Human / teleostei SERC3, gene synteny: Genes in the neighborhood of SERC3 are e.g., ttpal and pkig. Orthologs to these neighboring genes exist in teleostei, but SERC3 is not located here. This finding is in agreement with the fact that teleostei SERC3 genes cluster with those of tetrapod SERC1 rather than SERC3. This topology is consistent in multiple phylogenetic analyses and significantly supported in the Bayesian analysis.