Table 3. Examples of (pseudo)merohedrally twinned structures.

PDB code	Unit-cell parameters (Å, °)	Space group	Twin law	Fraction (%)	Type
1q43	a = b = 95, c = 125, α = β = γ = 90	I4	(−k, −h, −l)	8	M
1eyx	a = b = 180, c = 36, α = β = 90, γ = 120	R3:H	(h, −h − k, −l)	45	M
1upp	a = 155.8, b = 156.2, c = 199.7,α = β = γ = 90	C2221	(h, k, −l)	45	PM
1l2h	a = b = 53.9, c = 77.4, α = β = γ = 90	P43	(−h, k, −l)	37	M