Figure 1From: UniChem: a unified chemical structure cross-referencing and identifier tracking systemUniChem efficiently manages the creation and maintenance of structure-based ‘links’ between small molecule containing resources. Historically, the maintenance of ‘links’ between EMBL-EBI small molecule resources has adopted a model (A) where each resource must individually manage its own links to all other resources. The UniChem solution uses a model (B) where the mappings are maintained centrally, resulting in significantly lower overall maintenance costs, and allowing for the simple inclusion of additional resources in the future.Back to article page