Keyword search (3,619 papers available)


The phenotype associated with variants in TANGO2 may be explained by a dual role of the protein in ER-to-Golgi transport and at the mitochondria.

Author(s): Milev MP, Saint-Dic D, Zardoui K, Klopstock T, Law C, Distelmaier F, Sacher M

TANGO2 variants result in a complex disease phenotype consisting of recurrent crisis-induced rhabdomyolysis, encephalopathy, seizures, lactic acidosis, hypoglycemia, and cardiac arrhythmias. Although first described in a fruit fly model as a protein necessa...

Article GUID: 32909282
Characterization of three TRAPPC11 variants suggests a critical role for the extreme carboxy terminus of the protein.

Author(s): Milev MP, Stanga D, Schänzer A, Nascimento A, Saint-Dic D, Ortez C, Benito DN, Barrios DG, Colomer J, Badosa C, Jou C, Gallano P, Gonzalez-Q...

Sci Rep. 2019 Oct 01;9(1):14036 Authors: Milev MP, Stanga D, Schänzer A, Nascimento A, Saint-Dic D, Ortez C, Benito DN, Barrios DG, Colomer J, Badosa C, Jou C, Gallano P, Gonzalez-Quereda L, ...

Article GUID: 31575891
Mutations in TRAPPC12 Manifest in Progressive Childhood Encephalopathy and Golgi Dysfunction.

Author(s): Milev MP, Grout ME, Saint-Dic D, Cheng YH, Glass IA, Hale CJ, Hanna DS, Dorschner MO, Prematilake K, Shaag A, Elpeleg O, Sacher M, Doherty D...

Am J Hum Genet. 2017 Aug 03;101(2):291-299 Authors: Milev MP, Grout ME, Saint-Dic D, Cheng YH, Glass IA, Hale CJ, Hanna DS, Dorschner MO, Prematilake K, Shaag A, Elpeleg O, Sacher M, Doherty D, Ed...

Article GUID: 28777934
TRAMM/TrappC12 plays a role in chromosome congression, kinetochore stability, and CENP-E recruitment.

Author(s): Milev MP, Hasaj B, Saint-Dic D, Snounou S, Zhao Q, Sacher M

J Cell Biol. 2015 Apr 27;209(2):221-34 Authors: Milev MP, Hasaj B, Saint-Dic D, Snounou S, Zhao Q, Sacher M

Article GUID: 25918224
Bi-allelic mutations in TRAPPC2L result in a neurodevelopmental disorder and have an impact on RAB11 in fibroblasts.

Author(s): Milev MP, Graziano C, Karall D, Kuper WFE, Al-Deri N, Cordelli DM, Haack TB, Danhauser K, Iuso A, Palombo F, Pippucci T, Prokisch H, Saint-D...

J Med Genet. 2018 Nov;55(11):753-764 Authors: Milev MP, Graziano C, Karall D, Kuper WFE, Al-Deri N, Cordelli DM, Haack TB, Danhauser K, Iuso A, Palombo F, Pippucci T, Prokisch H, Saint-Dic D, Seri...

Article GUID: 30120216
TRAPPC11 functions in autophagy by recruiting ATG2B-WIPI4/WDR45 to preautophagosomal membranes.

Author(s): Stanga D, Zhao Q, Milev MP, Saint-Dic D, Jimenez-Mallebrera C, Sacher M

Traffic. 2019 May;20(5):325-345 Authors: Stanga D, Zhao Q, Milev MP, Saint-Dic D, Jimenez-Mallebrera C, Sacher M

Article GUID: 30843302
Title:TRAPPC11 functions in autophagy by recruiting ATG2B-WIPI4/WDR45 to preautophagosomal membranes.
Authors:Stanga D,  Zhao Q,  Milev MP,  Saint-Dic D,  Jimenez-Mallebrera C,  Sacher M
Link:https://www.ncbi.nlm.nih.gov/pubmed/30843302?dopt=Abstract
Category:Traffic
PMID:30843302
Dept Affiliation: CONCORDIA
1 Concordia University, Department of Biology, Montreal, Quebec, Canada.
2 University of Montreal, Department of Medicine and Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada.
3 Neuromuscular Unit, Neuropaediatrics Department, Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu and CIBERER, Barcelona, Spain.
4 McGill University, Department of Anatomy and Cell Biology, Quebec, Canada.

Description:

TRAPPC11 functions in autophagy by recruiting ATG2B-WIPI4/WDR45 to preautophagosomal membranes.

Traffic. 2019 May;20(5):325-345

Authors: Stanga D, Zhao Q, Milev MP, Saint-Dic D, Jimenez-Mallebrera C, Sacher M

Abstract

TRAPPC11 has been implicated in membrane traffic and lipid-linked oligosaccharide synthesis, and mutations in TRAPPC11 result in neuromuscular and developmental phenotypes. Here, we show that TRAPPC11 has a role upstream of autophagosome formation during macroautophagy. Upon TRAPPC11 depletion, LC3-positive membranes accumulate prior to, and fail to be cleared during, starvation. A proximity biotinylation assay identified ATG2B and its binding partner WIPI4/WDR45 as TRAPPC11 interactors. TRAPPC11 depletion phenocopies that of ATG2 and WIPI4 and recruitment of both proteins to membranes is defective upon reduction of TRAPPC11. We find that a portion of TRAPPC11 and other TRAPP III proteins localize to isolation membranes. Fibroblasts from a patient with TRAPPC11 mutations failed to recruit ATG2B-WIPI4, suggesting that this interaction is physiologically relevant. Since ATG2B-WIPI4 is required for isolation membrane expansion, our study suggests that TRAPPC11 plays a role in this process. We propose a model whereby the TRAPP III complex participates in the formation and expansion of the isolation membrane at several steps.

PMID: 30843302 [PubMed - in process]