Format

Send to

Choose Destination
See comment in PubMed Commons below
Mol Biol Evol. 2011 Jan;28(1):45-8. doi: 10.1093/molbev/msq267. Epub 2010 Oct 11.

Molecular convergence of infrared vision in snakes.

Abstract

It has been discovered that the transient receptor potential ankyrin 1 (TRPA1) proteins of Boidae (boas), Pythonidae (pythons), and Crotalinae (pit vipers) are used to detect infrared radiation, but the molecular mechanism for detecting the infrared radiation is unknown. Here, relating the amino acid substitutions in their TRPA1 proteins and the functional differentiations, we propose that three parallel amino acid changes (L330M, Q391H, and S434T) are responsible for the development of infrared vision in the three groups of snakes. Protein modeling shows that the three amino acid changes alter the structures of the central region of their ankyrin repeats.

PMID:
20937734
PMCID:
PMC3108606
DOI:
10.1093/molbev/msq267
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Silverchair Information Systems Icon for PubMed Central
    Loading ...
    Support Center