Extended Data Table 3.

Primers used for making the LCC deletion mutant

	MapLCC
Data collection
Space group	P213
Cell dimensions
a, b, c (Å)	220.9, 220.9, 220.9
α, β, γ (°)	90, 90, 90
Resolution (Å)	50-3.0 (3.1-3.0)*
Rmerge	9.6 (44.6)
I/σI	10.3 (1.9)
Completeness (%)	91 (72)
Redundancy	3.3 (2.1)
Refinement
Resolution (Å)	50-3.0
No. reflections	64,953
Rwork/Rfree	20.9/26.2
No. atoms
Protein	14,632
Ligand/ion	0
Water	0
B-factors
Protein	66.4
Ligand/ion	–
Water	–
R.m.s deviations
Bond lengths (Å)	0.007
Bond angles (°)	1.4