<p>Hi,</p>

<p>I heard about a tool which lets you search for papers based on a set of genes that you input and it returns papers that have mentioned a significant set of those genes.</p>

<p>Does anyone know what tool this is?</p>

<p>Thanks</p>

In R you can do this using Org.HS. Below is an example:

```
source("http://bioconductor.org/biocLite.R")
biocLite("org.Hs.eg.db")
library("org.Hs.eg.db")

# mapped_genes are all the genes that org.HS.egPMID covers (the HS refers to homosapien). These genes are in Entrez format.

# entrez2Pmid is a list taking entrez gene ids to a vector of Pmids.

mapped_genes <- mappedkeys(org.Hs.egPMID)
entrez2Pmid <- as.list(org.Hs.egPMID[mapped_genes])

# now if you have an entrez gene id you can look up the relevant papers by doing

entrez2Pmid[myEntrezGene]
```

[Here][1] is a pastebin of the code since I stink at using the biostars code formatter 

There is a tutorial [here][2].

Also you can just use http://idconverter.bioinfo.cnio.es/IDconverter.php. Although I've found that sometimes the results seem to be a subset of the results you get using the method outlined above.

 [1]: http://pastebin.com/JCa6L7sB
 [2]: http://www.bioconductor.org/packages/release/data/annotation/manuals/org.Hs.eg.db/man/org.Hs.eg.db.pdf