Figure 3b.
From the following article: An Introduction to the PANTHER Pathway Resource
Figure 3b
Associating pathway molecule classes to subfamilies in a phylogenetic tree. The phylogenetic tree of GABA-B receptor. Subfamily 4 is the GABA-B receptor 2 (PANTHER accession PTHR10519:SF4), which is composed of sequences from human (red arrow), rat, insects, and worm.
