Three positions on chromosome 3 are marked with
'N' in the UCSC version of the genome. These positions have IUPAC ambiguity codes in our version:
|
Position
|
IUPAC Ambiguity code in Ion reference
|
Hard masked character in UCSC hg19
|
|
60830534
|
M
|
N
|
|
60830763
|
R
|
N
|
|
60830764
|
R
|
N
|
