Proteomics

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BioID proximity labelling of MAP4K4 interactors in HEK-293T cells


ABSTRACT: Mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) is Ser/Thr protein kinase highly expressed in medulloblastoma (MB) patient samples which promotes cell migration and invasiveness downstream of growth factor receptors. Although MAP4K4 implication in the control of the membrane protrusions at the leading edge of cells during migration and invasion in MB is established, its downstream effectors governing and mediating this process in MB have not been identified. In this study we explored the proteomic neighborhood of MAP4K4 in MB cells and to identify candidate potentially affecting its activity and pro-migratory functions. Towards this aim, we expressed BioID fused versions of MAP4K4(N- and C-terminal) in HEK-293T cells under presence of biotin. In the control setup, we expressed the BioID enzyme alone. After Streptavidin purification of biotinylated proteins, we performed mass spectrometry and quantified relative abundances compared to control conditions.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Martin Baumgartner  

LAB HEAD: Martin Baumgartner

PROVIDER: PXD031863 | Pride | 2022-08-04

REPOSITORIES: Pride

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