Table 1. Major physiological traits of the Methylophilaceae OTUs as predicted from metagenomic sequencing.

Function/OTU	MxaFI-MDH	XoxF-MDH	Respiratory denitrification	Assimilatory denitrification	EDD/EDA RuMP	PFK/FBA RuMP
OTU_1	+	+	−	+	+	−
OTU_3	+	+	−	+	+	−
OTU_7	−	+	+	+	−	+

Abbreviations: EDD/EDA, Entner–Doudoroff; MDH, methanol dehydrogenase; RuMP, ribulose monophosphate; PFK/FBA, glycolytic variants of ribulose monophosphate cycle.