Lynne Hobson

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Elizabeth Baker10
Robert I Richards10
Marie Mangelsdorf8
Grant R. Sutherland8
D L Nelson7
17Robert I. Richards
12J P Fryns
12Lena M. Brueckner
12T Lukusa
12Sonia Dayan

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1997
2016
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Chromosomal fragile site FRA16D and DNA instability in cancer.
It has been proposed that common aphidicolin-inducible fragile sites, in general, predispose to specific chromosomal breakage associated with deletion, amplification, and/or translocation in certain forms of cancer. Although this appears to be the case for the fragile site FRA3B and may be the case for FRA7G, it is not yet clear whether this association is… (More)
Common chromosomal fragile site FRA16D sequence: identification of the FOR gene spanning FRA16D and homozygous deletions and translocation breakpoints in cancer cells.
Fluorescence in situ hybridization of a tile path of DNA subclones has previously enabled the cyto-genetic definition of the minimal DNA sequence which spans the FRA16D common chromosomal fragile site, located at 16q23.2. Homozygous deletion of the FRA16D locus has been reported in adenocarcinomas of stomach, colon, lung and ovary. We have sequenced the 270… (More)
Human Chromosomal Fragile Site FRA16B Is an Amplified AT-Rich Minisatellite Repeat
Fragile sites are nonstaining gaps in chromosomes induced by specific tissue culture conditions. They vary both in population frequency and in the culture conditions required for induction. Folate-sensitive fragile sites are due to expansion of p(CCG)n trinucleotide repeats; however, the relationship between sequence composition and the chemistry of… (More)
FRA10B structure reveals common elements in repeat expansion and chromosomal fragile site genesis.
A common mechanism for chromosomal fragile site genesis is not yet apparent. Folate-sensitive fragile sites are expanded p(CCG)n repeats that arise from longer normal alleles. Distamycin A or bromodeoxyuridine-inducible fragile site FRA16B is an expanded AT-rich approximately 33 bp repeat; however, the relationship between normal and fragile site alleles is… (More)
Common chromosomal fragile site FRA16D mutation in cancer cells.
Neither the molecular basis for common fragile site DNA instability nor the contribution of this form of chromosomal instability to cancer is clearly understood. Fragile site FRA16D (16q23.2) is within regions of frequent loss-of-heterozygosity (LOH) in breast and prostate cancers, is associated with homozygous deletions in various adenocarcinomas and… (More)
Defects in tRNA Anticodon Loop 2'-O-Methylation Are Implicated in Nonsyndromic X-Linked Intellectual Disability due to Mutations in FTSJ1.
tRNA modifications are crucial for efficient and accurate protein synthesis, and modification defects are frequently associated with disease. Yeast trm7Δ mutants grow poorly due to lack of 2'-O-methylated C32 (Cm32 ) and Gm34 on tRNA(Phe) , catalyzed by Trm7-Trm732 and Trm7-Trm734, respectively, which in turn results in loss of wybutosine at G37 . Mutations… (More)
Expanding the molecular basis and phenotypic spectrum of X-linked Joubert syndrome associated with OFD1 mutations.
Using a combination of linkage mapping and massively parallel sequencing of the X-chromosome exome, we identified an 18-bp deletion in exon 8 of the oral-facial-digital syndrome type 1 (OFD1) gene in a family with X-linked Joubert syndrome (JBTS10). The deletion results in an in-frame deletion of six amino acids. New features not noted in the two previously… (More)
A non-coding variant in the 5' UTR of DLG3 attenuates protein translation to cause non-syndromic intellectual disability.
Intellectual disability (ID) is a clinically complex and heterogeneous disorder, which has variable severity and may be associated with additional dysmorphic, metabolic, neuromuscular or psychiatric features. Although many coding variants have been implicated in ID, identification of pathogenic non-coding regulatory variants has only been achieved in a few… (More)
Genetic heterogeneity in familial acute myelogenous leukemia: evidence for a second locus at chromosome 16q21-23.2.
The identification of genes responsible for the rare cases of familial leukemia may afford insight into the mechanism underlying the more common sporadic occurrences. Here we test a single family with 11 relevant meioses transmitting autosomal dominant acute myelogenous leukemia (AML) and myelodysplasia for linkage to three potential candidate loci. In a… (More)
A novel X-linked trichothiodystrophy associated with a nonsense mutation in RNF113A.
BACKGROUND Trichothiodystrophy (TTD) is a group of rare autosomal recessive disorders that variably affect a wide range of organs derived from the neuroectoderm. The key diagnostic feature is sparse, brittle, sulfur deficient hair that has a 'tiger-tail' banding pattern under polarising light microscopy. PATIENTS AND METHODS We describe two male cousins… (More)
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