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...
Hlavní autoři: | , , , , |
---|---|
Další autoři: | |
Médium: | Journal article |
Jazyk: | English |
Vydáno: |
Elsevier
1996
|
Témata: |
_version_ | 1826300760389844992 |
---|---|
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> |
first_indexed | 2024-03-07T05:22:04Z |
format | Journal article |
id | oxford-uuid:df40f6c6-9d46-4e7e-823c-a3c1c44d8ef6 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T05:22:04Z |
publishDate | 1996 |
publisher | Elsevier |
record_format | dspace |
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 |
work_keys_str_mv | AT leem thecterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT zhangz thecterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT mackinnonc thecterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT baldwinj thecterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT crouchn thecterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT leem cterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT zhangz cterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT mackinnonc cterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT baldwinj cterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity AT crouchn cterminalofrat4hydroxyphenylpyruvatedioxygenaseisindispensableforenzymeactivity |