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ChEMBL or ChEMBLdb is a manually curated chemical database of bioactive molecules with drug inducing properties. [1] It is maintained by the European Bioinformatics Institute (EBI), of the European Molecular Biology Laboratory (), based at the Wellcome Trust Genome Campus, Hinxton, UK.
chemical database small molecules "ChemDB". 5,000,000 ChemExper Chemexper Chemical Directory catalogue chemicals CASno Structure SMILES "ChemExper". Chemxpert Database Chemxpert Chemical Database small molecules database buyers,suppliers "ChemxpertDB". 10,00000 Chemical Book East West University: commercially available compounds
A key difference between a registration system and a simple chemical database is the ability to accurately represent that which is known, unknown, and partially known. For example, a chemical database might store a molecule with stereochemistry unspecified, whereas a chemical registry system requires the registrar to specify whether the stereo ...
PubChem can be accessed for free through a web user interface. Millions of compound structures and descriptive datasets can be freely downloaded via FTP. PubChem contains multiple substance descriptions and small molecules with fewer than 100 atoms and 1,000 bonds. More than 80 database vendors contribute to the growing PubChem database. [2]
Meta databases are databases of databases that collect data about data to generate new data. They are capable of merging information from different sources and making it available in a new and more convenient form, or with an emphasis on a particular disease or organism.
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Ensembl makes these data freely accessible to the world research community. All the data and code produced by the Ensembl project is available to download, [7] and there is also a publicly accessible database server allowing remote access. In addition, the Ensembl website provides computer-generated visual displays of much of the data.
All data in the database is non-proprietary or is derived from a non-proprietary source. It is thus freely accessible and available to anyone. In addition, each data item is fully traceable and explicitly referenced to the original source. It is related in scope other databases such as ChEMBL, ChemSpider, DrugBank, MetaboLights and PubChem.