Table III.

Polypeptide Composition of IFT Complexes A and B

Complex		Hydrodynamic behavior				Subunit polypeptides
						Mass		pI
A		S-value		16.1–16.4 S		p144		5.7–5.8
		Diff. coef.		2.5 × 10−7 cm2/s		p140		6.0
		M w		550 kD		p139		5.9
						p122		5.8–6.0
B		S-value		15–16 S		p172		5.9
		Diff. coef.		1.8 × 10−7 cm2/s		p88		5.9
		M w		710–760 kD		p81		6.1
						p80		6.0
						p74		nd
						p72		nd
						p57/55		4.9/4.8
						p52		5.0
						p46		4.4
						p27		5.2
						p20		4.7