Penetrance of biallelic SMARCAL1 mutations is associated with environmental and genetic disturbances of gene expression
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus Homo sapiens Drosophila melanogaster
PROVIDER: GSE35554 | GEO | 2012/04/05
SECONDARY ACCESSION(S): PRJNA152669
REPOSITORIES: GEO
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE35551: Penetrance of biallelic SMARCAL1 mutations is associated with environmental and genetic disturbances of gene expression (1) GSE35552: Penetrance of biallelic SMARCAL1 mutations is associated with environmental and genetic disturbances of gene expression (2) GSE35553: Penetrance of biallelic SMARCAL1 mutations is associated with environmental and genetic disturbances of gene expression (3) Refer to individual Series
2012-04-04 | E-GEOD-35554 | biostudies-arrayexpress
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila and mouse models, we show that the proteins encoded by SMARCAL1 orthologs localize to transcriptionally active chromatin and modulate gene expression. We also show that, as found in SIOD patients, deficiency of the SMARCAL1 orthologs alone is insufficient to cause disease in fruit flies and mice, although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD.
| S-EPMC3349428 | biostudies-literature
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD. For analysis of gene expression in primary cultured human dermal fibroblasts, 5.0 μg of total RNA from three biologically independent replicates was extracted from two SIOD (SD8 and SD60) and a control skin fibroblast cell lines, labeled and hybridized to Affymetrix Human Genome U133 Plus 2.0 Arrays.
2012-04-04 | E-GEOD-35551 | biostudies-arrayexpress
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD. For analysis of gene expression in flies, 5.0 ?g of total RNA from three biologically independent replicates was extracted from 1) yw, 2) Marcal1del/del, 3) RpII2154/FM7, and 4) RpII2154/FM7;Marcal1del/del ovaries at 20°C and from yw and Marcal1del/del at 25°C, labeled and hybridized to Affymetrix Drosophila Genome 2.0 arrays.
2012-04-04 | E-GEOD-35552 | biostudies-arrayexpress
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD. The RNA sequencing libraries were constructed from the liver RNA of 3-4-month Smarcal1del/del and wt female mice (n=3/group) at 20M-BM-0C and after 1 hour at 39.5M-BM-0C. These libraries were sequenced using the whole transcriptome shotgun sequencing procedure.
2012-04-04 | E-GEOD-35553 | biostudies-arrayexpress
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD.
2012-04-05 | GSE35553 | GEO
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD.
2012-04-05 | GSE35552 | GEO
Project description:Biallelic mutations of the DNA annealing helicase SMARCAL1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin, subfamily a-like 1) cause Schimke immuno-osseous dysplasia (SIOD, MIM 242900), an incompletely penetrant autosomal recessive disorder. Using human, Drosophila, and mouse models, we show that the proteins encoded by SMARCAL1 orthologues localize to transcriptionally active chromatin and modulate gene expression. We also show that similar to SIOD patients, deficiency of the SMARCAL1 orthologues alone is insufficient to cause disease in fruit flies and mice although such deficiency causes modest diffuse alterations in gene expression. Rather, disease manifests when SMARCAL1 deficiency interacts with genetic and environmental factors that further alter gene expression. We conclude that the SMARCAL1 annealing helicase buffers fluctuations in gene expression and that alterations in gene expression contribute to the penetrance of SIOD.
2012-04-05 | GSE35551 | GEO
Project description:Telomeres are repetitive hexameric sequences located at the end of linear chromosomes. They adopt a lariat-like structure, the T-loop, to prevent them from being recognized as DNA breaks by the DNA repair machinery. RTEL1 is a DNA helicase required for proper telomere replication and stability. In particular, it has been postulated that RTEL1 is involved in the opening of the T-loop during telomere replication to avoid sudden telomere deletion and telomere circle (T-circle) formation. In humans, biallelic RTEL1 mutations cause Hoyeraal-Hreidarsson syndrome (HH), a rare and severe telomere biology disorder characterized by intrauterine growth retardation, bone marrow failure, microcephaly and/or cerebellar hypoplasia, and immunodeficiency. To date, 18 different RTEL1 mutations have been described in 19 cases of HH with short telomeres. The impaired T-loop resolution has been proposed to be a major cause of telomere shortening in RTEL1 deficiency. However, the biological and clinical consequences of this disorder remain incompletely documented. Here, we describe 4 new patients harboring biallelic RTEL1 mutations, including 2 novel missense mutations located in the C-terminal end of RTEL1 (p.Cys1268Arg and p.Val1294Phe). Clinical characteristics from these 4 patients were collected as those from 4 other RTEL1-deficient patients previously reported. In addition, we assessed whether T-circles, the product of improper T-loop resolution, were detected in our RTEL1-deficient patients. Overall, our study broadens and refines the clinical and biological spectrum of human RTEL1 deficiency.
| S-EPMC5744058 | biostudies-literature
Project description:This SuperSeries is composed of the SubSeries listed below.
2021-09-29 | GSE154408 | GEO