Number of genes encoding K+ channels

Range 1 S. cerevisiae: 68 C. elegans Gene
Organism Eukaryotes
Reference Alberts, Molecular biology of the cell, 4th edition, 2002, chapter 11, link Voltage-gated Cation Channels Are Evolutionarily and Structurally Related
Comments Whereas the single-celled yeast S. cerevisiae contains a single gene that codes for a voltage-gated K+ channel, the genome of the worm C. elegans contains 68 genes that encode different but related K+ channels. This complexity indicates that even a simple nervous system made up of only 302 neurons uses a large number of different ion channels to compute its responses.
Entered by Uri M
ID 106435