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Medientyp: E-Artikel Titel: The human kinesin‐14 HSET tracks the tips of growing microtubules in vitro Beteiligte: Braun, Marcus; Lansky, Zdenek; Bajer, Seweryn; Fink, Gero; Kasprzak, Andrzej A.; Diez, Stefan Erschienen: Wiley, 2013 Erschienen in: Cytoskeleton, 70 (2013) 9, Seite 515-521 Sprache: Englisch DOI: 10.1002/cm.21133 ISSN: 1949-3584; 1949-3592 Schlagwörter: Cell Biology ; Structural Biology Entstehung: Anmerkungen: Beschreibung: <jats:p>Tip‐tracking of kinesin‐14 motor proteins is believed to be crucial for the assembly and maintenance of dynamic microtubule arrays. However, in contrast to other members of the kinesin‐14 family, <jats:italic>H. sapiens</jats:italic> kinesin‐14 HSET has so far never been observed to be prominently located at microtubule plus ends. Here, using an in vitro microtubule dynamics reconstitution assay we observe tip‐tracking of GFP‐HSET in the presence of <jats:italic>H. sapiens</jats:italic> EB1 (hsEB1). Tip‐tracking depended on the SxIP‐like motif in HSET as well as on the EB homology domain in hsEB1. <jats:italic>D. melanogaster</jats:italic> Ncd and <jats:italic>S. pombe</jats:italic> Klp2 tip‐tracking reconstitution assays accompanied by kinesin‐14 amino acid sequence comparisons suggest that SxIP‐like motif mediated tip‐tracking dependent on EB family proteins is conserved in the kinesin‐14 family of molecular motors. © 2013 Wiley Periodicals, Inc.</jats:p>