How many inherited diseases have a known sequence associated with them?
The OMIM database does not track this number specifically. In addition, the number of cloned (i.e., sequenced) genes for human genetic disorders depends on how “disorder” and “clone” are defined (e.g., full length, partial). However, there are two subsets of OMIM records that are related to the question and might be of interest: • records that describe GENES of known sequence and phenotype; these have MIM numbers that begin with the plus sign (+) prefix. • records that describe PHENOTYPES that have a known molecular basis; these have MIM numbers that begin with the pound sign (#) prefix. To see the number of records whose MIM number has either prefix, you can (a) see the OMIM statistics page, or (b) activate the check box for the prefix of interest on the OMIM Limits page and press the Go button. Both approaches display the number of records in each subset and enable you to retrieve the records.
