NCIt definition : Human ITM2B wild-type allele is located in the vicinity of 13q14.2 and is approximately
38 kb in length. This allele, which encodes integral membrane protein 2B, plays a
role in the inhibition of amyloid-beta precursor protein cleavage. Missense mutations
in the gene are associated with retinal dystrophy with inner retinal dysfunction and
ganglion cell abnormalities. C-terminal extension mutations in the gene are associated
with both the British and the Danish types of familial dementia.;