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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Curr Opin Immunol. 2011 Nov 24;24(1):21–31. doi: 10.1016/j.coi.2011.10.006

Fig. 1. Autophagy pathway.

Fig. 1

Four major contributors proposed as the source of autophagic membrane: 1) ER, endoplasmic reticulum; 2) G/SP, Golgi/secretory pathway; 3) PM, plasma membrane; 4) MT, mitochondria. 5) Autophagic pathway has been stylized into a logo flow chart (crescent, initiation/phagophore formation; double membrane, early/nondegradative autophagosome; single membrane with dense content, degradative autolysosome). SLRs, sequestosome 1/p6-lke receptors. PI3P, phosphatidylinositol 3-phosphate.