# Table S1. Number of metaproteins, PSI-Blast hits and enriched ontologies per analyzed taxon
Taxon,Metaproteome,PSI-Blast hits,Enriched Ontologies
Escherichia,63664,5283,431
Listeria,5557,4000,514
Actinomyces,2007,3173,520
Eubacterium,11343,4602,455
Leuconostoc,1847,2660,522
Bacillus,13426,5061,520
Catenibacterium,2977,2908,506
Propionibacterium,4824,3727,545
Erysipelotrichaceae,19863,4501,428
Veillonella,1861,2796,509
Arcobacter,964,1943,336
Coprococcus,15091,4978,412
Megamonas,2529,2896,560
Blautia,7038,3868,456
Tannerella,3210,3688,475
Lactobacillus,41120,5509,384
Dialister,2155,2953,536
Campylobacter,5302,3345,483
Enterobacter,4618,3566,651
Clostridium,51228,6916,364
Pseudomonas,6049,4320,624
Weissella,1952,2701,532
Paenibacillus,13434,5151,466
Cedecea,4805,3751,640
Fusobacterium,33340,6148,399
Dysgonomonas,7573,4101,473
Parvimonas,1678,2433,464
Edwardsiella,3964,3367,641
Enterobacteriaceae,4086,4069,551
Intestinibacter,2787,3561,466
Flavonifractor,4278,3298,499
Prevotella,11514,4374,498
Streptomyces,15001,5757,506
Parasutterella,2751,2882,581
Corynebacterium,4774,3938,567
Odoribacter,3103,3992,451
Bifidobacterium,22912,4720,334
Dorea,9747,3747,488
Roseburia,9056,4061,436
Butyrivibrio,2529,2838,477
Succinatimonas,2169,2692,581
Turicibacter,4198,3551,489
Bacteroides,126434,7259,305
Ruminiclostridium,10510,4212,421
Lachnospiraceae,70354,6822,319
Coprobacillus,9590,3996,492
Dermabacter,2133,3103,554
Eggerthella,4549,3595,495
Streptococcus,9332,3977,582
Anaerostipes,9100,4255,431
Phascolarctobacterium,2150,2648,563
Paenisporosarcina,3449,3766,539
Collinsella,8825,3786,446
Oxalobacter,2260,3078,527
Desulfitobacterium,5407,3859,477
Desulfovibrio,8181,4042,438
Anaerococcus,2069,2858,448
Parabacteroides,8759,4105,470
Ruminococcus,17029,4733,410
Synergistes,2960,3150,491
Sutterella,9085,3621,499
Paraprevotella,7377,3698,478
Klebsiella,18217,4403,578
Peptoclostridium,9608,4122,539
Helicobacter,53242,4097,345
Ruminococcaceae,2994,3278,490
Proteus,8620,4010,567
Slackia,1799,2939,522
Bilophila,7355,3788,514
Faecalibacterium,10158,3684,420
Alistipes,5068,4025,486
Anaerofustis,2331,3154,425
Methanobrevibacter,2793,2898,566
Enterococcus,25074,4677,471
Erysipelatoclostridium,5627,3555,451
Butyricicoccus,3112,3177,514
Yokenella,4710,3646,661
Ralstonia,5732,4101,596
Pediococcus,1884,2937,553
Marvinbryantia,4896,3385,414
Pseudoflavonifractor,4829,3510,443
Staphylococcus,2286,3231,597
Subdoligranulum,7457,3685,468
Neisseria,3003,3285,513
Acidaminococcus,2909,2652,567
Holdemania,4223,3292,466
Mitsuokella,2558,2983,552
Barnesiella,2813,3380,517
Tyzzerella,4239,3102,498
Citrobacter,13237,4179,558
Providencia,17270,4572,505
Anaerobaculum,2500,2679,514