2.3.1.12	60	-	stable up to	
2.3.1.12	70	-	1 h stable, isolated lipoyl domains	
2.3.1.12	70	-	incubation converts core of the enzyme into an unidentified active molecular form X, loss of 10% enzyme activity after 5 h	
2.3.1.12	78	-	temperatures below result in less than 5% loss in enzyme activity	
2.3.1.12	80	-	partly precipitation above