Figure 1.

(A). Urease gene cluster as found in B. infantis (Sela et al. 2008) [58]. (B). Phylogenetic tree of urease subunit alpha genes expected in the human gut. Nodes of genes found in study labeled green. (C). Genera of origin of the urease gene hits in the metagenomes, retrieved from all urease protein subunit alpha hits surpassing the alignment quality threshold (%). (D). Normalized ratio of reads that aligned with urease proteins for all bacterial species based on infant diet (per 1 million reads).