The BindingDB is a public database of measured binding affinities for biomolecules, genetically or chemically modified biomolecules, and synthetic compounds.The database currently contains data generated by isothermal titration calorimetry, enzyme inhibition, and receptor-ligand binding methods.
BioCyc is a collection of 17831 Pathway/Genome Databases (PGDBs) for model eukaryotes and for thousands of microbes, plus software tools for exploring them. BioCyc is an encyclopedic reference that contains curated data from 130,000 publications. Subscription is required for unlimited use. (SRI International)
The BMCD stores information on protein and nucleic acid crystals that have been reported in the literature or deposited in the Protein Data Bank. Crystal growth conditions have been parsed into separate chemicals with numerical concentrations to faciliate data mining. The mission of the BMCD is to enable the discovery of relations among protein properties, crystal conditions, and crystal behavior, in order to facilitate the design of crystal screening strategies for the determination of new structures.
Free database containing information on over 6500 enzymes: nomenclature, EC and registry numbers, reaction and specificity, inhibitors, structure, isolation, literature references, etc. (Technical University of Braunschweig)
Dictionary of small molecular entities that are natural or synthetic products used to intervene in the processes of living organisms. Data drawn from public files such as IntEnz and KEGG LIGAND, etc. (EMBL-EBI)
ChEMBL is a manually curated database of bioactive molecules with drug-like properties. It brings together chemical, bioactivity and genomic data to aid the translation of genomic information into effective new drugs. (European Bioinformatics Institute)
DrugBank Online is a free online database containing information on drugs and drug targets. It combines detailed drug (i.e. chemical, pharmacological and pharmaceutical) data with comprehensive drug target (i.e. sequence, structure, and pathway) information.
"ENZYME is a repository of information relative to the nomenclature of enzymes. It is primarily based on the recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) and it describes each type of characterized enzyme for which an EC (Enzyme Commission) number has been provided." (ExPASy)
Search by name, application, specificity or EC number. The Enzyme Explorer also features detailed sites on metabolic pathways, protein kinases, protease specificity and inhibition, and glycoprotein analysis as well as new cell signaling, analytical and diagnostic enzymes and reagents. (Sigma-Aldrich)
Subtitle: "Recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology on the Nomenclature and Classification of Enzymes by the Reactions they Catalyse." Browse and search for enzyme names using EC numbers.
"Expasy is the bioinformatics resource portal of the SIB Swiss Institute of Bioinformatics. It is an extensible and integrative portal which provides access to over 160 databases and software tools, developed by SIB Groups and supporting a range of life science and clinical research domains, from genomics, proteomics and structural biology, to evolution and phylogeny, systems biology and medical chemistry."
"GenBank is the NIH genetic sequence database, an annotated collection of all publicly available DNA sequences. GenBank is part of the International Nucleotide Sequence Database Collaboration, which comprises the DNA DataBank of Japan (DDBJ), the European Molecular Biology Laboratory (EMBL), and GenBank at NCBI."
"The Human Metabolome Database (HMDB) is a freely available electronic database containing detailed information about small molecule metabolites found in the human body. It is intended to be used for applications in metabolomics, clinical chemistry, biomarker discovery and general education. The database is designed to contain or link three kinds of data: 1) chemical data, 2) clinical data, and 3) molecular biology/biochemistry data." (The Metabolomics Innovation Centre, Canada)
Free web site with Java-based (JME) interface for searching substructure, similarity and pharmacophore similarity on a collection of molecules. Also offers a chemical property calculation function for determining estimated logP (octanol-water partition coefficient), PSA, etc.
Open access database designed to cover all microbially-derived natural products published in the peer-reviewed primary scientific literature. This encompasses bacterial, fungal and cyanobacterial compounds, but does not include compounds from plants, invertebrates or other higher organisms unless these compounds have also been explicitly identified from a microbial source. Compounds from lichens and mushrooms and other higher fungi are included. Compounds from marine macro algae and diatoms are excluded. (Simon Fraser Univ.)
"The NDB contains information about experimentally-determined nucleic acids and complex assemblies.
Use the NDB to perform searches based on annotations relating to sequence, structure and function, and to download, analyze, and learn about nucleic acids." (Rutgers University)
"This resource is powered by the Protein Data Bank archive-information about the 3D shapes of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease."
A wiki site that aims to collect, organize and disseminate structural and functional knowledge about protein, RNA, DNA, and other macromolecules, and their assemblies and interactions with small molecules.
Open cheminformatics database on properties and biological activities of small molecules, primarily of interest to pharmaceutical and chemical genomics researchers, plus larger molecules such as nucleotides, carbohydrates, lipids, peptides, and chemically-modified macromolecules. Records are contributed by many sources, including government agencies, publishers, vendors, and individual researchers. (NIH/NLM)
"A curated database containing structured information about biochemical reactions and their corresponding kinetics. It describes participants and modifiers of the reactions, as well as measured kinetic data (including kinetic rate equations) embedded in their experimental and environmental context."
"Structural Classification of Proteins” extended (SCOPe) is a database of protein structural relationships that extends the SCOP database. SCOP is a (mostly) manually curated ordering of domains from the majority of proteins of known structure in a hierarchy according to structural and evolutionary relationships." (UC Berkeley)
STITCH is a database of known and predicted interactions between chemicals and proteins. The interactions include direct (physical) and indirect (functional) associations; they stem from computational prediction, from knowledge transfer between organisms, and from interactions aggregated from other (primary) databases. The STITCH database covers over 9M proteins from 2031 organisms as of 2021. (EMBL/SIB/CPR-NNF)