KofamKOALA assigns K numbers to the user's sequence data by HMMER/HMMSEARCH against KOfam (a customized HMM database of KEGG Orthologs (KOs)). K number assignments with scores above the predefined thresholds for individual KOs are more reliable than other proposed assignments. Such high score assignments are highlighted with asterisks '*' in the output. The K number assignments facilitate the interpretation of the annotation results by linking the user's sequence data to the KEGG pathways and EC numbers.
This tool is as easy to use as any BLAST-like tool, input a sequence and get results after a few minutes. The results in the KofamKOALA tool are not pretty but they get the job done.