WIP is a chaperone for Wiskott–Aldrich syndrome protein (WASP)

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WIP is a chaperone for Wiskott-Aldrich syndrome protein (WASP).

Wiskott-Aldrich syndrome protein (WASP) is in a complex with WASP-interacting protein (WIP). WASP levels, but not mRNA levels, were severely diminished in T cells from WIP(-/-) mice and were increased by introduction of WIP in these cells. The WASP binding domain of WIP was shown to protect WASP from degradation by calpain in vitro. Treatment with the proteasome inhibitors MG132 and bortezomib ...

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Wiskott–Aldrich syndrome protein (WASp) is a binding partner for c-Src family protein-tyrosine kinases

BACKGROUND Receptor-mediated signal transduction requires the assembly of multimeric complexes of signalling proteins, and a number of conserved protein domains, such as the SH2, SH3 and PH domains, are involved in mediating protein-protein interactions in such complexes. The identification of binding partners for these domains has added considerably to our understanding of signal-transduction ...

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A novel primary human immunodeficiency due to deficiency in the WASP-interacting protein WIP

A female offspring of consanguineous parents, showed features of Wiskott-Aldrich syndrome (WAS), including recurrent infections, eczema, thrombocytopenia, defective T cell proliferation and chemotaxis, and impaired natural killer cell function. Cells from this patient had undetectable WAS protein (WASP), but normal WAS sequence and messenger RNA levels. WASP interacting protein (WIP), which sta...

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WIP/WASp-based actin-polymerization machinery is essential for myoblast fusion in Drosophila.

Formation of syncytial muscle fibers involves repeated rounds of cell fusion between growing myotubes and neighboring myoblasts. We have established that Wsp, the Drosophila homolog of the WASp family of microfilament nucleation-promoting factors, is an essential facilitator of myoblast fusion in Drosophila embryos. D-WIP, a homolog of the conserved Verprolin/WASp Interacting Protein family of ...

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WIP Remodeling Actin behind the Scenes: How WIP Reshapes Immune and Other Functions

Actin polymerization is a fundamental cellular process regulating immune cell functions and the immune response. The Wiskott-Aldrich syndrome protein (WASp) is an actin nucleation promoting factor, which is exclusively expressed in hematopoietic cells, where it plays a key regulatory role in cytoskeletal dynamics. WASp interacting protein (WIP) was first discovered as the binding partner of WAS...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2007

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.0610275104