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The <b>Distributed Annotation System</b> (DAS) defines a communication protocol used | The <b>Distributed Annotation System</b> (DAS) defines a communication protocol used | ||
| − | to exchange | + | to exchange [http://wikiomics.org/wiki/Viewing_and_sharing_genome_annotations biological sequence annotations]. |
| − | It is motivated by the idea that annotations | + | It is motivated by the idea that such annotations |
| − | should not be provided by single centralized databases, but instead be spread | + | should not be provided by single centralized databases, but should instead be spread |
over multiple sites. Data distribution, performed by DAS servers, is separated | over multiple sites. Data distribution, performed by DAS servers, is separated | ||
from visualization, which is done by DAS clients. | from visualization, which is done by DAS clients. | ||
DAS is a client-server system in which a single client integrates information from | DAS is a client-server system in which a single client integrates information from | ||
| − | multiple servers. It allows a single machine to gather up | + | multiple servers. It allows a single machine to gather up sequence annotation |
information from multiple distant web sites, collate the information, and display it | information from multiple distant web sites, collate the information, and display it | ||
to the user in a single view. Little coordination is needed among the various | to the user in a single view. Little coordination is needed among the various | ||
Revision as of 16:07, 26 March 2007
Welcome To BioDAS.org
Contents
About DAS
The Distributed Annotation System (DAS) defines a communication protocol used to exchange biological sequence annotations. It is motivated by the idea that such annotations should not be provided by single centralized databases, but should instead be spread over multiple sites. Data distribution, performed by DAS servers, is separated from visualization, which is done by DAS clients.
DAS is a client-server system in which a single client integrates information from multiple servers. It allows a single machine to gather up sequence annotation information from multiple distant web sites, collate the information, and display it to the user in a single view. Little coordination is needed among the various information providers.
DAS is heavily used in the genome bioinformatics community. Over the last years we have also seen growing acceptance in the protein sequence and structure communities.
What can I do with DAS ?
Here are some examples of DAS-enabled websites and applications:
- Jalview: http://www.jalview.org
The Protocol
Currently there are two versions of the DAS protocol
DAS/1
DAS/1 is the original version of the specification written by Lincoln Stein, Sean Eddy, and Robin Dowell and is the basis for a number of existing clients and servers. More than 200 DAS/1 servers are currently running worldwide including WormBase, FlyBase, Ensembl, TIGR, UCSC, and UniProt. For a listing of all available DAS sources please proceed to the DasRegistry http://www.dasregistry.org
DAS/2
DAS/2 is the latest version of the DAS specification and builds on the capabilities of the original DAS/1 spec. See the DAS/2 page for more information.
Mailing Lists
DAS FAQ
See the DasFAQ page for some frequently asked questions.
CVS Access
See DAS/2#CVS Access for CVS access information to various aspects of the DAS/2 development effort.
Contribute to this Wiki
Want to contribute to the Wiki? please see some beginners instructions at the WikiGetStarted page.
