Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on 'small' chemical compounds. The molecular entities in question are either natural products or synthetic products used to intervene in the processes of living organisms. In addition to molecular entities, ChEBI contains groups (parts of molecular entities) and classes of entities.
Extensive server possessing a wide range of tools for pattern discovery in DNA and protein sequences as well as in text. Tools for multiple sequence alignment, gene discovery, protein annotation, and other applications also exist on this server. A detailed help page is provided for all tools.
The PubChem BioAssay database is a public repository for biological activities of small molecules and small interfering RNAs (siRNAs). It archives experimental descriptions of assays and biological test results. A PubChem BioAssay data entry includes an assay description, a summary and detailed test results. Each assay record is linked to the molecular target, whenever possible, and is cross-referenced to other NCBI database records.
The University of Minnesota Biocatalysis/Biodegradation Database (UM-BBD) contains information on compounds, enzymes, reactions and microorganism entries. It includes a Biochemical Periodic Table (UM-BPT) and a rule-based Pathway Prediction System (UM-PPS) that predicts plausible pathways for microbial degradation of organic compounds. UM-BBD compound data are contributed to PubChem and ChemSpider, the public chemical databases.