TNPO1 binds KIF17 dimer

Stable Identifier
Reaction [binding]
Homo sapiens
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KIF17 is an alternate kinesin-2 motor that is required in some cell types for anterograde IFT and for the ciliary localization of CNG (Ou et al, 2005; Jenkins et al, 2006; Insinna et al, 2008; Insinna et al, 2009; Li et al, 2010; reviewed in Scholey, 2008; Verhey et al, 2011). KIF17 contains a C-terminal ciliary localization signal that mediates its interaction with nuclear import factor TNPO1 (importin beta-2). This interaction is required for the ciliary targeting of KIF17 and is regulated by RAN GTP levels such that the interaction is promoted in the cytosol where RAN:GTP levels are low, and is destabilized in the cilium where RAN:GTP levels are high (Dishinger et al, 2010). The roles of TNPO1 and the RAN:GTP gradient in promoting ciliary localization of KIF17 are analogous to their roles in nuclear import and provide evidence for the first time of conserved mechanisms governing nuclear and ciliary localization (Dishinger et al, 2010; Devos et al, 2004; Gruss, 2010).
Literature References
PubMed ID Title Journal Year
15523559 Components of coated vesicles and nuclear pore complexes share a common molecular architecture

Chait, BT, Alber, F, Devos, D, Dokudovskaya, S, Williams, R, Rout, MP, Sali, A

PLoS Biol. 2004
21936775 Kinesin motors and primary cilia

Kee, HL, Verhey, KJ, Dishinger, J

Biochem. Soc. Trans. 2011
19384852 Different roles for KIF17 and kinesin II in photoreceptor development and maintenance

Sedmak, T, Humby, M, Insinna, C, Wolfrum, U, Besharse, JC

Dev. Dyn. 2009
16049494 Functional coordination of intraflagellar transport motors

Snow, JJ, Leroux, MR, Blacque, OE, Ou, G, Scholey, JM

Nature 2005
20526327 Nuclear transport receptor goes moonlighting

Gruss, OJ

Nat. Cell Biol. 2010
16782012 Ciliary targeting of olfactory CNG channels requires the CNGB1b subunit and the kinesin-2 motor protein, KIF17

Zhang, L, Hurd, TW, Martens, JR, Brown, RL, Jenkins, PM, Verhey, KJ, McEwen, DP, Margolis, B

Curr. Biol. 2006
20530210 The small GTPases ARL-13 and ARL-3 coordinate intraflagellar transport and ciliogenesis

Ling, K, Wei, Q, Hu, J, Li, Y, Zhang, Y

J. Cell Biol. 2010
18180368 Intraflagellar transport motors in cilia: moving along the cell's antenna

Scholey, JM

J. Cell Biol. 2008
18304522 The homodimeric kinesin, Kif17, is essential for vertebrate photoreceptor sensory outer segment development

Pathak, N, Perkins, B, Insinna, C, Drummond, I, Besharse, JC

Dev. Biol. 2008
20526328 Ciliary entry of the kinesin-2 motor KIF17 is regulated by importin-beta2 and RanGTP

Hurd, TW, Kee, HL, Martens, JR, Truong, YN, Hammond, JW, Jenkins, PM, Verhey, KJ, Dishinger, JF, Fan, S, Margolis, B

Nat. Cell Biol. 2010
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