(i) ENTREZ: Integrated information database retrieval system of NCBI. Using Entrez system we can access literature, sequences (both proteins and nucleotides) and structures (3D).
(ii) PDB: (Protein Data Bank): This database has sequence of those protein whose 3-D structures are known Sources: NCBI – USA; EBI, U.K.
(iii) FASTA:
• FASTA is a DNA and protein sequence alignment software package.
• The current FASTA package contains programs for protein: protein, DNA: DNA, protein: translated DNA (with frame shifts), and ordered or unordered peptide searches. Recent versions of the FASTA package include special translated search algorithms that correctly handle frame shift errors (which six-frame-translated searches do not handle very well) when comparing nucleotide to protein sequence data.
(iv) Mouse Genome Database: MGD strives to provide an extensively integrated information resource with experimental details annotated from both literature and on-line genomic data sources.
MGD collaborates with other bioinformatics groups to curate a definitive set of information about the laboratory mouse.
