The EST database is a collection of short single-read transcript sequences from GenBank. These sequences provide a resource to evaluate gene expression,

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Presentation transcript:

The EST database is a collection of short single-read transcript sequences from GenBank. These sequences provide a resource to evaluate gene expression, find potential variation, and annotate genes. for sequences (usually partial and single-pass) of messenger RNA (i.e., cDNA derived from mRNA) Note that you can search non-human, non-mouse ESTs separately 3EST Database

4 The sequences submitted to dbEST were created from thousands of different cDNA libraries and may have originated from whole organs (for example, human brain and liver), specialized tissues, or individual cells Sequences in dbEST have been submitted by various EST sequencing projects and are freely available.

EST Database5 Since 1992, when the first EST data appeared in GenBank, the number of EST sequences has dramatically increased. As of July 2008, dbEST contained more than 54 million sequences (from about libraries) and accounts for nearly 62% of all GenBank entries

Genetic Engineers Biotechnologist Bioinformatics Engineers And all peopel related to this topic 6EST Database

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How do I use a simple query? You can use a protein name,gene name,or gene symbol directly. Searching with a submitter or author name in the following format will produce the best results. Smith JR (last name followed by initials, no punctuation) Database identifiers such as accession numbers or gi numbers will directly retrieve the full sequence record. CAA79696 To find a match to an exact phrase, enclose it in quotation marks. "contactin associated protein" 11EST Database

Use the Boolean operator to find better records Use the Limits page to select the appropriate limit & Restrict your search to specific subsets of records (such as specific organism, molecule type, source database, genomic or cDNA library name) You can also use the Filter your results after a search. You can change the format, number, or sorting order of records with Display Settings menu For download sequence records,Click the Send to menu 12EST Database

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Thank You for Your Attention EST Database18