Hi, I have a list of variants with varints id like 1_98929_A_G_b37 and repsonding GENE id like ENSG00000237094.7. Is there any R package or on-line tools that can convert these kind of hg 19 SNp id and ensenble id into rs id and ordianry gene names? 
 Any ideas is appreciated
If you've got the list of variants in VCF format, I'd recommend using the VEP tool 
[http://www.ensembl.org/info/docs/tools/vep/index.html][1]


It enables further annotation with gene name symbols and dbgap accessions etc. 

  [1]: http://www.ensembl.org/info/docs/tools/vep/index.html