Two factors affecting the heat stability of xanthine oxidase in extracts of mouse intestine

✍ Scribed by C. J. Arnold; I. E. Lush

• Publisher: Springer
• Year: 1975
• Tongue: English
• Weight: 439 KB
• Volume: 13
• Category: Article
• ISSN: 0006-2928
• DOI: 10.1007/bf00484927

✦ Synopsis

The heat stability at 56 C of xanthine oxidase (Xox) from mouse intestine was found to be affected by two factors: (1) Xox which had been partially digested by trypsin was less heat stable than Zox which was protected fi'om digestion by the presence of soybean trypsin inhibitor and phenylmethylsulfonyl fluoride;

(2) Xox was less heat stable in glass tubes than in polystyrene tubes and siliconized glass tubes resembled poIystyrene tubes in this respect.