Caenorhabditis briggsae Photo courtesy of Eric Haag, All Rights Reserved.

The Jan. 2007 Caenorhabditis briggsae draft assembly was produced by the Genome Sequencing Center at Washington University in St. Louis (WUSTL) School of Medicine.

### Sample position queries

A genome position can be specified by the accession number of a sequenced genomic region, an mRNA or EST, a chromosomal coordinate range, or keywords from the GenBank description of an mRNA. The following list shows examples of valid position queries for the C. briggsae genome. See the User's Guide for more information.

Request: | Genome Browser Response:
chrI |  | Displays all of chromosome I
chrI:1-1000000 |  | Displays the first million bases of chrI
chrV:1000000+2000 |  | Displays a region of chrVn that spans 2000 bases, starting at position 1000000
R02870 |  | Displays region of EST associated with GenBank accession R02870
U48289 |  | Displays the region associated with the mRNA accession U48289
protein phosphatase PP2C |  | Lists only records pertaining to protein phophatase PP2C
Kimble,J. |  | Lists mRNAs deposited by co-author J. Kimble
Use this last format for author queries. Although GenBank requires the search format Kimble J, internally it uses the format Kimble,J..

### Assembly details

This assembly contains 91,234,787 bp of ordered and oriented sequence on six chromosomes: chrI, chrII, chrIII, chrIV, chrV and chrX. An additional 9,932,049 bp of sequence is localized to specific chromosomes but is not ordered; this is displayed on the artifical chr*_random chromosomes. 7,311,690 bp of sequence is unordered and not localized, displayed on the artifical chromosome chrUn. The sequencing centers estimate that this whole genome shotgun assembly achieved 98% coverage of the genome.

The C. briggsae mitochondrial sequence, of length 14,420 bp, is also available as the virtual chromosome "chrM". The GenBank accession is AC186293.1.

Bulk downloads of the sequence and annotation data are available via the Genome Browser FTP server or the Downloads page. These data have specific conditions for use.

The C. briggsae browser annotation tracks were generated by UCSC and collaborators worldwide. See the Credits page for a detailed list of the organizations and individuals who contributed to this release.