- National Center for Biotechnology Information Home. Links to Genbank and other molecular and literature databases.
- Entrez WWW Server. A search and retrieval system that integrates information from databases at NCBI.
- Entrez Nucleotides Database. A collection of sequences from several sources, including GenBank, RefSeq, and PDB.
- Entrez Protein Database. A database compiled from a variety of sources, including SwissProt, PIR, PRF, PDB, and translations from annotated coding regions in GenBank and RefSeq.
- Molecular Modelling Database (MMDB). Contains over 10,000 3-D macromolecular structures, including proteins and polynucleotides.
- Complete Genome Assemblies. The whole genomes of over 800 organisms.
- NCBI Taxonomy Homepage.
- Entrez WWW Server. A search and retrieval system that integrates information from databases at NCBI.
- EBI. European Bioinformatics Institute.
- EMBL Nucleotide Sequence Database. Europe’s primary nucleotide sequence resource.
- SWISS-PROT. An annotated protein sequence database.
- Completed Genomes at the EBI.
- Macromolecular Structure Database (EBI-MSD).
- Cogent. Complete Genome Tracking Database. A Database of Complete Genomes and their Protein Sequences.
- DDBJ. DNA Data Bank of Japan.
- GOBASE – The Organelle Genome Database. A taxonomically broad organelle genome database that organizes and integrates diverse data related to organelles.
- Ribosomal Database Project II. Online data analysis of ribosomal sequences, rRNA derived phylogenetic trees, and aligned and annotated rRNA sequences. Michigan State University.
- ssu rRNA database. Departement Biochemie. Universiteit Antwerpen.
- ExPASy Molecular Biology Server. Expert Protein Analysis System proteomics server of the Swiss Institute of Bioinformatics (SIB), dedicated to the analysis of protein sequences and structures as well as 2-D PAGE.
- IMB Jena Image Library of Biological Macromolecules. Information on three-dimensional biopolymer structures with emphasis on visualization and analysis.
- Protein Data Bank (PDB). International repository for the processing and distribution of 3-D macromolecular structure data.
- Nucleic Acid Database (NDB). Structural information about nucleic acids.
- ISIS: Intron Sequence and Information database. A comprehensive web based intron information system containing all identifiable spliceosomal intron sequences in GenBank with information about both individual sequences and gross properties of natural groupings of sequence (for example by taxa ) using a nonredundant subset of the data.
- Reciprocal Net. A distributed database used by research crystallographers to store information about molecular structures.
- Klotho: Biochemical Compounds Declarative Database
- Metabolic Pathways of Biochemistry