COPI COATED VESICLE
\kˈə͡ʊpi kˈə͡ʊtɪd vˈɛsɪkə͡l], \kˈəʊpi kˈəʊtɪd vˈɛsɪkəl], \k_ˈəʊ_p_i k_ˈəʊ_t_ɪ_d v_ˈɛ_s_ɪ_k_əl]\
Definitions of COPI COATED VESICLE
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TRANSPORT VESICLES formed when cell-membrane coated pits (COATED PITS, CELL-MEMBRANE) invaginate and pinch off. The outer surface of these vesicles is covered with a lattice-like network of COP (coat protein complex) proteins, either COPI or COPII. COPI coated vesicles transport backwards from the cisternae of the GOLGI APPARATUS to the rough endoplasmic reticulum (ENDOPLASMIC RETICULUM, ROUGH), while COPII coated vesicles transport forward from the rough endoplasmic reticulum to the Golgi apparatus.
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