I have downloaded some SNP data sets published in 2012 (http://www.biologiaevolutiva.org/dcomas/north-african-affy-6-0-data-henn-et-al-submitted/, http://mega.bioanth.cam.ac.uk/data/Ethiopia/).
I am trying to merge the data with recent data, but it seems to me that the data is using an older Hg build (I am assuming Hg18) and the rs numbers don't match my relatively new, existing data as well as I would expect them.
For example, here is a site that corresponds in those two 2012 map files
1 rs7519837 1.06103 1500664
1 rs7519837 0 1500664
but when you search for it in dbSNP, the coordinates are different.
I was wondering, how can I individually update the coordinates and rsIDs of these map files? Thanks!