Converting NCBI refseq ids to ENTREZIDs

Question

[mmeghana]

Hi,

I had a very basic question. What is the easy way to convert NCBI RefSeq ids to ENTREZID either online or using any tools in R? Kindly help me with this as I am new to bioinformatics analysis. Thanks in advance.

Answer 1

[Nitin Narwade]

I think biomaRt would help you in this.

[mmeghana]

Will check that out. Thank you.