| 
 | 
  
 | 
 
 
 
   
 
|  Initial annotation  | 
 545   | 
 Dunham et al. 1999   | 
|  genscan + RT-PCR  |  
 590 | 
 Das et al. 2001  | 
  
| genscan + microarrays | 
 730  | 
 Shoemaker et al. 2001  | 
 
| Revised annotation | 
 726 | 
 chr22 team,Sanger 2001 | 
 
| DB searches | 
 800 | 
 Wrigth et al. 2001 | 
 
| geneid predictions | 
 794 | 
 IMIM/UPF | 
 
| genscan predictions | 
 1128  | 
 MIT  | 
 
  
 |