Abasy Atlas

A comprehensive atlas of systems, global network properties, and system-level elements shaping regulatory networks across bacteria

Abasy (Across-bacteria systems) Atlas contains systems and system-level elements, and global properties for 52 reconstructed and metacurated regulatory networks (84,956 regulatory interactions) covering 42 bacteria (64% Gram positive and 36% Gram negative) distributed in 9 species (Mycobacterium tuberculosis, Bacillus subtilis, Corynebacterium glutamicum, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus pyogenes, Streptococcus pneumoniae, and Streptomyces coelicolor), containing 3,887 regulons and 1,891 systems (modules).

According to Wikipedia: The Abasy are demons in the mythology of the Sakha (also known as the Yakuts). Yakut Shamanism divides the universe into upper and lower layers, with the earth being a kind of indeterminate space or matter in between. The Abasy occupy the lower level, referred to as the underworld or kingdom of darkness. The natural decomposition approach also divides a regulatory network into three layers: coordination, processing, and integration. The lower layer is populated by the intermodular genes, a class of genes first identified by the natural decomposition approach, which integrate signals coming from different systems eliciting complex combinatorial responses[2].

Abasy Atlas is actively developed by the Regulatory Systems Biology Research Group at the Program of Evolutionary Genomics, Center for Genomic Sciences (CCG), UNAM.


  • Abasy will be down on July 9 from 09:00 to 15:00 CDT as campus data services will be under maintenaince, sorry for the incovenience (03/jun/18)
  • Abasy was down from April 29 to May 2 as it was moved into a new server due to a catastrophic hard disk failure (02/May/18)
  • Paper on C. glutamicum new data 10.1016/j.jbiotec.2016.10.025 (06/Nov/16)
  • New high-genomic-coverage data for C. glutamicum (29/Sep/16)
  • Paper on Abasy Atlas v1 10.1093/database/baw089 (05/May/16)
  • First public release v1! (30/Mar/16)