Ensembl Chimp

 

What's New in Ensembl 34

    • Compara database
      • Addition of pairwise (Translated BLAT) Mouse/Fugu
      • Addition of multiple alignments (Mercator/Mlagan) Human/Mouse/Rat/Dog
    • Display of regulatory factors

      A new dynamic page, GeneRegulationView, displays all the regulatory factors for a given gene; it can be reached via the lefthand menu on a GeneView page where the gene has regulatory information available.
      Read more...

    • News archive

      "What's New" items from releases prior to the new website design have been imported into the database, and can now be accessed through a new dynamic page, NewsView.
      Read more...

    • Species statistics

      The statistics table on each species home page now shows the correct date of the last full genebuild, rather than the date of the last database update.
      Read more...

    • Schema version checking

      The 'schema version' entries in the core 'meta' table have been changed to hold the current version numbers. This allows the API to check that the software and databases are using the same versions and give meaningful error messages.

More news...

Karyotype

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About the Chimp genome

Assembly

chimpanzeeThis site provides a data set based on the November 13th 2003 4x shotgun assembly from the Chimpanzee Sequencing Consortium headed by the GSC (St. Louis) and The Broad Institute (MIT).

The assembly is a merge of a "modified de novo" (MDN) assembly from the ARACHNE group, which used the human genome to establish that particular inserts were not chimeric, and a separate "validated chimp-on-human" (VCH) assembly which took the chimp reads which align uniquely to human, formed them into contigs via this alignment, and removed contigs which failed a two-haplotype consistency check.

Shared reads were used to align the two assemblies to each other, and where they were consistent, the VCH sequence was transferred to the MDN, resulting in the released merged assembly.

This release of the assembly has the following properties:

  • 361782 contigs, having N50 length 15.7 Kb
  • contig length total 2.73 Gb, spanning 3.02 Gb
  • 37849 supercontigs, having N50 length 8.6 Mb (not including gaps).

Annotation

The genome was aligned to human by UCSC using BLASTz. These alignments were used to transfer human gene structures (Human Build 34d) to chimpanzee. Owing to the low coverage commensurate with a 4x shotgun, there will inevitably be some mis-assemblies and mis-placements; however with better data it is expected that most chimpanzee genes will align with near-identical human genes.

Statistics

Assembly: CHIMP 1, Nov 2003
Genebuild: Ensembl, Mar 2005
Database version: 34.2c
Gene predictions : 22,475
Genscan gene predictions: 129,588
Gene exons: 226,066
Gene transcripts: 43,000
Base Pairs: 2,733,948,177
Golden Path Length: 2,733,223,211
Most common InterPro domains: Top 40 Top 500

 

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Ensembl v34 - Oct 2005
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