Chromosome 3 (human)

Chromosome 3 (human)

Human chromosome 3 pair after G-banding. One is from mother, one is from father.

Chromosome 3 pair in human male karyogram.
Length (bp) 198,295,559 bp
Number of genes 2,203
Type Autosome
Centromere position Metacentric[1]
RefSeq NC_000003
GenBank CM000665
Map of Chromosome 3
Ideogram of human chromosome 3. Mbp means mega base pair. See locus for other notation.

Chromosome 3 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 3 spans almost 200 million base pairs (the building material of DNA) and represents about 6.5 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 3 likely contains between 1,100 and 1,500 genes.


This list is incomplete; you can help by expanding it.

The following are some of the genes located on chromosome 3:



Diseases and disorders

This list is incomplete; you can help by expanding it.

The following diseases and disorders are some of those related to genes on chromosome 3:


  1. "Table 2.3: Human chromosome groups". Human Molecular Genetics (2nd ed.). Garland Science. 1999.
  2. CRBN cereblon [Homo sapiens (human)] - Gene - NCBI
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