A Restriction Enzyme from Escherichia coli Purification and General Properties

An endonuclease restriction enzyme has been purified from E. coli about 40-fold withDNAse and RNAse recoveries of about 3%. The purification steps included precipitationof the enzyme with ammonium sulphate, and reclaimed it through Sephadex G-100 andDEAE-cellulose chromatography. The purified endonu...

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Main Authors: Mukaram Shikara, Nadia Tariq Barakat, Maysem Modaffer Al-Obaidy
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2009-03-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_29309_4b1b6f4648f4387c4cdf6146dfff1428.pdf
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author Mukaram Shikara
Nadia Tariq Barakat
Maysem Modaffer Al-Obaidy
author_facet Mukaram Shikara
Nadia Tariq Barakat
Maysem Modaffer Al-Obaidy
author_sort Mukaram Shikara
collection DOAJ
description An endonuclease restriction enzyme has been purified from E. coli about 40-fold withDNAse and RNAse recoveries of about 3%. The purification steps included precipitationof the enzyme with ammonium sulphate, and reclaimed it through Sephadex G-100 andDEAE-cellulose chromatography. The purified endonuclease was able to break lambdaDNA into three bands. The enzyme has 5% of carbohydrate moiety which means it is aglycoprotein. Lastly, the comparison with other commercial restriction endonucleasesproves that this enzyme is a restriction enzyme with enzymic activity dependent onMg2+
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spelling doaj.art-6b29c355a6734a9fa696b1949480cea62024-02-04T17:49:12ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582009-03-0127595496110.30684/etj.27.5.929309A Restriction Enzyme from Escherichia coli Purification and General PropertiesMukaram ShikaraNadia Tariq BarakatMaysem Modaffer Al-ObaidyAn endonuclease restriction enzyme has been purified from E. coli about 40-fold withDNAse and RNAse recoveries of about 3%. The purification steps included precipitationof the enzyme with ammonium sulphate, and reclaimed it through Sephadex G-100 andDEAE-cellulose chromatography. The purified endonuclease was able to break lambdaDNA into three bands. The enzyme has 5% of carbohydrate moiety which means it is aglycoprotein. Lastly, the comparison with other commercial restriction endonucleasesproves that this enzyme is a restriction enzyme with enzymic activity dependent onMg2+https://etj.uotechnology.edu.iq/article_29309_4b1b6f4648f4387c4cdf6146dfff1428.pdfrestriction enzymepurificationcoliproperties
spellingShingle Mukaram Shikara
Nadia Tariq Barakat
Maysem Modaffer Al-Obaidy
A Restriction Enzyme from Escherichia coli Purification and General Properties
Engineering and Technology Journal
restriction enzyme
purification
coli
properties
title A Restriction Enzyme from Escherichia coli Purification and General Properties
title_full A Restriction Enzyme from Escherichia coli Purification and General Properties
title_fullStr A Restriction Enzyme from Escherichia coli Purification and General Properties
title_full_unstemmed A Restriction Enzyme from Escherichia coli Purification and General Properties
title_short A Restriction Enzyme from Escherichia coli Purification and General Properties
title_sort restriction enzyme from escherichia coli purification and general properties
topic restriction enzyme
purification
coli
properties
url https://etj.uotechnology.edu.iq/article_29309_4b1b6f4648f4387c4cdf6146dfff1428.pdf
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AT nadiatariqbarakat restrictionenzymefromescherichiacolipurificationandgeneralproperties
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