Houge-Janssens syndrome (HJS) is PP2A-related neurodevelopmental disorder. PP2A enzymes play essential regulatory roles in cellular signalling and physiology, including in brain function and development. It has been known for decades that PP2A dysregulation results in neurodegenerative disorders in the aging brain. Recently, It has been reported that mutations in several PP2A subunits cause rare neurodevelopmental disorders, such as NEDLBA and autosomal dominant intellectual developmental disorders (MRD).
Houge G, Haesen D, Vissers LE, Mehta S, Parker MJ, Wright M, Vogt J, McKee S, Tolmie JL, Cordeiro N, Kleefstra T, Willemsen MH, Reijnders MR, Berland S, Hayman E, Lahat E, Brilstra EH, van Gassen KL, Zonneveld-Huijssoon E, de Bie CI, Hoischen A, Eichler EE, Holdhus R, Steen VM, Doskeland SO, Hurles ME, FitzPatrick DR, Janssens V
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B56delta-related protein phosphatase 2A dysfunction identified in patients with intellectual disability.
Reynhout S, Jansen S, Haesen D, van Belle S, de Munnik SA, Bongers EMHF, Schieving JH, Marcelis C, Amiel J, Rio M, Mclaughlin H, Ladda R, Sell S, Kriek M, Peeters-Scholte CMPCD, Terhal PA, van Gassen KL, Verbeek N, Henry S, Scott Schwoerer J, Malik S, Revencu N, Ferreira CR, Macnamara E, Braakman HMH, Brimble E, Ruzhnikov MRZ, Wagner M, Harrer P, Wieczorek D, Kuechler A, Tziperman B, Barel O, de Vries BBA, Gordon CT, Janssens V, Vissers LELM
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De Novo Mutations Affecting the Catalytic C alpha Subunit of PP2A, PPP2CA, Cause Syndromic Intellectual Disability Resembling Other PP2A-Related Neurodevelopmental Disorders.
Verbinnen I, Douzgou Houge S, Hsieh TC, Lesmann H, Kirchhoff A, Genevieve D, Brimble E, Lenaerts L, Haesen D, Levy RJ, Thevenon J, Faivre L, Marco E, Chong JX, Bamshad M, Patterson K, Mirzaa GM, Foss K, Dobyns W, White SM, Pais L, O'Heir E, Itzikowitz R, Donald KA, Van der Merwe C, Mussa A, Cervini R, Giorgio E, Roscioli T, Dias KR, Evans CA, Brown NJ, Ruiz A, Trujillo Quintero JP, Rabin R, Pappas J, Yuan H, Lachlan K, Thomas S, Devlin A, Wright M, Martin R, Karwowska J, Posmyk R, Chatron N, Stark Z, Heath O, Delatycki M, Buchert R, Korenke GC, Ramsey K, Narayanan V, Grange DK, Weisenberg JL, Haack TB, Karch S, Kipkemoi P, Mangi M, Bindels de Heus KGCB, de Wit MY, Barakat TS, Lim D, Van Winckel G, Spillmann RC, Shashi V, Jacob M, Stehr AM, Krawitz P, Douzgos Houge G, Janssens V
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Pathogenic de novo variants in PPP2R5C cause a neurodevelopmental disorder within the Houge-Janssens syndrome spectrum.
