A comprehensive knowledgebase of autism-related genes, CNVs and linkage regions with extensive evidence and annotations. AutismKB supports both text-based search and sequence-based search. Users can find a quick search box on the top right of each page to search by gene symbol. Advanced search was provided to search genes, CNVs, linkage regions by gene name, gene symbol, NCBI Entrez id, Ensemble id, GO terms, UniProt ID, location, score, method and PubMed ID. Finally, a BLAST search against the nucleotide or protein sequences of all AutismKB genes is also available.