The PKD1 gene product

We would like to bring to your attention a report that has significant implications for an autosomal dominant polycystic kidney disease study that was reported in the April issue of Nature Medicine. This study described the characterization and localization of an extracellular matrix protein using a...

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Veröffentlicht in:Nature medicine 1995-06, Vol.1 (6), p.493-493
Hauptverfasser: Harris, Peter C, Germino, Gregory, Klinger, Kathy, Landes, Greg, Adelsberg, Janet Van
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container_end_page 493
container_issue 6
container_start_page 493
container_title Nature medicine
container_volume 1
creator Harris, Peter C
Germino, Gregory
Klinger, Kathy
Landes, Greg
Adelsberg, Janet Van
description We would like to bring to your attention a report that has significant implications for an autosomal dominant polycystic kidney disease study that was reported in the April issue of Nature Medicine. This study described the characterization and localization of an extracellular matrix protein using antibodies raised against a decapeptide from the predicted extreme COOH-terminal domain of the PKD1 gene product. The American Polycystic Kidney Disease Consortium has identified an important difference between their sequence and that previously published; a two-base pair insertion results in the replacement of the originally predicted 92 COOH-terminal residues with 12 novel residues. This sequence difference has been found in two cloned genomic templates and one cDNA template and has been confirmed using allele-specific oligonucleotides and PCR products derived from the genomic DNA of nine individuals. The European Polycystic Kidney Disease Consortium has also re-analysed the original sequence and confirmed the presence of the two-base pair insertion. We therefore conclude that there are currently no data supporting the presence of the originally published COOH terminal peptide sequence within the final PKD1 gene product. It is clear, therefore, that the relationship between the PKD1 gene product to the extracellular matrix protein identified with these anti-peptide antibodies is uncertain and should be viewed with caution.
doi_str_mv 10.1038/nm0695-493a
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This study described the characterization and localization of an extracellular matrix protein using antibodies raised against a decapeptide from the predicted extreme COOH-terminal domain of the PKD1 gene product. The American Polycystic Kidney Disease Consortium has identified an important difference between their sequence and that previously published; a two-base pair insertion results in the replacement of the originally predicted 92 COOH-terminal residues with 12 novel residues. This sequence difference has been found in two cloned genomic templates and one cDNA template and has been confirmed using allele-specific oligonucleotides and PCR products derived from the genomic DNA of nine individuals. The European Polycystic Kidney Disease Consortium has also re-analysed the original sequence and confirmed the presence of the two-base pair insertion. We therefore conclude that there are currently no data supporting the presence of the originally published COOH terminal peptide sequence within the final PKD1 gene product. 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This study described the characterization and localization of an extracellular matrix protein using antibodies raised against a decapeptide from the predicted extreme COOH-terminal domain of the PKD1 gene product. The American Polycystic Kidney Disease Consortium has identified an important difference between their sequence and that previously published; a two-base pair insertion results in the replacement of the originally predicted 92 COOH-terminal residues with 12 novel residues. This sequence difference has been found in two cloned genomic templates and one cDNA template and has been confirmed using allele-specific oligonucleotides and PCR products derived from the genomic DNA of nine individuals. The European Polycystic Kidney Disease Consortium has also re-analysed the original sequence and confirmed the presence of the two-base pair insertion. 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subjects Amino Acid Sequence
Biomedicine
Cancer Research
Chromosome Mapping
Cloning, Molecular
DNA, Complementary - genetics
extracellular matrix
Extracellular Matrix Proteins - genetics
Extracellular Matrix Proteins - immunology
gene products
Humans
Infectious Diseases
letters-to-the-editor
man
Metabolic Diseases
Molecular Medicine
Neurosciences
Peptide Fragments - chemical synthesis
Peptide Fragments - chemistry
Peptide Fragments - immunology
PKD1 gene
polycystic kidney
Polycystic kidney disease 1 protein
Polycystic Kidney, Autosomal Dominant - genetics
Proteins - chemistry
Proteins - genetics
Proteins - immunology
Sequence Analysis
TRPP Cation Channels
title The PKD1 gene product
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