Exhibit 21

List of Subsidiaries

 

Subsidiary*

 

Jurisdiction of

Incorporation

 

Name Under which

Subsidiary does Business

Ingenex, Inc.

 

Delaware

 

This subsidiary is currently inactive

Developmental Therapeutics, Inc.

 

Delaware

 

Developmental Therapeutics


* We own 100% of the outstanding common stock of Developmental Therapeutics, Inc. and 81% of the outstanding common stock of Ingenex, Inc.