seen on the right (bottom). Additionally, we show some details out of the original sized chromosome picture below.

Image details (examples):