>In the Nov. 15, 1996 issue of SCIENCE, Polymeropoulos et al.
>have mapped the gene for Parkinson's disease to chromosome 4.
>In particular, "between markers D4S2361 and D4S421 at a
>recombination distance of 0.00 cM from marker D4S1647".
>>I have only been able to locate marker D4S421. The other
>two don't seem to exist anywhere. I've tried Unigene,
>Genethon, and most of the other mapping sites on the web
>(like Sanger, Whitehead/MIT, Wellcome Trust -- even though
>they're not necessarily involved with Chromosome 4).
>>Could somebody explain why all markers would not be available,
>some false assumptions I've made in expecting to find them,
>or point to a site that I can locate them?
> Christian Barrett
You can find both these markers at the Genome Database (http://gdbwww.gdb.org/)
Department of Cytogenetics and Molecular Genetics
Womens and Childrens Hospital
North Adelaide, South Australia 5006
Ph 61 08 8204 6442
Fax 61 08 8204 7342