Table 5.

Functional notes of COG in Pb-contaminated tea garden soil bacteria.

Function class	The abundance of COG function in different treatments (×105)
	CK	ML	MM	MH	OL	OM	OH
RNA processing and modification	1	1	1	1	1	1	1
Chromatin structure and dynamics	6	6	6	6	6	6	6
Energy production and conversion	699	719	735	709	732	721	719
Cell cycle control, cell division, chromosome partitioning	151	157	157	150	158	154	155
Amino acid transport and metabolism	1,050	1,088	1,108	1,062	1,103	1,082	1,085
Nucleotide transport and metabolism	337	349	354	340	353	344	347
Carbohydrate transport and metabolism	669	695	704	680	701	684	691
Coenzyme transport and metabolism	650	673	685	657	683	669	668
Lipid transport and metabolism	503	518	534	508	531	519	511
Translation, ribosomal structure and biogenesis	907	935	947	911	947	925	931
Transcription	650	677	689	658	686	667	671
Replication, recombination and repair	431	445	452	433	451	440	442
Cell wall/membrane/envelope biogenesis	611	622	631	616	632	616	626
Cell motility	197	201	198	195	203	198	198
Posttranslational modification, protein turnover, chaperones	449	460	467	453	468	457	457
Inorganic ion transport and metabolism	487	503	512	495	511	500	503
Secondary metabolites biosynthesis, transport and catabolism	152	156	164	155	160	158	157
General function prediction only	702	723	736	710	734	715	721
Function unknown	493	507	517	495	515	497	503
Signal transduction mechanisms	419	433	437	422	438	427	429
Intracellular trafficking, secretion and vesicular transport	110	111	113	110	114	110	110
Defense mechanisms	229	236	238	230	238	231	236
Extracellular structures	1	1	1	1	1	1	1
Mobilome: prophages, transposons	35	35	36	35	36	34	35
Cytoskeleton	2	3	2	2	2	2	3