KEGG in Keg

GhostKOALA

Automatic KO assignment and KEGG mapping service
BlastKOALA GhostKOALA KofamKOALA

KOALA job status 2026/08/11 11:14:30 (GMT+9)
BlastGhostKofam
Number of jobs in the queue110
Submission of last completed job2026/08/11 10:14:352026/08/11 10:05:282026/08/11 05:28:31

GhostKOALA assigns K numbers to the user's sequence data by GHOSTX search against reference GENES datasets, the same datasets used by BlastKOALA.    See Step-by-step Instructions.


Upload query amino acid sequences in FASTA format
Enter FASTA sequences

Or upload file:
Your query data consisting of multiple amino acid sequences will be given K numbers by GhostKOALA.
The file size of up to 300 MB with the limit of 500,000 sequences may be uploaded.

Select reference GENES datasets to be searched
Eukaryotes + Prokaryotes + Viruses
Prokaryotes + Viruses
Eukaryotes and prokaryotes contain sequences of KEGG reference genomes and sequences linked from pubmed records of KO data. Viruses contain all sequences of KEGG viruses.

Enter your email address (institutional only, no free emails)
An email will be sent to you for confirmation of your input data. You will have to click on the link in the email to initiate your job. When the job is finished, you will receive another email for browsing the result and performing KEGG Mapper analysis. You cannot request another job until the current one is finished or canceled.   Notice: Your email address will not be used for any other purpose.

Reference
  1. Kanehisa, M., Sato, Y., and Morishima, K.; BlastKOALA and GhostKOALA: KEGG tools for functional characterization of genome and metagenome sequences. J. Mol. Biol. 428, 726-731 (2016). [pubmed] [pdf]

Last updated: December 1, 2024
Version 3.1