The database provides a thorough and robust insight into the evolutionary history of the human genome. The database combines carefully curated phylogenetic histories of human multigene families with synteny analysis, relative dating, and tree topology comparison approaches to comprehend the evolutionary mechanisms that shaped our own genome during its recent (Tetrapod specific) and ancient (prior to fish-tetrapod split) history.
Figure 1: This figure illustrates the actual location of members of all multi-gene families that constitute distinct human paralogon presented in PAHG. Family member names are clickable and would lead to in-depth source data. The figure constitutes all human chromosomes with family members distributed to the entire human karyotype except chromosome 'Y'.
Red bands and labels indicate gene family members located on the human Paralogon comprising chromosomes Hsa 2/7/12/17. Green color elements represent members distributed across Hsa 4/5/8/10; blue represents those on Hsa 1/2/8/20; and purple represents genes on Hsa 1/6/9/19. *1/*2/*8 chromosomes are repeatedly present among different Paralogon studies. Grey bands and labels correspond to gene family members mapped to chromosomes not assigned to a specific Paralogon group, namely Hsa 3, 11, 13, 14, 15, 16, 18, 21, 22, and chromosome X. Colored connecting lines link paralogous genes.
Figure 2: Four of the paralogy blocks in human genome i.e Hsa 2/7/12/17, Hsa 4/5/8/10, Hsa 1/2/8/20, and Hsa 1/6/9/19 are presented in this picture. Triplicated/quadruplicated paralogy regions residing on these human chromosomes are highlighted.