Chromosome 20
Chromosome 20 is one of the 23 pairs of chromosomes in humans. Chromosome 20 spans around 66 million base pairs (the building material of DNA) and represents between 2 and 2.5 percent of the total DNA in cells. Chromosome 20 was fully sequenced in 2001 and was reported to contain over 59 million base pairs. Since then, due to sequencing improvements and fixes, the length of chromosome 20 has been updated to just over 66 million base pairs.
| Chromosome 20 | |
|---|---|
Human chromosome 20 pair after G-banding. One is from mother, one is from father. | |
Chromosome 20 pair in human male karyogram. | |
| Features | |
| Length (bp) | 66,210,255 bp (CHM13) |
| No. of genes | 516 (CCDS) |
| Type | Autosome |
| Centromere position | Metacentric (28.1 Mbp) |
| Complete gene lists | |
| CCDS | Gene list |
| HGNC | Gene list |
| UniProt | Gene list |
| NCBI | Gene list |
| External map viewers | |
| Ensembl | Chromosome 20 |
| Entrez | Chromosome 20 |
| NCBI | Chromosome 20 |
| UCSC | Chromosome 20 |
| Full DNA sequences | |
| RefSeq | NC_000020 (FASTA) |
| GenBank | CM000682 (FASTA) |
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