There is a natural generalization of a short exact sequence of chain complexes, called a \ ltered chain complex'. DrugBank contains equivalent information on ~2832 drugs and 800 drug metabolites, T3DB contains information on ~3670 common toxins and environmental pollutants, SMPDB contains pathway diagrams for ~132,335 human metabolic, drug and disease pathways as well as ~60,628 pathways for other organisms, while FooDB contains equivalent information on ~70,000 food components and food additives. A short exact sequence of chain complexes gives rise to a long exact sequence in homology, which is a fundamental tool for computing homology in a number of situations. In homological algebra and algebraic topology, a spectral sequence is a means of computing homology groups by taking successive approximations. Four additional databases, DrugBank, T3DB, SMPDB and FooDB are also part of the HMDB suite of databases. The HMDB database supports extensive text, sequence, chemical structure, MS and NMR spectral query searches. Many data fields are hyperlinked to other databases ( KEGG, PubChem, MetaCyc, ChEBI, PDB, UniProt, and GenBank) and a variety of structure and pathway viewing applets. Each MetaboCard entry contains 130 data fields with 2/3 of the information being devoted to chemical/clinical data and the other 1/3 devoted to enzymatic or biochemical data. In these cases, authors must provide evidence of identity based on sequence (when appropriate) and mass spectral characterization. We construct some spectral sequences as tools for computing commutative cohomology of commutative Lie algebras in characteristic 2. Additionally, 8,610 protein sequences (enzymes and transporters) are linked to these metabolite entries. The database contains 220,945 metabolite entries including both water-soluble and lipid soluble metabolites. The database is designed to contain or link three kinds of data: 1) chemical data, 2) clinical data, and 3) molecular biology/biochemistry data. But a spectral sequence which arises from a double complex has. It is intended to be used for applications in metabolomics, clinical chemistry, biomarker discovery and general education. I am by no means claiming of course that there are no honest spectral sequences. Welcome to HMDB Version 5.0 The Human Metabolome Database (HMDB) is a freely available electronic database containing detailed information about small molecule metabolites found in the human body.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |