FtsZ is a prokaryotic homologue of the eukaryotic protein tubulin. It has the highest sequence similarity to eukaryotic actins of any known actin homologue. However, a homologue of the ERMES complex has not yet been identified in mammalian cells. Gustducin is a homologue for transducin, a G-protein involved in vision transduction. The human homologue of this protein was later identified and is sometimes called Hdm2. "Felicia amelloides" is a diploid having nine sets of homologue chromosomes (2n=18). The human homologue was identified as the most abundant transcript in adipose tissue. The porcine PAI contains five full-length "vap" genes, including the "vapA" homologue, "vapB". In 1992 the human homologue, named, c-mpl, was cloned. In the most common homologue, the pentyl chain is replaced with a propyl (3-carbon) chain. It is a close structural homologue of dimethyltryptamine and diethyltryptamine. Silver complexes tend to be similar to those of its lighter homologue copper. Most relevant information regarding mouse ApoB homologue, mApoB, has come from mouse studies. Difluoromescaline and trifluoromescaline are more potent than mescaline, as is its amphetamine homologue trimethoxyamphetamine. It is the anatomical homologue of the ankle of the human foot.