This track shows locations of Simple Nucleotide Polymorphisms detected primarily by looking at overlaps between clones that cover the same region of the genome.
The SNPs in this track include all of the polymorphisms that can be mapped against the current assembly. These include known point mutations (Single Nucleotide Polymorphisms), insertions, deletions, and segmental mutations from the current build of dbSNP.
There are three major cases that are not mapped and/or annotated:
The heuristics for the non-SNP variations (i.e. named elements and STRs) are quite conservative; therefore, some of these are probably lost. This approach was chosen to avoid false annotation of variation in inappropriate locations.
Thanks to the SNP Consortium and NIH's dbSNP for providing these data.