GOAPhAR integrates information from different sources for Gene Annotation, Protein Annotation, Protein Interactions, Gene Ontology and Biological Pathways. Each of the categories consist of links that point to open access databases (Genbank,Swissprot) and applications such as GeneCards and IHOP that provide additional annotation.

The source of annotation is provided below
Gene Identifiers Genbank, Affymetrix, Unigene, Ensemble, Gene Reference Sequence Identifiers
Gene Annotation/Gene Title/Gene Symbol NetAFFX
Gene Homologous Sequences NCBI-Homologene
Gene Chromosome Location Ensemble
Gene Microarray Datasets NCBI-GEO Profiles
Gene Annotation Resources GeneCards
Protein Identifiers Swissprot, Protein Reference Sequence Identifiers
Protein Domains ProDom
Protein Families Pfam
Protein Structures MODBASE
Protein Interaction Information IHOP
Protein Interactions PreBind
Gene Ontology Affymetrix-NetAFFX, QuickGO, EP:GO
Biological Pathways KEGG, Biocarta, GenMAPP, SPAD, CellML, Panther.
Statistical Cluster Validity Indices Davies-Bouldin Index, Dunn's Index, Silhouette Index
GOAPhAR Information Page