Microtubles (MTs) are oriented with a fast growing plus-end and a slower growing minus-end. The MT plus-end is a crucial site for the regulation of MT dynamics and MT association with different cellular organelles by several groups of plus-end tracking proteins (+TIPs). The End-Binding (EB) family of +TIPs includes EB1 (MAPRE1), EB2 (MAPRE2, RP1), and EB3 (MAPRE3, EBF3). EB proteins are ubiquitiously expressed +TIPs that can dimerize through a coiled-coil C-terminal region, and bind MTs through an N-terminal calponin homology domain. EB proteins can stabilize MTs, increase MT dynamics, and suppress MT pauses. Site specific phosphorylation may regulate EB activity. EB3 Ser-162 phosphorylation destabilizes EB3 dimer and reduces MT growth, while aurora-kinase induced Ser-176 phosphorylation regulates EB3 stability during mitosis.
Human recombinant EB3 is a full length protein with an N-terminal His-tag (34 kDa). The protein is detected by rabbit polyclonal anti-EB3 (a.a. 171-182) (Cat.#EP5121) and rat monoclonal EB3 (Cat.#EM5101).
Gouveia, S.M. & Akhmanova, A. (2010) Int Rev Cell Mol Biol. 285:1.
Komarova, Y. et al. (2005) Mol Biol Cell. 16(11):5334.
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*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.
This kit contains: