Thanks Elisabeth - very helpful! I had also looked into the Bisoconductor package VariantAnnotation that includes data objects such as polyPhen.Hsapiens.dbSNP131 - which maps most of the rsids to the humsavar dataset. it's obviously a bit out of date now so I much appreciate alternative data scourses that you mentioned.
Hi - in the humsavar dataset there are variants given by protein position and amino acid change. http://www.uniprot.org/docs/humsavar
Is there a way to convert these to chromosome positions and nucleotide changes? thanks.
I should probably add for clarification that some snps listed to do not have an rsid. this is a particularly challenging case because i am not able to join to UCSC snp tracks via rsid (where chromosomal positions exist)
1 answer
This file (humsavar.txt) is complemented by files of amino acid altering variants imported from Ensembl Variation databases. Mapped sequence variants are supplied per species in a tab delimited text file.ftp://ftp.uniprot.org/pub/databases/uniprot/current_release/knowledgebase/variants/
In particular, the human file is homo_sapiens_variation.txt.gz: The variants listed are the Ensembl Variation databases' set of 1000 Genomes project (http://www.1000genomes.org/) and Catalogue of Somatic Mutations In Cancer (COSMIC) v71, imported directly from COSMIC and via Ensembl Variation, protein altering variants (SO:0001583). COSMIC v71 variants are the last freely available somatic variants from COSMIC before their licence change; therefore the accuracy of the information provided for a COSMIC variant should be verified with COSMIC. (Text from README file in that directory)
Please don't hesitate to contact the UniProt helpdesk in case of questions about these files.
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