Human chromosome 22 pair after G-banding. One is from mother, one is from father.
Chromosome 22 pair in human male karyogram.
Features
Length (bp)
51,324,926 bp (CHM13)
No. of genes
417 (CCDS)[1]
Type
Autosome
Centromere position
Acrocentric[2] (15.0 Mbp[3])
Complete gene lists
CCDS
Gene list
HGNC
Gene list
UniProt
Gene list
NCBI
Gene list
External map viewers
Ensembl
Chromosome 22
Entrez
Chromosome 22
NCBI
Chromosome 22
UCSC
Chromosome 22
Full DNA sequences
RefSeq
NC_000022 (FASTA)
GenBank
CM000684 (FASTA)
Chromosome 22 is one of the 23 pairs of chromosomes in human cells. Humans normally have two copies of chromosome 22 in each cell. Chromosome 22 is the second smallest human chromosome, spanning about 51 million DNA base pairs and representing between 1.5 and 2% of the total DNA in cells.
In 1999, researchers working on the Human Genome Project announced they had determined the sequence of base pairs that make up this chromosome. Chromosome 22 was the first human chromosome to be fully sequenced.[4]
Human chromosomes are numbered by their apparent size in the karyotype, with chromosome 1 being the largest and chromosome 22 having originally been identified as the smallest. However, genome sequencing has revealed that chromosome 21 is actually smaller than chromosome 22.
^Cite error: The named reference CCDS was invoked but never defined (see the help page).
^Tom Strachan; Andrew Read (2 April 2010). Human Molecular Genetics. Garland Science. p. 45. ISBN 978-1-136-84407-2.
^Genome Decoration Page, NCBI. Ideogram data for Homo sapience (850 bphs, Assembly GRCh38.p3). Last update 2014-06-03. Retrieved 2017-04-26.
^Mayor, Susan (1999). "First human chromosome is sequenced". BMJ. 319 (7223). BMJ Group: 1453. doi:10.1136/bmj.319.7223.1453a. PMC 1117192. PMID 10582915.
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Ring chromosome22, also known as ring 22, is a rare chromosomal disorder. Ring chromosomes occur when the ends of a chromosome lose material and fuse...
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constitutional chromosomal translocation t(11;22)(q23;q11), owing to a 3:1 meiotic malsegregation event resulting in partial trisomy of chromosomes 11 and 22. An...
A karyotype is the general appearance of the complete set of chromosomes in the cells of a species or in an individual organism, mainly including their...
with the short arm of an acrocentric chromosome, such as in the chromosomes 13, 14, 15, 21, & 22. The Y chromosome can also contain satellites, although...
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marker chromosome (sSMC) is an abnormal extra chromosome. It contains copies of parts of one or more normal chromosomes and like normal chromosomes is located...
on the NF2 tumor suppressor gene on chromosome22. Schwannomatosis is caused by various mutations on chromosome22. Neurofibromatosis is an autosomal dominant...
Global Information
