OMIM

Regularly updated, OMIM has become a major
source of information on human genes and
genetic diseases. Each entry has a unique 6-
digit identifying number and is assigned to one
of five catalogs according to genetic category:
(1) autosomal dominant, (2) autosomal recessive,
(3) X-chromosomal, (4) Y-chromosomal,
and (5) mitochondrial. Autosomal entries initiated
since 1994 begin with the digit 6. The
McKusick catalog has provided a systematic
basis for the genetics of man comparable to the
first periodic table of chemical elements by
Dimitrij I. Mendelyev in 1869 or to the
“Chronologisch-thematisches Verzeichnis
sämtlicher Tonwerke Wolfgang Amade
Mozarts” by Ludwig Alois Ferdinand Köchel in
1862.