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Papaya glutamine cyclase, a plant enzyme highly resistant to proteolysis, adopts an all-β conformation

✍ Scribed by Keith A. Oberg; Jean-Marie Ruysschaert; Mohamed Azarkan; Nicole Smolders; Samira Zerhouni; René Wintjens; Amina Amrani; Yvan Looze


Book ID
114429479
Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
267 KB
Volume
258
Category
Article
ISSN
1432-1327

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Papaya glutamine cyclase, a plant enzyme
✍ Keith A. Oberg; Jean-Marie Ruysschaert; Mohamed Azarkan; Nicole Smolders; Samira 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 267 KB

Glutamine cyclases catalyse the conversion of L-glutaminyl-peptides into 5-oxoprolyl-peptides with the concomitant liberation of ammonia. We report here biophysical characterisation of the glutamine cyclase present in the laticiferous cells of the plant Carica papaya. After purification to near homo