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Bioinformatics Vol. 19 no. 6 2003
Pages 774-775
© 2003 Oxford University Press

Applications Note

GAAS: Gene Array Analyzer Software for management, analysis and visualization of gene expression data

M. Masseroli 1,*, P. Cerveri 1,2, P.G. Pelicci 3 and M. Alcalay 3,4

1 Bioengineering Department, Politecnico di Milano, I-20133 Milano, Italy
2 Bioengineering Center, Fondazione Don Gnocchi IRCCS ONLUS, I-20148 Milano, Italy
3 IEO - European Institute of Oncology, I-20139 Milano, Italy
4 IFOM - FIRC Institute of Molecular Oncology, I-20139 Milano, Italy

Received on July 15, 2002 ; revised on October 11, 2002 ; accepted on November 20, 2002

Summary: GAAS, Gene Array Analyzer Software supports multi-user efficient management and suitable analyses of large amounts of gene expression data across replicated experiments. Its management framework handles input data generated by different technologies. A multi-user environment allows each user to store his/her own data visualization scheme, analysis parameters used, values and formats of the output data. The analysis engine performs: background and spot quality evaluation, data normalization, differential gene expression analyses in single and multiple replica experiments. Results of expression profiles can be interactively navigated through graphical interfaces and stored into output databases.

Availability: http://www.medinfopoli.polimi.it/GAAS/

Contact: masseroli{at}biomed.polimi.it

Supplementary information: http://www.medinfopoli.polimi.it/GAAS/

* To whom correspondence should be addressed.


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