Could anyone suggest some useful experiment-proved pathway databases like KEGG or BioCarta, especially in human?

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Woody Lin

If you are doing human cancer research, PID and Reactome are recommended. Some reviewers don't like KEGG because they think KEGG is problematic and not human cancer related.

Volkan Ergin

I hope this page can help you :)

http://www.pathguide.org/

Michael Wendl

and perhaps consider PathScan for the actual analysis

http://bioinformatics.oxfordjournals.org/content/27/12/1595.short?rss=1

Florian Halbritter

@Woody: In which way / why is KEGG considered "problematic"?

Mark Ziemann

Experimentally derived gene sets curated by the Broad Institute.

http://www.broadinstitute.org/gsea/msigdb/index.jsp

Ann-Sofie Albrekt

I'm very happy with Metacore: http://thomsonreuters.com/metacore/

Olga Kel-Margoulis

You might be also interested to try TRANSPATH database, with about 400,000 manually curated experimentally proven reactions and over 1,600 pathways and reaction chains

http://www.genexplain.com/pathway-analysis

Marc E Gillespie

Come on over to Reactome. We are here and ready to help.

http://reactome.org