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Table 5 Contaminants

From: Denoising PCR-amplified metagenome data

Accession

Reads/Frequency

D GB

D sample

D chim

Source

Type

DADA

AN

Divergent

FR697039

14/4×10−4

0

11

10

Lake Water

Bacterium

Y

Y

EU633742

1/3×10−5

1

9

9

Showerhead

Methylobacter

Y

Y

JF515955

1/3×10−5

1

8

8

Soil

Nitrosomonadaceae

N

Y

Titanium

FJ004768

77/3×10−3

2

39

27

Soil

Bacterium

Y

Y

JF190756

1/4×10−5

1

40

27

Human Skin

Bacterium

Y

Y

JQ462329

2/8×10−5

0

7

5

Human Mouth

Bacterium

Y

N

  1. D GB , D sample and D chim are the Hamming distances to the given GenBank entry, the nearest sample genotype, and the optimal chimera for each putative contaminant denoised sequence. No entries are given for the Artificial data set because no likely contaminants were found in the denoised sequences of either algorithm. The last two columns show which contaminants were present in the denoised sequences of each algorithm (“Y” if found and “N” if not found).