Linked Life Data

2592354

Source:http://linkedlifedata.com/resource/pubmed/id/2592354

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
35
pubmed:dateCreated
1990-1-19
pubmed:abstractText
We have identified the genetic defect that leads to a deficiency of apoC-II in the proband from the Paris kindred. Analysis of the apoC-IIParis DNA by Southern blot hybridization revealed no major gene rearrangements, but sequencing of polymerase chain reaction-amplified apoC-IIParis DNA revealed an A to G transition that changed the initiation AUG (methionine) codon to GUG (valine). Potential initiation of translation at the closest inframe methionine codon eliminates the entire signal peptide and the first 8 amino-terminal residues of apoC-II which would prevent apoC-II secretion into plasma. In agreement with this, no apoC-II was detected in the patient's plasma by radioimmunoassay or by two-dimensional gel electrophoresis and immunoblotting. Direct sequencing of amplified patient DNA from 12 different polymerase chain reaction samples demonstrated the presence of the A to G substitution in all, indicating that the proband is a homozygote for the defect. We propose that in the apoC-IIParis gene, a mutation in the initiation methionine codon prevents the normal initiation of apolipoprotein synthesis and leads to a deficiency of apoC-II. This initiation methionine mutation represents a new type of molecular defect that can result in Type I hyperlipoproteinemia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
264
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
20839-42
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
An initiation codon mutation in the apoC-II gene (apoC-II Paris) of a patient with a deficiency of apolipoprotein C-II.
pubmed:affiliation
Molecular Disease Branch, National Heart, Lung, and Blood Institute, Bethesda, Maryland 20892.
pubmed:publicationType
Journal Article, Case Reports