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RCSB Protein Databank (PDB) PDB-101 is an online portal for teachers, students, and the general public to promote exploration in the world of proteins and nucleic acids. Learning about the diverse shapes and functions of these biological macromolecules helps to understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease to biological energy.
CAS Source Index (CASSI) Search Tool The CAS Source Index (CASSI) Search Tool is an online resource intended to support researchers and librarians who need accurate bibliographic information. Use this complimentary tool to quickly identify or confirm journal titles and abbreviations for publications indexed by CAS since 1907, including serial and non-serial scientific and technical publications.