The SCA database is a human spinocerebellar ataxia disease database designed to provide clinicians and researcher who study this disease the information of all possible short tandem repeats-containing genes within the disease-mapped chromosome regions, their genetic-links, priority selection tool, primer design tools and some of the experimental test results of these genes.

The SCA database candidate genes are generate from the database contain various sequence phases of NCBI High-throughput Genomic Sequences (HTGS) locate on the disease mapped chromosome region determined by serveral genetic and physical maps. These sequecnes are annotated by the NCBI UniGene database and indentical sequecens from different species from PIR NREF database.

The web site provide direct text search (base on keywords or terms), conditional search (STR length, types or relationship between repeats and gene, priority selection (define the scoing matrix) and sequence search (BLAST, pattern search, aroundSTR and candidate genes match)

SCA is available for free downloading and redistrbution from our FTP site in FASTA format (sequence file) and XML format (data file). The database release 6, 10-June-2003, contains 3,185 candidate genes and 12,672 STR sites from: