#pg	level1	level2	level3	level4	ko	acc
0	unclassified	unclassified	unclassified	unclassified	unclassified	unclassified
1	unclassified	unclassified	unclassified	unclassified	unclassified	unclassified
2	06_Amino acid utilization biosynthesis metabolism	Alanine, aspartate and glutamate metabolism (contain asparagin as well)	unclassified	unclassified	K01744	HMMsoil14642
3	unclassified	unclassified	unclassified	unclassified	unclassified	unclassified
4	unclassified	unclassified	unclassified	unclassified	unclassified	unclassified
5	11_Nitrogen cycle	Nitrification (aerobic ammonia oxydation, bacterial and archea)	Ammonia to hydroxylamine	unclassified	K10944	various
6	unclassified	unclassified	unclassified	unclassified	unclassified	unclassified
