GenBank Record for Variant m.12121T>C
918 FL sequences: 905 Main / 1 aDNA / 12 cancer, cell lines or cybrids; 0 CR sequences
click hyperlink to view GenBank Record, PubMed Reference, and Mitomaster running results

Count of the Variant in the Three hmtDNA Lineages in Mitomap
LineageL (African)
(6836 sequences)		M (Asian)
(12945 sequences)		N (Eurasian)
(42735 sequences)		All
(62556 sequences)
Count8048925918
Frequency in each lineage11.76%
(804/6836)		0.69%
(89/12945)		0.06%
(25/42735)		-
Frequency overall1.29%
(804/62556)		0.14%
(89/62556)		0.04%
(25/62556)		1.47%
(918/62556)

* Footnotes:

Full Length (FL) sequences are now classified into three subsets: aDNA for ancient DNA, CancerCL for cancer, tumor, other abnormal tissues, or cell line studies (include cybrids), and Main for the rest.

The current sequence counts are from two sets of human mitochondrial sequences collected from GenBank on Dec 10, 2025. These sets consist of: