NUMTs are fragmentary copies of the mitochondrial DNA that have been 'captured' by chromosomes.
A 'capture' occurs rarely, but over millions of years the number of NUMTs has become appreciable.
The bases in NUMTs are subject to a low mutation rate and by studying the number of mutations,
as compared to the modern CRS, it is possible to make an estimate of a NUMT's age.
As a 'rule of thumb' there are about 3 mutations/1000bps every million years.
A few NUMTs have been formed in the last 5 million years old; and have BLAST scores of 90% - 100%.
Whereas, other NUMTs with BLAST matching scores of around 70% are perhaps 30-50 million years old.
For each chromosome there is a page which gives the details of all the larger NUMTs that are to be
found on that chromosome, together with some of the more interesting smaller NUMTs.
The actual sequences are taken from the James Watson browser.
There is also a page for each chromosome with details of the SNPs which are found in the NUMTs
on that chromosome. These details have also been taken from the James Watson browser.
Note the mtDNA base numbering used here comes the'Yoruba' reference sequence
- and the numbering is therefore slightly different to the CRS.
Please report any errors or omissions to Ian Logan.
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Chromosome No. of No. of Length of SNP No. of '23andMe'
NUMTs fragments NUMTs page SNPs SNPs
Chromosome 1 23 31 34469 SNP details 60 0
Chromosome 2 35 42 78669 SNP details 74 4
Chromosome 3 20 23 18887 SNP_details 40 2
Chromosome 4 17 22 30413 SNP details 39 3
Chromosome 5 18 20 29482 SNP details 57 3
Chromosome 6 6 10 6094 SNP details 14 0
Chromosome 7 11 17 41449 SNP details 67 8
Chromosome 8 16 29 32361 SNP details 62 6
Chromosome 9 9 12 22934 SNP details 37 4
Chromosome 10 11 14 15332 SNP details 26 4
Chromosome 11 13 14 21586 SNP details 63 5
Chromosome 12 7 7 2564 SNP details 6 1
Chromosome 13 11 13 6639 SNP details 13 2
Chromosome 14 4 6 8222 SNP details 7 0
Chromosome 15 2 4 7288 SNP details 17 2
Chromosome 16 6 9 13685 SNP details 39 0
Chromosome 17 7 11 19133 SNP details 24 4
Chromosome 18 4 4 783 SNP details 0 0
Chromosome 19 4 8 4353 SNP details 7 1
Chromosome 20 5 5 4171 SNP details 14 2
Chromosome 21 12 12 6411 SNP details 2 0
Chromosome 22 13 13 7185 SNP details 15 1
Chromosome X 16 36 31983 SNP details 41 3
Chromosome Y 4 9 8150 SNP details 0 0
For a summary of all the NUMTs - click here
For a summary of all the SNPs - click here
For a summary of all the '23andMe' SNPs - click here