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

. 2017 Jul 27;7:6644. doi: 10.1038/s41598-017-06291-z

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

© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Identification of the putative dominant pacemaker by Isl1 detection. (A) Histological section of sinuatrial junction of the adult Anolis equestrie, showing the left and right leaflet of the sinuatrial valve (lsav and rsav, respectively). Isl1 in myocardial nuclei is expressed (arrow heads) immediately upstream of the sinuatrial valve in a ring-like domain. (B) This cartoon indicates the sectioning plane (A-A) relative to the sinuatrial junction (SA) and whole heart. The outline of the sinus venosus is indicated in grey. (C,D) Isl1 in the adult Python regius is expressed as in Anolis. LA, left atrium; RA, right atrium; SV, sinus venosus; V, ventricle.