2007
DOI: 10.1136/jmg.2006.046425
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Exon deletions of SPG4 are a frequent cause of hereditary spastic paraplegia

Abstract: Exon deletions in SPG4 are as frequent as point mutations, and SPG4 is responsible for 40% of AD-HSP.

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Cited by 106 publications
(112 citation statements)
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“…Mutations in the ATL1 and REEP1 gene had previously been excluded by direct sequencing and multiplex ligationdependent probe amplification (MLPA) at the following frequencies: SPG3A sequencing in 55% of cases, SPG3A MLPA in 85% and SPG31 (sequencing and MLPA) in 84% of cases. 7,9,[12][13][14] The HSP phenotype was pure in 125 (57%) and complicated in 95 (43%) patients. Informed consent was obtained in all cases.…”
Section: Patients and Methods Patientsmentioning
confidence: 99%
See 1 more Smart Citation
“…Mutations in the ATL1 and REEP1 gene had previously been excluded by direct sequencing and multiplex ligationdependent probe amplification (MLPA) at the following frequencies: SPG3A sequencing in 55% of cases, SPG3A MLPA in 85% and SPG31 (sequencing and MLPA) in 84% of cases. 7,9,[12][13][14] The HSP phenotype was pure in 125 (57%) and complicated in 95 (43%) patients. Informed consent was obtained in all cases.…”
Section: Patients and Methods Patientsmentioning
confidence: 99%
“…17 This mutational class is frequent (B20%) in SPG4 and is also relevant for SPG31. 7,14,19 Both forms are associated with pure ADHSP. To assess quantitative changes in SLC33A1 copy number, MLPA was used but no rearrangements were identified.…”
Section: Methodsmentioning
confidence: 99%
“…(11)(12)(13)(14) In our study, we detected a novel 14-bp heterozygous deletion (c.1630-1643delTACTCAGGAAGTGA) in exon 15 of the SPAST gene, which led to a frameshift mutation with a premature stop codon.…”
Section: Resultsmentioning
confidence: 92%
“…(9) To date, more than 257 SPAST mutations have been reported, (10) including missense, nonsense or splice site mutations, small insertions or deletions, and large duplications or deletions. (11)(12)(13)(14) SPG4 encodes spastin, a 616 amino acid protein, which is a member of the AAA cassette (adenosine triphosphatases associated with diverse cellular activities). Spastin is a microtubule-severing enzyme (15) involved in remodelling protein complexes with adenosine triphosphate (ATP) hydrolysis and coordination of axonal microtubule interactions with the tubular endoplasmic reticulum network.…”
Section: Introductionmentioning
confidence: 99%
“…A leggyakrabban pontmutációk fordulnak elő, a betegek mintegy 40%-ában. Depienne és mtsai [19] MLPA-analízist alkalmazva különböző méretű exonikus deletiót észleltek a betegek megközelítőleg 20%-ában. Az MLPAanalízissel beteganyagunkban eddig nem találtunk elté-rést.…”
Section: Megbeszélésunclassified