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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1985-11-20
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pubmed:abstractText |
Human alpha-L-iduronidase from liver was purified about 20 000-fold with a new rapid three-step, five-column procedure which consisted of a Concanavalin-A-Sepharose/Blue-A-Agarose coupled step, a CM-Sepharose/Bio-Gel HT coupled step followed by a cupric-ion-chelating Sepharose 6B step. The behaviour of alpha-L-iduronidase on gel permeation chromatography was dependent upon both pH and ionic strength of the eluting buffer. The formation of species with enzyme activity which behaved as large-molecular-mass aggregates was favoured under conditions of low ionic strength and neutral pH. The amount of high-Mr species diminished as the pH decreased or the ionic strength increased to favour a single active species of Mr 65 000. A specific monoclonal antibody was generated against liver alpha-L-iduronidase. The antibody specifically immunoprecipitated enzyme activity from both crude and purified sources. The subunit Mr of liver alpha-L-iduronidase was estimated to be 65 000 using SDS-PAGE. Monoclonal antibody immunoprecipitation of radiolabelled enzyme was used to provide definitive confirmation of this subunit size.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0014-2956
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
152
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
21-8
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pubmed:dateRevised |
2007-7-23
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pubmed:meshHeading |
pubmed-meshheading:4043081-Antibodies, Monoclonal,
pubmed-meshheading:4043081-Antibody Specificity,
pubmed-meshheading:4043081-Chromatography,
pubmed-meshheading:4043081-Glycoside Hydrolases,
pubmed-meshheading:4043081-Humans,
pubmed-meshheading:4043081-Hydrogen-Ion Concentration,
pubmed-meshheading:4043081-Iduronidase,
pubmed-meshheading:4043081-Liver,
pubmed-meshheading:4043081-Lysosomes,
pubmed-meshheading:4043081-Molecular Weight,
pubmed-meshheading:4043081-Osmolar Concentration,
pubmed-meshheading:4043081-Protein Denaturation,
pubmed-meshheading:4043081-Solubility
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pubmed:year |
1985
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pubmed:articleTitle |
Human alpha-L-iduronidase. 1. Purification, monoclonal antibody production, native and subunit molecular mass.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|