DAS/1

The DAS/1 Protocol

About DAS/1

The original version 1 specification, written by Lincoln Stein and Robin Dowell, is the basis for a number of clients and servers. More than 200 DAS/1 servers are currently running worldwide including WormBase, FlyBase, Ensembl, TIGR, UCSC, and UniProt. A number of websites and software applications are based on DAS.

The DAS/1 specification is currently available in version 1.53 from http://www.biodas.org/documents/spec.html

Clients

• Ensembl
• Spice
• Dasty
• Dasty2

Older (still maintained?):

• Geodesic
• OmniDAS/OmniGene

How to set up a DAS/1 server

In general it is quite easy to set up DAS server. All the server implementations are easy to set up. Most server implementations allow easy setup using ready provided data-adaptors (e.g. for GFF files). For custom data simple plugins can be written to quickly provide your data via DAS.

DAS server implementations are available in several programming languages:

• Perl

Proserver
LDAS

• Java

Dazzle
Dazzle server at Sanger

Publishing and Discovery of DAS/1 sources

See DasRegistry