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Map gene names to gene ids.

I've the some gene names (eg: 11-cis-retinol dehydrogenase, D-2-hydroxyacid dehydrogenase (NAD+), 3alpha-hydroxysteroid 3-dehydrogenase) and their corresponding EC number. I want to map these gene names to other gene ids like EntrezGene ID, Ensembl ID etc.

The number of entries are >1k, so I can't do manual annotation for these.

Can someone suggest a way to map these names to ids?

mapping gene proteins nomenclature id conversion
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updated by Ram Ram • written by kandoigaurav kandoigaurav

2 answers

Have you ever used Biomart? These genes belong to which organism? Which fields are you looking for exactly?

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written by komal.rathi komal.rathi

Yep. It doesn't limit the query to Gene names.

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written by kandoigaurav kandoigaurav

It does. For e.g. HGNC Symbol or WikiGene Name. However, like Devon Ryan suggested, using the correct AnnotationDbi package would be more appropriate & will give more "accurate" results.

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updated by Ram Ram • written by komal.rathi komal.rathi

I want to convert the gene names and not the symbols.

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written by kandoigaurav kandoigaurav

Got it! Use Bioconductor. It will give you Gene Symbols, Entrez ID, Ensembl Gene ID etc for your Gene Names.

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updated by Ram Ram • written by komal.rathi komal.rathi

Okay. Sounds cool. Lemme try. Thanks

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written by kandoigaurav kandoigaurav

Umm, can you tell me how to implement the package?

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written by kandoigaurav kandoigaurav

The general idea is to make a character vector of gene names that you want to look up and then do something like select(org.Mm.eg.db, keys=genes, columns=c("SYMBOL","ENTREZID","ENSEMBL"), keytype="GENENAME") will look for the gene symbol, entrez ID, and Ensembl ID associated with each gene name in the genes vector. Note that this isn't a bullet-proof method. For example, it won't find any of your examples because it's expecting other names. "11-cis-retinol dehydrogenase" is also called "retinol dehydrogenase 5", for example, and that'll be found. All of these values from from entrez, so there aren't mappings to every possible name.

If this doesn't work, I'd try something from this thread: Gene Id Conversion Tool

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written by Devon Ryan Devon Ryan

You can also try the EC IDs, which are called ENZYME with AnnotationDbi. That might end up working a bit better.

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written by Devon Ryan Devon Ryan

Have you tried the appropriate AnnotationDbi package in Bioconductor (e.g., org.Mm.eg.db or org.Hs.eg.db)?

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written by Devon Ryan Devon Ryan

No. Does it converts the gene name to any other ID? I'vent used Bioconductor yet.

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written by kandoigaurav kandoigaurav

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