Nucleic Acids

Nucleic Acids

Introduction to Nucleic Acids

Nucleic Acid Sequence Databases

Nucleic Acid Structure Resources

Codon Usage Tables

Nucleic Acid Sequence Databases

Introduction to Nucleic Acid Sequence Databases
Instructions on Searching Nucleic Acid Sequence Databases
or look over the short form

GenBank - Genbank provides easy search interfaces and simply presented, but information-loaded returns. Genbank is good for identifying genes based on sequence or finding relationships with other organisms

EMBL - EMBL provides data for those not trying to identify genes. It archives the in vivo sequences of nucleic acids for lots of organisms so comparisons can be made easily. This database is mirrored by Genbank.

DBGET - DBGET is a science links database that summarizes the major databases for nucleic acids, proteins, ligands, medicine, etc. It could prove useful for those trying to cross-reference information.

dbEST - dbEST is a subdivision of GenBank specific for queries on expressed sequence tags ("single pass cDNA sequences").

DDBJ - DDBJ essentially covers the information found on GenBank and EMBL. Searching on DDBJ, though, can be confusing since interfaces are not as straightforward. One attribute of this site is that it offers a Japanese version.

GSDB:Genome Sequence Databases

Ribosomal Database Project - The RDP is a Gopher collection of ribosomal sequence data

Nucleic Acid Structure Resources

RNA Secondary Structures - This site provides information on secondary structures of rRNAs and group I introns. This site also contains some great links to other ribosomal and structural sites.
Image LIbrary of Biological Macromolecules - This gopher-based site contains hundreds of images of molecules and complexes along with the reference information. Images are well-categorized although entering the with a specific goal would be helpful.

Codon Usage Tables

Indiana University's Gopher-Based Codon List - Indiana University's codon tables summarizes amino acid information for over 50 organisms.
Codon Lists at Harvard - More comprehensive than Indiana University's codon lists, Harvard's codon lists includes more organisms and more information. For the novice or uninitiated, though, it can be quite intimidating.

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Last updated: July 23, 1998
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