X is single letter lab designation
F-University of Florida, Gainesville, Florida, USA
I- Institute of Molecular Medicine, Oxford, United Kingdom
M-Menzies School of Health Research, Darwin, Northern Territory, Australia
R- National Institute of Medical Research, Mill Hill, United Kingdom
S- Sloan Kettering Institute for Cancer Research, New York, NY, USA
W-Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria,
Australia.
The next two digits are the chromosome number. If the STS has not been
assigned to a chromosome, it is given the designation 00.
The next four digits are the STS number
The Nomenclature for the primers corresponding to a particular STS are X00-0000y where y is either a or b corresponding to the order of primers in the list.