2.1.1.20	?	x * 34000, SDS-PAGE	485216	
2.1.1.20	homotetramer	4 * 32500	704524, 706903	
2.1.1.20	tetramer	-	660421	
2.1.1.20	tetramer	4 * 31500, identical subunits, SDS-PAGE	485214	
2.1.1.20	tetramer	4 * 32500, deduced from cDNA, crystal structure	485219	
2.1.1.20	tetramer	crystal structure analysis	674879	
2.1.1.20	tetramer	crystal structure analysis, in the presence of moderate (2-4 M) urea concentrations the tetrameric enzyme dissociates into compact monomers, higher concentrations of urea (7-8 M) promote complete denaturation of enzyme	689908	
2.1.1.20	tetramer	crystallographic studies	674879	
2.1.1.20	trimer or tetramer	3 or 4 * 27000-33000, nonidentical subunits, SDS-PAGE	485212