Syntaxin-17

Definition:

SNAREs, soluble N-ethylmaleimide-sensitive factor-attachment protein receptors, are essential proteins for fusion of cellular membranes. SNAREs localized on opposing membranes assemble to form a trans-SNARE complex, an extended, parallel four alpha-helical bundle that drives membrane fusion. STX17 is a SNARE of the autophagosome involved in autophagy through the direct control of autophagosome membrane fusion with the lysosome membrane. May also play a role in the early secretory pathway where it may maintain the architecture of the endoplasmic reticulum-Golgi intermediate compartment/ERGIC and Golgi and/or regulate transport between the endoplasmic reticulum, the ERGIC and the Golgi.

References:

[1]. Jiajie Diao, et al. ATG14 promotes membrane tethering and fusion of autophagosomes to endolysosomes. Nature. 2015 Apr 23;520(7548):563-6. [Content Brief]

[2]. Kohei Arasaki, et al. Legionella effector Lpg1137 shuts down ER-mitochondria communication through cleavage of syntaxin 17. Nat Commun. 2017 May 15;8:15406. [Content Brief]

[3]. Eisuke Itakura, et al. The hairpin-type tail-anchored SNARE syntaxin 17 targets to autophagosomes for fusion with endosomes/lysosomes. Cell. 2012 Dec 7;151(6):1256-69. [Content Brief]

[4]. Madhavi Muppirala, et al. Syntaxin 17 cycles between the ER and ERGIC and is required to maintain the architecture of ERGIC and Golgi. Biol Cell. 2011 Jul;103(7):333-50. [Content Brief]

[5]. Xiawei Cheng, et al. Pacer Mediates the Function of Class III PI3K and HOPS Complexes in Autophagosome Maturation by Engaging Stx17. Mol Cell. 2017 Mar 16;65(6):1029-1043.e5. [Content Brief]

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