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Interstitial deletion 13q33 resulting from maternal insertional translocation

Interstitial deletion 13q33 resulting from maternal insertional translocation A 32-month-old female with a unique interstitial deletion of 13q is presented, including cytogenetic and gene marker studies. The deleted 13 in the patient is a result of malsegre-gation of a maternal insertional translocation involving chromosomes 7 and 13, 46, XX, ins (7;13)(q22;q32q34). The demonstration of two esterase D alleles in this patient excludes band 13q33 as the site of the ESD locus, previously assigned to the distal long arm of chromosome 13. The BUdR dye studies reveal that the replicative pattern for 13q31 and 13q21 is not altered by deletion of 13q33 and permit precise delineation of the breakpoints of the rearrangement. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Genetics Wiley

Interstitial deletion 13q33 resulting from maternal insertional translocation

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References (23)

Publisher
Wiley
Copyright
1979 Blackwell Munksgaard
ISSN
0009-9163
eISSN
1399-0004
DOI
10.1111/j.1399-0004.1979.tb01013.x
Publisher site
See Article on Publisher Site

Abstract

A 32-month-old female with a unique interstitial deletion of 13q is presented, including cytogenetic and gene marker studies. The deleted 13 in the patient is a result of malsegre-gation of a maternal insertional translocation involving chromosomes 7 and 13, 46, XX, ins (7;13)(q22;q32q34). The demonstration of two esterase D alleles in this patient excludes band 13q33 as the site of the ESD locus, previously assigned to the distal long arm of chromosome 13. The BUdR dye studies reveal that the replicative pattern for 13q31 and 13q21 is not altered by deletion of 13q33 and permit precise delineation of the breakpoints of the rearrangement.

Journal

Clinical GeneticsWiley

Published: Nov 1, 1979

Keywords: Chromosome 13; developmental delay; esterase D; insertional translocation; interstitial deletion

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