Table 2. Structural comparison of Mtr _Re with the eight most similar enzyme classes from the DALI search.

Protein	Z-score	R.m.s.d. (Å)	Residues	Aligned residues	Sequence identity (%)	PDB code
MerA	45.5	1.9	452	441	30	5x1y
DLD	44.5	2.0	455	444	27	1ebd
GR	43.3	1.9	450	434	29	6b4o
GAR	42.9	2.2	451	436	31	2rab
TryR	41.1	2.0	481	440	26	2tpr
LpdA	40.7	2.8	459	436	24	1xdi
TrxR (high M r)	40.5	2.1	482	437	26	3dgz
CoADR	33.8	2.7	444	401	21	5l1n