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. 2006 Jul 31;174(3):359–368. doi: 10.1083/jcb.200603044

Figure 4.

Figure 4.

mBet3p is enriched at the tER and adjacent pre-Golgi membranes. (A) Immuno-EM in NRK cells confirmed that mBet3p (5-nm gold particles) resides on the tER region labeled with Sec31p (10-nm gold particles). The arrow points to a COPII vesicle containing mBet3p. Bar, 100 nm. (B) mBet3p resides on the tER, and not ER, membranes (see Materials and methods for a description of the quantitation). NE, nuclear envelope; PM, plasma membrane; mito, mitochondrial outer membrane; Golgi, Golgi cisternae; endo, endosomal structures.