About: Mutational Analysis of ACTN4, Encoding alpha-Actinin 4, in Patients with Focal Segmental Glomerulosclerosis Using HRM Method     Goto   Sponge   NotDistinct   Permalink

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Description
  • alpha-Actinin 4, encoded by ACTN4, is an F-actin crosslinking protein which belongs to the spectrin gene superfamily. It has a head-to-tail homodimer structure with three main domains. Mutations in ACTN4 are associated with idiopathic nephrotic syndrome (NS). However, until today only a few mutations have been described in this gene. We used genomic DNA of 48 patients with focal segmental glomerulosclerosis (FSGS) and minimal change disease (MCD) to screen for ACTN4 mutations by high-resolution melting analysis (HRM). Suspect samples were sequenced and compared with healthy controls. To investigate the prevalence and possible effect of some substitutions found in FSGS/MCD patients we also looked for these changes in patients with IgA nephropathy (IgAN) and membranous glomerulonephritis (MGN). We found 20 exonic and intronic substitutions in the group of 48 Czech patients. The substitution 2242A>G (p.Asn748Asp) is a candidate mutation which was identified in one patient but not in any of the 200 healthy controls. Exon 19 seems to be a variable region due to the amount of revealed polymorphisms. In this region we also found three unreported substitutions in IgAN patients, c.2351C>T (p.A1a784Val), c.2378G>A (p.Cys793Tyr) and c.23936>A (p.Gly798Asp). These substitutions were not found in any tested healthy controls. To conclude, the ACTN4 mutations are not a frequent cause of FSGS/MCD in Czech adult patients. One new ACTN4 mutation has been identified.
  • alpha-Actinin 4, encoded by ACTN4, is an F-actin crosslinking protein which belongs to the spectrin gene superfamily. It has a head-to-tail homodimer structure with three main domains. Mutations in ACTN4 are associated with idiopathic nephrotic syndrome (NS). However, until today only a few mutations have been described in this gene. We used genomic DNA of 48 patients with focal segmental glomerulosclerosis (FSGS) and minimal change disease (MCD) to screen for ACTN4 mutations by high-resolution melting analysis (HRM). Suspect samples were sequenced and compared with healthy controls. To investigate the prevalence and possible effect of some substitutions found in FSGS/MCD patients we also looked for these changes in patients with IgA nephropathy (IgAN) and membranous glomerulonephritis (MGN). We found 20 exonic and intronic substitutions in the group of 48 Czech patients. The substitution 2242A>G (p.Asn748Asp) is a candidate mutation which was identified in one patient but not in any of the 200 healthy controls. Exon 19 seems to be a variable region due to the amount of revealed polymorphisms. In this region we also found three unreported substitutions in IgAN patients, c.2351C>T (p.A1a784Val), c.2378G>A (p.Cys793Tyr) and c.23936>A (p.Gly798Asp). These substitutions were not found in any tested healthy controls. To conclude, the ACTN4 mutations are not a frequent cause of FSGS/MCD in Czech adult patients. One new ACTN4 mutation has been identified. (en)
Title
  • Mutational Analysis of ACTN4, Encoding alpha-Actinin 4, in Patients with Focal Segmental Glomerulosclerosis Using HRM Method
  • Mutational Analysis of ACTN4, Encoding alpha-Actinin 4, in Patients with Focal Segmental Glomerulosclerosis Using HRM Method (en)
skos:prefLabel
  • Mutational Analysis of ACTN4, Encoding alpha-Actinin 4, in Patients with Focal Segmental Glomerulosclerosis Using HRM Method
  • Mutational Analysis of ACTN4, Encoding alpha-Actinin 4, in Patients with Focal Segmental Glomerulosclerosis Using HRM Method (en)
skos:notation
  • RIV/00216208:11110/13:10189258!RIV14-MZ0-11110___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(NR9427)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 90237
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11110/13:10189258
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • muscle; reveals; subunit; spectrin; carcinoma; synaptopodin; identification; protein; alpha-actinin-4; gene amplification (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [BDF9477C2063]
http://linked.open...i/riv/nazevZdroje
  • Folia Biologica
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 59
http://linked.open...iv/tvurceVysledku
  • Tesař, Vladimír
  • Štekrová, Jitka
  • Reiterová, Jana
  • Šafránková, Hana
  • Kohoutová, Milada
  • Obeidová, Lena
  • Zidkova, Anastassiya
  • Šafaříková, Markéta
http://linked.open...ain/vavai/riv/wos
  • 000322419900003
issn
  • 0015-5500
number of pages
http://localhost/t...ganizacniJednotka
  • 11110
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