Linkage data for Marfan syndrome and markers on chromosomes 1 and 11.

Open Access

1 February 1990

journal article
research article
Published by BMJ in Journal of Medical Genetics

Vol. 27 (2) , 82-85
https://doi.org/10.1136/jmg.27.2.82

Abstract

Six large families with classical Marfan syndrome were studied using markers on chromosomes 1 and 11. Two of three families tested showed negative scores using D1S7 but a third family gave a positive score (0.92) at theta = 0.1. The other chromosome 1 markers typed (MUCI, NGFB, D1S8) excluded close linkage. Negative lod scores with two chromosome 11q22 markers (D11S84, D11S148) excluded at least 20 cM in this area (Z = less than -2), which was chosen for study as two enzymes responsible for collagen degradation (collagenase and stromelysin) are localised to this region.

Keywords

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