Table 3.

Parameters derived from SVD–EFA SEC–SAXS analysis of C29S

Sample	Guinier		GNOM			Pxb	Mass (kDa)
	qRg	Rga	Rg	Dmax	T.E.		By Qrc	By Porodd
		Å	Å	Å
No Phe	0.35 − 1.26	41.4 ± 0.6	41.0	135	0.85	3.9	191	207
1 mm Phe	0.48 − 1.26	40.5 ± 5.2	41.2	131	0.93	4.0	218	234

^a Errors reported reflect the uncertainty in the value for R_g determined using classical Guinier fitting.

^b P_x is Porod exponent. Values near ∼4 indicate compactness, whereas lower values between 2 and 3 indicate significant lack of compactness and increased volumes (28). These values were determined using the program ScÅtter (https://bl1231.als.lbl.gov/scatter/).

^c Mass determinations using the Q_r invariant (26) were determined using the program RAW.

^d Mass determinations using the Porod volume (27) were determined using the program RAW.