Abstract:
:NSDHL, for NAD(P)H steroid dehydrogenase-like, encodes a sterol dehydrogenase or decarboxylase involved in the sequential removal of two C-4 methyl groups in post-squalene cholesterol biosynthesis. Mutations in this gene are associated with human CHILD syndrome (congenital hemidysplasia with ichthyosiform nevus and limb defects), an X-linked, male lethal disorder, as well as the mouse mutations bare patches and striated. In the present study, we have investigated the subcellular localization of tagged proteins encoded by wild-type and selected mutant murine Nsdhl alleles using confocal microscopy. In addition to an ER localization commonly found for enzymes of post-squalene cholesterol biosynthesis, we have identified a novel association of NSDHL with lipid droplets, which are endoplasmic reticulum (ER)-derived cytoplasmic structures that contain a neutral lipid core. We further demonstrate that trafficking through the Golgi is necessary for ER membrane localization of the protein and propose a model for the association of NSDHL with lipid droplets. The dual localization of NSDHL within ER membranes and on the surface of lipid droplets may provide another mechanism for regulation of the levels and sites of accumulation of intracellular cholesterol.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Caldas H,Herman GEdoi
10.1093/hmg/ddg321subject
Has Abstractpub_date
2003-11-15 00:00:00pages
2981-91issue
22eissn
0964-6906issn
1460-2083pii
ddg321journal_volume
12pub_type
杂志文章abstract::Fragile X syndrome (FXS), a common inherited form of intellectual disability with learning deficits, results from a loss of fragile X mental retardation protein (FMRP). Despite extensive research, treatment options for FXS remain limited. Since FMRP is known to play an important role in adult hippocampal neurogenesis ...
journal_title:Human molecular genetics
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abstract::The human POLG gene encodes the catalytic subunit of mitochondrial DNA polymerase gamma (pol gamma). Mutations in pol gamma are associated with a spectrum of disease phenotypes including autosomal dominant and recessive forms of progressive external ophthalmoplegia, spino-cerebellar ataxia and epilepsy, and Alpers-Hut...
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journal_title:Human molecular genetics
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abstract::The AFF (AF4/FMR2) family of genes includes four members: AFF1/AF4, AFF2/FMR2, AFF3/LAF4 and AFF4/AF5q31. AFF2/FMR2 is silenced in FRAXE intellectual disability, while the other three members have been reported to form fusion genes as a consequence of chromosome translocations with the myeloid/lymphoid or mixed lineag...
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journal_title:Human molecular genetics
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pub_type: 杂志文章,meta分析
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journal_title:Human molecular genetics
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abstract::Several known or putative glycosyltransferases are required for the synthesis of laminin-binding glycans on alpha-dystroglycan (αDG), including POMT1, POMT2, POMGnT1, LARGE, Fukutin, FKRP, ISPD and GTDC2. Mutations in these glycosyltransferase genes result in defective αDG glycosylation and reduced ligand binding by α...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt021
更新日期:2013-05-01 00:00:00
abstract::Mitochondrial DNA (mtDNA) depletion syndrome (MDS), an autosomal recessive condition, is characterized by variable organ involvement with decreased mtDNA copy number and activities of respiratory chain enzymes in affected tissues. MtDNA depletion has been associated with mutations in nine autosomal genes, including th...
journal_title:Human molecular genetics
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更新日期:2008-08-15 00:00:00
abstract::Huntington's disease is a dominantly inherited neurodegenerative disease caused by the expansion of a CAG repeat in the HTT gene. In addition to the length of the CAG expansion, factors such as genetic background have been shown to contribute to the age at onset of neurological symptoms. A central challenge in underst...
journal_title:Human molecular genetics
pub_type: 杂志文章
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更新日期:2017-03-01 00:00:00
abstract::The role of BRCA1 in breast and ovarian tumor suppression has been primarily ascribed to the maintenance of genome integrity. BRCA1 interacts with components of the non-homologous end-joining pathway previously shown to play a role in telomere maintenance in yeast. Here, we provide evidence that links Brca1 with telom...
journal_title:Human molecular genetics
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doi:10.1093/hmg/ddl002
更新日期:2006-03-15 00:00:00
abstract::The group of dominant non-dystrophic myotonias, comprising disorders characterized by clinically similar forms of myogenic muscle stiffness, is genetically inhomogeneous. Dominant myotonia congenita (Thomsen's disease) is linked to CLCN1, the gene encoding the major muscle chloride channel, localized on chromosome 7q3...
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pub_type: 杂志文章
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更新日期:1995-08-01 00:00:00
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journal_title:Human molecular genetics
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更新日期:2016-06-15 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt365
更新日期:2013-12-20 00:00:00
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abstract::Proper splicing is often crucial for gene functioning and its disruption may be strongly deleterious. Nevertheless, even the essential for splicing canonical dinucleotides of the splice sites are often polymorphic. Here, we use data from The 1000 Genomes Project to study single-nucleotide polymorphisms (SNPs) in the c...
journal_title:Human molecular genetics
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abstract::Rett syndrome (RTT) is an X-linked dominant disabling neurodevelopmental disorder caused by loss of function mutations in the MECP2 gene, located at Xq28, which encodes a multifunctional protein. MECP2 expression is regulated in a developmental stage and cell-type-specific manner. The need for tightly controlled MeCP2...
journal_title:Human molecular genetics
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journal_title:Human molecular genetics
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