A database designed to computationally aid an experimental approach to alternative splicing. 
A unique microarray approach has been developed to profile alternative splicing in the cell.  To support the development of this approach, we have developed the Manually Annotated Alternatively Spliced Events (MAASE) database system, which is a unique alternative splicing information resource designed specifically with experimentalists in mind.  MAASE is an online resource for the convenient access, identification, and annotation of alternative splicing events (ASEs).  MAASE consists of two components: an annotation system and a curated database.  The annotation system is a web-based workspace that combines manual and computational approaches to identifying and annotating ASEs, a combination that is vital if a comprehensive collection is to be obtained.  The annotation system is publicly available and provides a scalable solution to acquiring as well as contributing to annotated ASEs.  MAASE annotated ASEs are deposited into the database component, which can either be queried one entry at a time or multiple entries at a time with convenient access to alternatively spliced junctional and surrounding sequences to facilitate the design of microarray experiments.