Wikipedia
Snpstr
A SNPSTR is a compound genetic marker composed of one or more SNPs and one microsatellite (STR). SNPSTRs were first described by Mountain et al. (2002) who developed experimental protocols for autosomal SNPSTRs which contain a SNP and a microsatellite within 500 base pairs of one another. More recently a database that contains all SNPSTRs in five model genomes, including human, has been created.