Ensembl X.tropicalis

 

Explore the Xenopus tropicalis genome

Search Ensembl Xenopus tropicalis

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e.g. scaffold_1 or ENSXETG00000012499 or Q59FM4.1

Example Data Points

This release of X.tropicalis data is assembled into scaffolds, so there are no chromosomes available to browse. Use the BLAST and SSAHA buttons in the menu bar, left, to locate data.

A few example data points:

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About the X. tropicalis genome

Assembly

XenopusThe Xenopus tropicalis genome assembly version 4.1 [August 2005] is the fourth of a series of preliminary assembly releases by the JGI that are planned as part of the ongoing X. tropicalis genome project. This Ensembl website presents the sequence data provided by the JGI.

The reads were assembled using JAZZ, the JGI assembler, producing a genome of approximately 1.5 Gb. The assembly contains 19,501 scaffolds with an average coverage of 7.65X. Roughly half of the genome is contained in 272 scaffolds, all at least 1.56 Mb in length. In this update to the 4.0 assembly, some scaffolds showing homology to a known prokaryotic contaminant as well as non-cellular or vector contamination have been removed - see the JGI website (above) for more information.

Annotation

The gene set for Xenopus tropicalis was built using a modified version of the standard Ensembl pipeline. Both Xenopus tropicalis and Xenopus laevis proteins were used to predict gene structures. cDNAs from both species were used to add UTRs. Gene predictions were also based on Xenopus tropicalis cDNAs manually annotated in the July 2005 jamboree. Finally, gene predictions based on UniProt proteins were used to fill gaps in the annotation.

What's New in Ensembl 49

Xenopus tropicalis News

There is no Xenopus tropicalis-specific news this release.

General News

  • Release schedule

    Ensembl release 50 will occur in July (rather than in April as originally scheduled).
    Read more...

  • API changes - regulatory features
    Regulatory feature support has been moved from the core API to the functional genomics API. More information about using the new code...
  • Removal of viral genes
    We have removed a total of about 1200 viral genes from the following species.
    Read more...
  • Mart updates
    RGD and SGD Symbol+ID combinations have been introduced, similar to HGNC, MGI and ZFIN. The issue with subsets of homologs being returned has been resolved.
  • Compara updates

    Multiple alignments

    We are now using the new enredo-pecan-ortheus (EPO) pipeline for 7-way alignments (placental mammals).
    Read more...

More news...

Statistics

Assembly: JGI 4.1, Aug 2005
Genebuild: Ensembl, Nov 2005
Database version: 49.41i
Known protein-coding genes: 5,440
Projected protein-coding genes: 8,165
Novel protein-coding genes: 4,418
RNA genes: 946
Genscan gene predictions: 66,517
Gene exons: 192,682
Gene transcripts: 27,711
Base Pairs: 1,510,886,836
Golden Path Length: 1,510,886,836
Most common InterPro domains: Top 40 Top 500

How the statistics are calculated


 

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Ensembl release 49 - Mar 2008
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