Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-5-13
pubmed:abstractText
We used whole-exome sequencing to study three individuals with a distinct condition characterized by short stature, chondrodysplasia with brachydactyly, congenital joint dislocations, cleft palate, and facial dysmorphism. Affected individuals carried homozygous missense mutations in IMPAD1, the gene coding for gPAPP, a Golgi-resident nucleotide phosphatase that hydrolyzes phosphoadenosine phosphate (PAP), the byproduct of sulfotransferase reactions, to AMP. The mutations affected residues in or adjacent to the phosphatase active site and are predicted to impair enzyme activity. A fourth unrelated patient was subsequently found to be homozygous for a premature termination codon in IMPAD1. Impad1 inactivation in mice has previously been shown to produce chondrodysplasia with abnormal joint formation and impaired proteoglycan sulfation. The human chondrodysplasia associated with gPAPP deficiency joins a growing number of skeletoarticular conditions associated with defective synthesis of sulfated proteoglycans, highlighting the importance of proteoglycans in the development of skeletal elements and joints.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1537-6605
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 The American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
13
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
608-15
pubmed:dateRevised
2011-11-14
pubmed:meshHeading
pubmed-meshheading:21549340-Amino Acid Sequence, pubmed-meshheading:21549340-Bone Diseases, Developmental, pubmed-meshheading:21549340-Female, pubmed-meshheading:21549340-Golgi Apparatus, pubmed-meshheading:21549340-Homozygote, pubmed-meshheading:21549340-Humans, pubmed-meshheading:21549340-Infant, pubmed-meshheading:21549340-Infant, Newborn, pubmed-meshheading:21549340-Joint Diseases, pubmed-meshheading:21549340-Limb Deformities, Congenital, pubmed-meshheading:21549340-Male, pubmed-meshheading:21549340-Molecular Sequence Data, pubmed-meshheading:21549340-Mutation, pubmed-meshheading:21549340-Nucleotides, pubmed-meshheading:21549340-Phenotype, pubmed-meshheading:21549340-Phosphoric Monoester Hydrolases, pubmed-meshheading:21549340-Protein Structure, Quaternary, pubmed-meshheading:21549340-Proteoglycans, pubmed-meshheading:21549340-Sulfotransferases, pubmed-meshheading:21549340-Young Adult
pubmed:year
2011
pubmed:articleTitle
Chondrodysplasia and abnormal joint development associated with mutations in IMPAD1, encoding the Golgi-resident nucleotide phosphatase, gPAPP.
pubmed:affiliation
Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences and Institute for Genetic and Metabolic Disorders, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't