TABLE 2.

Summary of MALLS and SAXS analyses of the SNX-PXB proteins

	SNX21 PXB/TPR	SNX20Δ50	SNX21Δ93
Structural parametersa
I(0) (cm−1) (Guinier/P(r))	0.031	0.050	0.041
Rg (Å) (Guinier)	21.78 ± 0.28	24.37 ± 0.24	25.78 ± 0.08
Rg (Å) (P(r))	21.57 ± 0.25	24.41 ± 0.16	25.34 ± 0.07
Dmax (Å)	67.0 ± 2.0	74 ± 2.0	84 ± 2.0
Molecular mass (Mr) determination
Sequence (kDa)	29.6 (dimer)	31.0	40.8a
MALLS	29.3	28.9	40.6
SAXS	30.6	33.2	42.1
Ab initio analysis
χ (GASBOR)	0.36	0.38	0.70
Rigid-body modeling/validation
χ2	0.435	0.794	1.21
	CRYSOL	BUNCH	SASREF

^a Including a 10-kDa ubiquitin tag.