Confusion about NOG, COG, ENOG, eggNOG numbers.

[lordofcatan]

Disclaimer: I have already searched this thread and links therein: http://seqanswers.com/forums/showthread.php?t=35035

I know there is an eggNOG database from embl that has all the OGs and COG numbers. However, I have run into a problem trying to find the identify of my NOG numbers. I have a long list of proteins and each one has a 'COG####' or a 'NOG#####'. The COG numbers are fine, I can look them up in the embl database annotation file and get their category and description. But when I try to find NOG numbers (e.g. NOG47889) I find nothing - these are not in the database or any other I have searched for.

One thing I have done is 'googled' NOG47889 and found this site: http://www.uniprot.org/uniprot/Q88FC2 which has a link to click on that is titled 'NOG47889'. Clicking this link brings me to the embl site, specifically here: http://eggnogdb.embl.de/#/app/results?seqid=Q88FC2 , which lists the eggNOG number of this protein as 'ENOG410XSKT'. That number exists in the embl eggNOG annotation file! Woo hoo! But I'm not going to google ever single NOG number and follow a uniprot link to the corresponding eggNOG number. Is there a hash that has the conversion from NOG to ENOG numbers?

[GenoMax]

While this is not going to get you the NOG to ENOG conversion you should at least be able to map the uniprot # to ENOG #: http://eggnogdb.embl.de/download/lat...ay-2015.tsv.gz