Chromosome 20

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 genes516 (CCDS)[1]
TypeAutosome
Centromere positionMetacentric[2]
(28.1 Mbp[3])
Complete gene lists
CCDSGene list
HGNCGene list
UniProtGene list
NCBIGene list
External map viewers
EnsemblChromosome 20
EntrezChromosome 20
NCBIChromosome 20
UCSCChromosome 20
Full DNA sequences
RefSeqNC_000020 (FASTA)
GenBankCM000682 (FASTA)

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.[4] Since then, due to sequencing improvements and fixes, the length of chromosome 20 has been updated to just over 66 million base pairs.[5]

  1. ^ Cite error: The named reference CCDS was invoked but never defined (see the help page).
  2. ^ Tom Strachan; Andrew Read (2 April 2010). Human Molecular Genetics. Garland Science. p. 45. ISBN 978-1-136-84407-2.
  3. ^ Genome Decoration Page, NCBI. Ideogram data for Homo sapience (850 bphs, Assembly GRCh38.p3). Last update 2014-06-03. Retrieved 2017-04-26.
  4. ^ Deloukas P; et al. (2001). "The DNA sequence and comparative analysis of human chromosome 20". Nature. 414 (6866): 865–871. Bibcode:2001Natur.414..865D. doi:10.1038/414865a. PMID 11780052.
  5. ^ "Homo sapiens chromosome 20, GRCh37.p13 Primary Assembly". National Center for Biotechnology Information. Retrieved October 17, 2013.