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

. 1997 Mar 1;109(3):313–326. doi: 10.1085/jgp.109.3.313

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

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

Single-channel Ba currents are activated by depolarization. (A) Continuous record (1.7 s) from a patch held at +40 mV from the resting potential shows the typical brief channel openings and two bursts of long openings (right). (B) Capacity- and leak current–subtracted single-channel currents which were elicited by depolarizing voltage steps. (C) Quasimacroscopic currents obtained from averaged, leak-subtracted single-channel current traces elicited by voltage jumps like those in B. Between 8 and 16 records were averaged. (D) Current integrals (charge) from C plotted as a function of the depolarization. Potentials shown along each trace (B and C) indicate the depolarization reached during 70-mV steps of 100 ms duration that were applied from different holding potentials. All potentials are relative to the cells' resting membrane potential. Cell-attached were patches from different cells.