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Entrez searches the National Center for Biotechnology Information (NCBI) databases to provide integrated access to nucleotide and protein sequence data from over 160,000 species, along with three-dimensional protein structures, genomic mapping information, PubMed MEDLINE, and more. Sequence data are combined from various sources, including GenBank, EMBL, DDBJ, RefSeq, PIR-International, PRF, Swiss-Prot, and PDB. Entrez can be searched with a wide variety of text terms such as author name, journal name, gene or protein name, organism, unique identifier (e.g., accession number, sequence ID, PubMed ID), and other terms, depending on the database being searched.
Database topics
Chemistry and Chemical Engineering; Toxicology and Chemical Safety
Physical extent
1 online resource
The Laboratory Chemical Safety Summary (LCSS) is based on the format described by the National Research Council in the publication "Prudent Practices in the Laboratory: Handling and Management of Chemical Hazards" (2011). The LCSS in PubChem contains pertinent chemical hazard and safety information. It is available when a GHS Classification (Globally Harmonized System of Classification and Labeling of Chemicals) is present for a given PubChem Compound record. The GHS classification codes and hazard pictograms are summarized in the PubChem GHS page. The LCSS data from PubChem is freely available, and "can be downloaded as a data stream in bulk or on-demand from the PubChem website."
Database topics
Chemistry and Chemical Engineering; Biology; Medicine; Toxicology and Chemical Safety; General and Reference Works
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PubMed is an index to over 5,000 journals in medicine, nursing, dentistry, veterinary medicine, the health care system, and the preclinical sciences, including both basic biomedical sciences and clinical practice. Medical Subject Headings (MeSH) provide a powerful tool for searching topics. Updated daily, covers 1946--present, with some older material.