TABLE 1.

Comparison of structural deviations across the permuted BMC family

–	PduU	Hex1	Hex2	Screw1	Screw2	EutS
PduU	–	0.5 Å	0.7 Å	3.5 Å	2.8 Å	15.8 Å
Hex1	1.6°	–	0.2 Å	3.5 Å	2.7 Å	15.6 Å
Hex2	1.7°	0.6°	–	3.4 Å	2.7 Å	15.4 Å
Screw1	14.4°	16.5°	16.7°	–	0.8 Å	17.1 Å
Screw2	11.7°	13.6°	13.9°	2.9°	–	17.1 Å
EutS	42.0°	40.4°	40.4°	55.9°	52.9°	–

Note: RMSD values (upper right) shown are based on adjacent AB monomers for four hexameric CutR polymorphs, along with PduU and EutS. The values describe backbone deviations in corresponding B subunits after superimposing A subunits. The rotation angle required to align the B monomers for any given pair of adjacent monomers is reported in the bottom left.