Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-5-23
pubmed:abstractText
Hereditary multiple exostoses (EXT) is an autosomal dominant disorder of enchondral bone formation characterized by multiple bony outgrowths (exostoses), with progression to osteosarcoma in a minority of cases. The exclusive involvement of skeletal abnormalities distinguishes EXT from the clinically more complex Langer-Giedion syndrome (LGS), which is associated with deletions at chromosome 8q24. Previously, linkage analysis has revealed a locus for EXT in the LGS region on chromosome 8q24. However, locus heterogeneity was apparent with 30% of the families being unlinked to 8q24. We report on two large pedigrees segregating EXT in which linkage to the LGS region was excluded. To localize the EXT gene(s) in these families we performed a genome search including 254 microsatellite markers dispersed over all autosomes and the X chromosome. In both families evidence was obtained for linkage to markers from the proximal short and long arms of chromosome 11. Two-point analysis gave the highest lod score for D11S554 (Zmax = 7.148 at theta = 0.03). Multipoint analysis indicated a map position for the EXT gene between D11S905 and D11S916, with a peak multipoint lod score of 8.10 at 6 cM from D11S935. The assignment of a second locus for EXT to the pericentromeric region of chromosome 11 implicates an area that is particularly rich in genes responsible for developmental abnormalities and neoplasia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0964-6906
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
167-71
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Assignment of a second locus for multiple exostoses to the pericentromeric region of chromosome 11.
pubmed:affiliation
Department of Clinical Genetics, Erasmus University, Rotterdam, The Netherlands.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't