The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity

<p>We have cloned and overexpressed rat 4-hydroxyphenylpyruvate dioxygenase (4HPPD) in <em>Escherichia coli</em>. The soluble, active recombinant enzyme was shown to contain both 4HPPD and α-ketoisocaproate dioxygenase (αKICD) activity. However, upon truncation of the 14 amino acid...

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Hlavní autoři: Lee, M, Zhang, Z, MacKinnon, C, Baldwin, J, Crouch, N
Další autoři: Federation of European Biochemical Societies
Médium: Journal article
Jazyk:English
Vydáno: Elsevier 1996
Témata:
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author Lee, M
Zhang, Z
MacKinnon, C
Baldwin, J
Crouch, N
author2 Federation of European Biochemical Societies
author_facet Federation of European Biochemical Societies
Lee, M
Zhang, Z
MacKinnon, C
Baldwin, J
Crouch, N
author_sort Lee, M
collection OXFORD
description <p>We have cloned and overexpressed rat 4-hydroxyphenylpyruvate dioxygenase (4HPPD) in <em>Escherichia coli</em>. The soluble, active recombinant enzyme was shown to contain both 4HPPD and α-ketoisocaproate dioxygenase (αKICD) activity. However, upon truncation of the 14 amino acids at the C-terminus by site-directed mutagenesis, the resulting mutant enzyme (rat F antigen) exhibited complete loss of 4HPPD and αKICD activities. This finding suggests that the C-terminal extension domain plays an essential role in the catalytic activity of the enzyme.</p>
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spelling oxford-uuid:df40f6c6-9d46-4e7e-823c-a3c1c44d8ef62022-03-27T09:38:09ZThe C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:df40f6c6-9d46-4e7e-823c-a3c1c44d8ef6BiochemistryEnglishOxford University Research Archive - ValetElsevier1996Lee, MZhang, ZMacKinnon, CBaldwin, JCrouch, NFederation of European Biochemical Societies<p>We have cloned and overexpressed rat 4-hydroxyphenylpyruvate dioxygenase (4HPPD) in <em>Escherichia coli</em>. The soluble, active recombinant enzyme was shown to contain both 4HPPD and α-ketoisocaproate dioxygenase (αKICD) activity. However, upon truncation of the 14 amino acids at the C-terminus by site-directed mutagenesis, the resulting mutant enzyme (rat F antigen) exhibited complete loss of 4HPPD and αKICD activities. This finding suggests that the C-terminal extension domain plays an essential role in the catalytic activity of the enzyme.</p>
spellingShingle Biochemistry
Lee, M
Zhang, Z
MacKinnon, C
Baldwin, J
Crouch, N
The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title_full The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title_fullStr The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title_full_unstemmed The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title_short The C-terminal of rat 4-hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
title_sort c terminal of rat 4 hydroxyphenylpyruvate dioxygenase is indispensable for enzyme activity
topic Biochemistry
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