Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2000 Jan 24;148(2):317–324. doi: 10.1083/jcb.148.2.317

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2000 The Rockefeller University Press

This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).

PMC Copyright notice

Cross-sections of membrane patches analyzed by electron microscopy. The fragments were incubated either in the presence of 2 mM EGTA (A) or in the presence of 100 μM Ca²⁺ (C) for 3 min before fixation. Several secretory vesicles (arrowheads) are attached to the cytoplasmic face of the plasma membrane in the EGTA-treated patch. (B) Two secretory vesicles at higher magnification. Bars: (A and C) 0.5 μm; (B) 0.25 μm.