Expanding the genetic and phenotypic spectrum of TRAPPC9 and MID2-related neurodevelopmental disabilities: report of two novel mutations, 3D-modelling, and molecular docking studies

Kharrat, Marwa; Triki, Chahnez; ben isaa, Abir; Bouchaala, Wafa; Alila, Olfa; Chouchen, Jihen; Ghouliya, Yosra; Kamoun, Fatma; Tlili, Abdelaziz; Fakhfakh, Faiza

doi:10.1038/s10038-024-01242-9

J Hum Genet

2024

DOI: 10.1038/s10038-024-01242-9

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Expanding the genetic and phenotypic spectrum of TRAPPC9 and MID2-related neurodevelopmental disabilities: report of two novel mutations, 3D-modelling, and molecular docking studies

Marwa Kharrat,

Chahnez Triki,

Abir ben isaa

et al.

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TRAPPopathies: Severe Multisystem Disorders Caused by Variants in Genes of the Transport Protein Particle (TRAPP) Complexes

Hall,

Sawant,

et al. 2024

IJMS

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The TRAPP (TRAnsport Protein Particle) protein complex is a multi-subunit complex involved in vesicular transport between intracellular compartments. The TRAPP complex plays an important role in endoplasmic reticulum-to-Golgi and Golgi-to-plasma membrane transport, as well as autophagy. TRAPP complexes comprise a core complex, TRAPPI, and the association of peripheral protein subunits to make two complexes, known as TRAPPII and TRAPPIII, which act as Guanine Nucleotide Exchange Factors (GEFs) of Rab11 and Rab1, respectively. Rab1 and Rab11 are GTPases that mediate cargo selection, packaging, and delivery during pre- and post-Golgi transport in the secretory pathway. Rab1 is also required for the first step of macroautophagy, a cellular recycling pathway. Pathogenic variants in genes encoding protein subunits of the TRAPP complex are associated with a range of rare but severe neurological, skeletal, and muscular disorders, collectively called TRAPPopathies. Disease-causing variants have been identified in multiple subunits of the TRAPP complex; however, little is known about the underlying disease mechanisms. In this review, we will provide an overview of the current knowledge surrounding disease-associated variants of the TRAPP complex subunits, propose new insights into the underlying disease pathology, and suggest future research directions into the underlying disease mechanisms.

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TRAPPopathies: Severe Multisystem Disorders Caused by Variants in Genes of the Transport Protein Particle (TRAPP) Complexes

Hall,

Sawant,

et al. 2024

IJMS

View full text Add to dashboard Cite

show abstract

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Expanding the genetic and phenotypic spectrum of TRAPPC9 and MID2-related neurodevelopmental disabilities: report of two novel mutations, 3D-modelling, and molecular docking studies

Cited by 1 publication

References 43 publications

TRAPPopathies: Severe Multisystem Disorders Caused by Variants in Genes of the Transport Protein Particle (TRAPP) Complexes

TRAPPopathies: Severe Multisystem Disorders Caused by Variants in Genes of the Transport Protein Particle (TRAPP) Complexes

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