Title
KARMA: a web server application for comparing and annotating heterogeneous microarray platforms.
Abstract
We have developed a universal web server application (KARMA) that allows comparison and annotation of user-defined pairs of microarray platforms based on diverse types of genome annotation data (across different species) collected from multiple sources. The application is an effective tool for diverse microarray platforms, including arrays that are provided by (i) the Keck Microarray Resource at Yale, (ii) commercially available Affymetrix GeneChips(R) and spotted arrays and (iii) custom arrays made by individual academics. The tool provides a web interface that allows users to input pairs of test files that represent diverse array platforms for either single or multiple species. The program dynamically identifies analogous DNA fragments spotted or synthesized on multiple microarray platforms based on the following types of information: (i) NCBI-Unigene identifiers, if the platforms being compared are within the same species or (ii) NCBI-Homologene data, if they are cross-species. The single-species comparison is implemented based on set operations: intersection, union and difference. Other forms of retrievable annotation data, including LocusLink, SwissProt and Gene Ontology (GO), are collected from multiple remote sites and stored in an integrated fashion using an Oracle database. The KARMA database, which is updated periodically, is available on line at the following URL: http://ymd.med.yale.edu/karma/cgi-bin/karma.pl.
Year
DOI
Venue
2004
10.1093/nar/gkh397
NUCLEIC ACIDS RESEARCH
Keywords
Field
DocType
gene expression profiling,internet
Annotation,Identifier,Genome project,Information retrieval,Biology,Set operations,Gene chip analysis,Bioinformatics,Genetics,Microarray databases,User interface,Web server
Journal
Volume
Issue
ISSN
32
SUPnan
0305-1048
Citations 
PageRank 
References 
4
0.50
6
Authors
8
Name
Order
Citations
PageRank
Kei-hoi Cheung166460.65
Janet Hager2111.85
Deyun Pan3343.71
Ranjana Srivastava4101.78
Shrikant Mane5332.67
Yuli Li6163.57
P L Miller744593.86
Kenneth Williams816621.56