Dictyostelium discoideum Genome Statistics

Dictyostelium discoideum Genome Statistics


Genome Information (excluding mitochondrial genome) 1
Genome size 34 Mb
Chromosomes 6
Chromosome size range 3.5-8.6 Mb
Overall GC content 22.4%

Mitochondrial Genome 2
Mitochondrial genome size 55.6 kb
Number of mitochondrial genes 41
Mitochondrial GC content 27.4%

Gene Information (excluding non-protein-coding genes) 1
Mean gene size 1,756 bp
Mean protein size 518 aa
Gene spacing 2.5 kb
GC content in exons 27%
GC content in introns 12%
GC content in intergenic regions 15%

Gene Structure  
Number of genes with introns 9,226
Mean intron size 1 146 bp
Mean number of introns per spliced gene 1 1.9

Gene Annotation Status  
Number of protein-coding genes 12,646
Number of curated gene models 9,444
Genes with experimentally derived GO annotations 1,342
Genes with GO annotations inferred from sequence similarity 1,292
Number of metabolic pathways 213
Number of genes in metabolic pathways 606

Publications  
PubMed references for Dictyostelium discoideum 6,885
References linked to genes 4,223

Non-Protein-Coding Genes  
rRNA genes (extrachromosomal) 3 800
tRNA genes 418
Small nuclear RNA (snRNA) genes 4 18
Small nucleolar RNA (snoRNA) genes 5 19
Other non-coding RNA (ncRNA) genes 5 35

Pseudogenes
Number of annotated pseudogenes (Genes are annotated as pseudogenes when they are truncated, have frameshifts or stop codons, and are similar to another (parent) gene in the genome). 188
Predicted pseudogenes (William Loomis, personal communication, 2005, estimated from number of genes with sequence similarity and ESTs).
1,910

Expression Data 6
Number of ESTs 155,036
Genes with ESTs 6,801

Transposable Elements 7
Tdd-4 40
Tdd-5 5
DDT-A 20
DDT-B 20
DDT-S 130
thug-S 10
thug-T 10
DIRS-1 235
Skipper 60
DGLT-A 20
DGLT-B <10
TRE3-A 60
TRE3-B 50
TRE3-C 30
TRE3-D 5
TRE5-A 70
TRE5-B 15
TRE5-C 5


1) Eichinger et al. (2005)
2) Ogawa et al. (2000)
3) Sucgang et al. (2003)
4) Hinas et al. (2006)
5) Aspegren et al. (2004)
6) Urushihara et al. (2004)
7) Winckler et al. (2005)

All information on this page is as present in dictyBase at time of update, unless otherwise noted.

Last Updated September 9, 2010

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