Table 1.

Summary of R_g and D_max of α-Catenin in Solution and in Complex to F-actin

	Rg (Å)	Dmax (Å)
SEC-SAXS monomer	43.7 ± 1.1	147
SEC-SAXS dimer fraction	58.8 ± 1.6	205
In complex with F-action from contrast-matching SANS in 40% D2O	99.7 ± 2.1	350
Monomer crystal structure	35.6a	120
Dimer crystal structure	42.3a	150

^aCalculated from crystal structure coordinates (PDB: 4IGG) after the missing disordered regions were reconstructed by homolog modeling; see Materials and Methods.