For example , allelic variants in the HBB gene ( 141900 ) are numbered 141900.0001 through 141900.0538 .
In cases of allelic heterogeneity , the MIM number of the entry is followed by a decimal point and a unique 4 - digit number specifying the variant .
Allelic variants in the HBB gene ( 141900 ) are numbered 141900.0001 through 141900.0538 .
In cases of allelic heterogeneity , the MIM number of the entry is followed by a decimal point and a unique 4 - digit number specifying the variant .