rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
2000-6-2
|
pubmed:abstractText |
Hereditary hyperferritinaemia-cataract syndrome is an autosomal dominant disorder characterized by a constitutively increased synthesis of L-ferritin in the absence of iron overload. The disorder is associated with point mutations in the iron-responsive element (IRE) of L-ferritin mRNA. We report a new mutation, G51C, identified in two members of a Canadian family, presenting a moderate increase in serum ferritin and a clinically silent bilateral cataract. Gel retardation assays showed that the binding of the mutated IRE to iron-regulatory proteins (IRPs) was reduced compared with the wild type. Structural modelling predicted that the G51C induces a rearrangement of base pairing at the lateral bulge of the IRE structure which is likely to modify IRE conformation.
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0007-1048
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
108
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
480-2
|
pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10759702-Adolescent,
pubmed-meshheading:10759702-Adult,
pubmed-meshheading:10759702-Anemia,
pubmed-meshheading:10759702-Cataract,
pubmed-meshheading:10759702-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:10759702-Female,
pubmed-meshheading:10759702-Ferritins,
pubmed-meshheading:10759702-Humans,
pubmed-meshheading:10759702-Iron-Regulatory Proteins,
pubmed-meshheading:10759702-Iron-Sulfur Proteins,
pubmed-meshheading:10759702-Male,
pubmed-meshheading:10759702-Middle Aged,
pubmed-meshheading:10759702-Point Mutation,
pubmed-meshheading:10759702-RNA, Messenger,
pubmed-meshheading:10759702-RNA-Binding Proteins,
pubmed-meshheading:10759702-Sequence Analysis, DNA,
pubmed-meshheading:10759702-Syndrome
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pubmed:year |
2000
|
pubmed:articleTitle |
A new mutation (G51C) in the iron-responsive element (IRE) of L-ferritin associated with hyperferritinaemia-cataract syndrome decreases the binding affinity of the mutated IRE for iron-regulatory proteins.
|
pubmed:affiliation |
Dipartimento di Scienze Cliniche e Biologiche, University of Turin, Italy. Camaschella@ope.net
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pubmed:publicationType |
Journal Article,
Case Reports,
Research Support, Non-U.S. Gov't
|