Feb, 2008: ALEXA is now published in Nature Methods. The purpose of this site is to make the ALEXA platform and supporting materials available to the public.

Complete array designs are now available for ten EnsEMBL species. Refer to the Designs page for more details.

Oct, 2007: Updated version of ALEXA (v1.1) released. The updated source code and 'Virtual Machine Appliance' are both available in the Platform section.

If you have questions which are not addressed by the information found on this website, feel free to Contact Us directly.

ALEXA is a microarray design platform for 'alternative expression analysis'. This platform facilitates the design of gene expression arrays for analysis of mRNA isoforms generated from a single locus by the use of alternative transcription initiation, splicing and polyadenylation sites.

To learn more about the these designs and how they are created, check out the Intro and Methods sections. Pre-computed designs are available in the Design section. A description of experiments used to validate the performance of these arrays is available in the Validation section. Finally to download the platform, refer to the Platform section.

Citation: Malachi Griffith, Tang MJ, Griffith OL, Morin RD, Chan SY, Asano JK, Zeng T, Flibotte S, Ally A, Baross A, Hirst M, Jones SJM, Morin GB, Tai IT and Marco A. Marra. ALEXA - A microarray design platform for alternative expression analysis. Nature Methods. Feb 2008. 5(2):118. Pubmed | Full text | PDF | Supplementary Information