RIAM (Rap1-interacting adaptor molecule) regulates complement-dependent phagocytosis
نویسندگان
چکیده
منابع مشابه
Binding Properties and Stability of the Ras-Association Domain of Rap1-GTP Interacting Adapter Molecule (RIAM)
The Rap1-GTP interacting adapter protein (RIAM) is an important protein in Rap1-mediated integrin activation. By binding to both Rap1 GTPase and talin, RIAM recruits talin to the cell membrane, thus facilitating talin-dependent integrin activation. In this article, we studied the role of the RIAM Ras-association (RA) and pleckstrin-homology (PH) domains in the interaction with Rap1. We found th...
متن کاملRap1-interacting adapter molecule (RIAM) associates with the plasma membrane via a proximity detector
Adaptive immunity depends on lymphocyte adhesion that is mediated by the integrin lymphocyte functional antigen 1 (LFA-1). The small guanosine triphosphatase Rap1 regulates LFA-1 adhesiveness through one of its effectors, Rap1-interacting adapter molecule (RIAM). We show that RIAM was recruited to the lymphocyte plasma membrane (PM) through its Ras association (RA) and pleckstrin homology (PH) ...
متن کاملThe role of RIAM in platelets put to a test.
In this issue of Blood, Stritt et al show that platelet functions dependent on integrin activation are unimpaired in mice lacking the Rap1-GTP-interacting adaptor molecule (RIAM).
متن کاملRIAM, an Ena/VASP and Profilin ligand, interacts with Rap1-GTP and mediates Rap1-induced adhesion.
The small GTPase Rap1 induces integrin-mediated adhesion and changes in the actin cytoskeleton. The mechanisms that mediate these effects of Rap1 are poorly understood. We have identified RIAM as a Rap1-GTP-interacting adaptor molecule. RIAM defines a family of adaptor molecules that contain a RA-like (Ras association) domain, a PH (pleckstrin homology) domain, and various proline-rich motifs. ...
متن کاملRap1 and its effector RIAM are required for lymphocyte trafficking.
Regulation of integrins is critical for lymphocyte adhesion to endothelium and trafficking through secondary lymphoid organs. Inside-out signaling to integrins is mediated by the small GTPase Rap1. Two effectors of Rap1 regulate integrins, RapL and Rap1 interacting adaptor molecule (RIAM). Using mice conditionally deficient in both Rap1a and Rap1b and mice null for RIAM, we show that the Rap1/R...
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ژورنال
عنوان ژورنال: Cellular and Molecular Life Sciences
سال: 2013
ISSN: 1420-682X,1420-9071
DOI: 10.1007/s00018-013-1268-6