Anti-SNX4 (aa 395-428) polyclonal antibody

Reaction of mepirizole (M) with tin(IV) halide and dimethyltin(IV) dihalide compounds yielded complexes of types [SnX4(M)] and [SnMe2X2(M)] respectively (X = Cl, Br) which were studied by vibrational, NMR and Mossbauer spectroscopy. The structures of dichloro- and dibromodimethyl(mepirizole)tin(IV). determined by X-ray diffractometry, are isomorphous, the crystals of both compounds being monoclinic with very similar cell constants. In both compounds the mepirizole ligand coordinates to the tin atom via the pyrimidinic and pyrazole N-atoms.

A major outstanding issue in cell biology is the lack of understanding of the contribution of tubulovesicular transport carriers (TCs) to intracellular trafficking pathways within 3D cellular environments. This is primarily due to the challenges associated with the use of microscopy techniques to track these highly motile, small compartments. In the present study we have used multifocal plane microscopy with localized photoactivation to overcome these limitations. Using this approach, we have characterized individual components constituting the recycling pathway of the receptor FcRn. Specifically, several different pathways followed by TCs that intersect with larger, relatively static sorting endosomes have been defined. These pathways include a novel 'looping' process in which TCs leave and return to the same sorting endosome. Significantly, TCs with different itineraries can be identified by associations with distinct complements of Rab GTPases, APPL1 and SNX4. These studies provide a framework for further analyses of the recycling pathway.