3.4.13.20	13000	-	alpha4beta4, 2 * 13000 + 2 * 27000, SDS-PAGE	708466	
3.4.13.20	13737	-	x * 13737 + x * 26564, electrospray mass spectrometry	707418	
3.4.13.20	15000	-	x * 15000 + x * 30000, SDS-PAGE	707418	
3.4.13.20	26564	-	x * 13737 + x * 26564, electrospray mass spectrometry	707418	
3.4.13.20	27000	-	alpha4beta4, 2 * 13000 + 2 * 27000, SDS-PAGE	708466	
3.4.13.20	30000	-	x * 15000 + x * 30000, SDS-PAGE	707418	
3.4.13.20	52800	-	2 * 82000, SDS-PAGE, 2 * 63700, MALDI-TOF, 2 * 52800, calculated	683621	
3.4.13.20	63700	-	2 * 82000, SDS-PAGE, 2 * 63700, MALDI-TOF, 2 * 52800, calculated	683621	
3.4.13.20	65000	-	SDS-PAGE, non-reducing conditions	707087	
3.4.13.20	75000	-	2 * 75000, subunits are connected by one or more disulfide bonds, SDS-PAGE	647116