Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
1981-8-27
pubmed:abstractText
Mice homozygous for the autosomal recessive gene, cartilage matrix deficiency (cmd/cmd), are characterized by disproportionate dwarfism and cleft palate. The collagen and proteoglycan of fetal limb cartilage was examined by biochemical and immunofluorescent techniques. While a normal amount of type II collagen was found, the amount of proteoglycan was reduced as determined by chemical analysis and incorporation of labeled precursors. Analyses of labeled proteoglycans by glycerol density gradient centrifugation under dissociative conditions and by gel filtration showed that the major high molecular weight proteoglycan characteristic of cartilage was absent, but smaller proteoglycans were present in normal amounts. Antibodies directed against proteoglycan core protein failed to stain the cmd/cmd cartilage while antibodies to type II collagen stained the cartilage without hyaluronidase pretreatment. Addition of beta-D-xyloside, an exogenous substrate for chondroitin sulfate synthesis, and direct assay for beta-D-xylosyltransferase activity indicated that cmd/cmd cartilage cells contained normal levels of the enzymes required for chondroitin sulfate synthesis. The data suggest that cmd/cmd is defective in the synthesis of the cartilage proteoglycan core protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
256
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6961-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Absence of proteoglycan core protein in cartilage from the cmd/cmd (cartilage matrix deficiency) mouse.
pubmed:publicationType
Journal Article