1.8.1.19	29000	-	1 * 52000 + 1 * 29000,	
1.8.1.19	30686	-	1 * 52598 (alpha-subunit, SudA) + 1 * 30686 (beta-subunit, SudB), calculated from sequence	
1.8.1.19	52000	-	1 * 52000 + 1 * 29000,	
1.8.1.19	52598	-	1 * 52598 (alpha-subunit, SudA) + 1 * 30686 (beta-subunit, SudB), calculated from sequence	
1.8.1.19	90000	-	gel filtration