Molecular & Cellular Biology

Enzymes:

• BRENDA (Institute of Biochemistry and Bioinformatics)
• Enzyme Nomenclature
• Enzyme Structures 
• MEROPS: the Peptidase Database 
• Restriction Enzyme Database 

Genes & Genomes

• NCBI Gene
• Ensembl 
• USCS Genome Bioinformatics 
• NCBI Genome 
• NCBI Genomes and Maps Databases 
• TargetScanHuman

Macromolecules 

• RCSB Protein Data Bank * 
• BMRB BioMagResBank 
• Structure 

Nucleic Acids

• BLAST
• miRBase 

Each entry represents a predicted hairpin portion of a miRNA transcript (termed mir in the database), with information on the location and sequence of the mature miRNA sequence (termed miR).

• Nucleotide Database 

Proteins 

• RCSB Protein Data Bank
• ExPASy Proteomics Server
• BMRB: Biological Magnetic Resonance Data Bank 
• COGs - Clusters of Orthologous Groups (of proteins) 
• InterPro 
• NCBI Protein 
• PRINTS 
• PROSITE 
• Robetta: Full Chain Protein Structure Prediction Server 

• UniProt