Get SNPs in a specified human chromosomal region
using NCBI eSearch and eFetch (NEW)

(As of June 18, 2010 this software is no longer available.)

This form will display information about SNPs specified either by SNP ID, or by a chromsome region. To find SNPs in a chromosome region it currently searches the XML version of NCBI's dbSNP database.

Find SNPs in a chromosome region by searching:
       NCBI Entrez (which returns SNPs with mappings unique to a single chromosome)

Choose among the following display options:

Enter a chromosome number and a base position range. Range values must be integer base location values larger than zero specifying a range less than 1 million bases. (Larger values may result in overloading the NCBI web servers.)

Chromosome number (one of 1-22, X, Y, MT):

Range beginning with , and ending with

Example: Chromosome 2, from position 1 to 20000

AND/OR enter a blank- or comma-separated list of Reference SNP IDs (such as "242,244" or "rs242,rs244"):

Note that many eFetch requests for NCBI SNPs WERE...WERE failing with the message

      Error: Can't retrieve docsum for ...

This problem has been FIXED by NCBI, but here may be other errors, SO please examine your results carefully, as always.

   

Please direct inquiries to the Biomedical Applications group within UITS at Indiana Unviersity via data @ indiana.edu.