We retrieved 906 human OR sequences from the Human Olfactory Receptor
Data Exploratorium database :
- HORDE38 version- .
Of these, 714 sequences, spanning the TM2 to EC2 regions, were aligned and
used to construct a phylogram using the same
method as for the canine OR sequences. We identified 61 families,
separated in two classes as expected (19); 10 families for Class I, and
51 families for Class II. Families contain between 1 and 93 OR
sequences, and are divided into a total of 285 subfamilies.
Interestingly, 111 subfamilies contain only pseudogenes.
indicates OR Class
indicates OR family
indicates OR sub-family
