|
type |
Journal Article |
authors |
Rabinkov, A.; Wilchek, M.; Mirelman, D. |
title |
Alliinase (alliin lyase) from garlic (Alliium sativum) is glycosylated at ASN146 and forms a complex with a garlic mannose-specific lectin |
journal |
Glycoconj J |
Activity |
4.4.1.4 |
Family |
4.4.1.4 |
ui |
AalgAsg |
year |
(1995) |
volume |
12 |
number |
5 |
pages |
690-8 |
| |
keywords |
Amino Acid Sequence |
abstract |
Alliinase (EC 4.4.1.4) catalyses the production of allicin (thio-2-propene-1-sulfinic acid S-allyl ester), a biologically active compound which is also responsible for the characteristic smell of garlic. It was demonstrated that alliinase which contains 5.5-6% of neutral sugars, gives clear PAS-staining, binds to Con A and can form a complex with garlic mannose-specific lectin (ASA). Evidence that the formation of such a complex is mediated by the interaction of the carbohydrate of the glycoprotein enzyme with the lectin was obtained from a radioligand assay which demonstrated the binding of alliinase to ASA and competitive inhibition of this binding by methyl alpha-D-mannoside. ASA I was shown as the lectin mainly present in the complex with alliinase. The results of this study also demonstrate that alliinase is glycosylated at Asn146 in the sequence Asn146-Met147-Thr148. |
last changed |
2008/04/10 11:05 |
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