Sequence variation database project at the European Bioinformatics Institute

Information technology tools for efficient SNP studies

We are currently facing a new era of studies involving single nucleotide polymorphisms (SNPs). This increased attention is stimulated by interest in individual differences in disease susceptibility as well as individual responses to drug treatment and the falling cost of genotyping. This review is a guide to the numerous public data repositories and Information Technology (IT) tools that may aid planning, preparation, running and analysis of studies involving SNPs. I will also highlight areas where researchers will have to resort to home-made IT solutions. Unfortunately, both information and IT tools are scattered throughout the internet and a lack of data exchange conventions can hamper the efficient use of these existing resources. This can lead to situations where the planning, preparation and analysis of a SNP study can actually cost more than the actual genotyping. We propose that only a customizable backbone IT infrastructure for SNP studies can help reduce costs associated with SNP data handling and tool launching.

Time for a unified system of mutation description and reporting: a review of locus-specific mutation databases

Mutation databases of human genes are assuming an increasing importance in all areas of health care. In addition, more and more experts in the mutations and diseases of particular genes are curating published and unpublished mutations in locus-specific databases (LSDB). These databases contain such extensive information that they have become known as knowledge bases. We analyzed these databases and their content between June 21, 2001, and July 18, 2001. We were able to access 94 independent websites devoted to the documentation of mutation containing 262 LSDBs for study. We analyzed one LSDB from each of these websites (i.e., 94 LSDBs) for the presence or absence of 80 content criteria, as generally each gene in a multigene website documented the same criteria. No criterion studied gave unanimous agreement in every database. Twenty-two genes were represented by more than one LSDB. The number of mutations recorded, excluding p53, was 23,822 with 1518 polymorphisms. Fifty-four percent of the LSDBs studied were easy to use and 11% hard to follow; 73% of the databases were displayed through HTML. Three databases were found that were given a high score for ease of use and wealth of content. Thus, the study provided a strong case for uniformity of data to make the content maximally useful. In this direction, a hypothetical content for an ideal LSDB was derived. We also derived a community structure that would enhance the chances of mutation capture rather than being left unpublished in a patient's report. We hope the interested community and granting bodies will assist in achieving the vision of a public system that collects and displays all variants discovered.

Central mutation databases--a review

The Internet has been a key component in the coordination of the diverse group of scientists involved in the Human Genome Project. Nowhere has this contribution been more critical than in the maintenance and exchange of information about genetic variation and mutation. Whereas the majority of DNA sequence is generated and stored by a relatively few sites, a far greater number of researchers investigate the variations in that sequence from sites scattered worldwide. It falls to central databases to utilize the Internet to assemble data from these sites and make them available to the greater human genomic community.

MuStaR and other software for locus-specific mutation databases

As the human genome sequencing project nears completion, there has been a vast increase in the rate at which disease and nondisease associated variant sequences are being sought and detected. This has heightened the need for software with which to accumulate allelic variant (mutation) data, and with which to make the data accessible to the scientific community. Many ad hoc solutions have been developed by those interested in specific genes and diseases, and the creation of central databases which hold data for all genes has provided an alternative repository for some of the locus data. Despite this, few specialised software tools exist for researchers to create their own locus-specific allelic variant databases. This article describes methods available to potential curators, including software systems developed with the sole purpose of generating locus-specific mutation databases. In particular, the authors' own software, MuStaRtrade mark, is described. MuStaRtrade mark allows curators to maintain a database on a laptop computer if desired, while being able to export the data to an automatically generated Website which will run on any cgi compliant Web server. Searching the database and the submission of new mutations are made possible through fill-in Web forms. A number of other software tools which may be of use to curators are also described.

Guidelines and recommendations for content, structure, and deployment of mutation databases: II. Journey in progress

The HUGO Mutation Database Initiative has produced guidelines and recommendations addressing uniform nomenclature of (human) genes and alleles, and computing standards to permit a moderate level of built-in redundancy, searchable interfaces, and compatibility between the comprehensive (genomic) and locus-specific types of databases. The participating community (developers and users) have been moving the project along rapidly, as described here.