Abstract: The hyperthermophile Nanoarchaeum equitans is an obligate symbiont growing in coculture with the crenarchaeon Ignicoccus. Ribosomal protein and rRNA-based phylogenies place its branching point early in the archaeal lineage, representing the new archaeal kingdom Nanoarchaeota. The N. equitans genome (490,885 base pairs) encodes the machinery for information processing and repair, but lacks genes for lipid, cofactor, amino acid, or nucleotide biosyntheses. It is the smallest microbial genome sequenced to date, and also one of the most compact, with 95% of the DNA predicted to encode proteins or stable RNAs. Its limited biosynthetic and catabolic capacity indicates that N. equitans' symbiotic relationship to Ignicoccus is parasitic, making it the only known archaeal parasite. Unlike the small... [Click above reference link for full abstract]
A genome position can be specified by chromosomal coordinate range, COG
ID, or keywords from the GenBank or TIGR description of a gene.
The available chromosome/plasmid names are:
Browser Chrom/Plasmid Name | Length (bp) | GC Content (%) | Gene Count | NCBI RefSeq Accession |
---|---|---|---|---|
chr | 490885 | 31.56 | 582 | NC_005213 |
The following list shows examples of valid position queries for this genome:
Request: | Genome Browser Response: |
---|---|
chr | Displays the entire sequence "chr" in the browser window |
chr:1-10000 | Displays first ten thousand bases of the sequence "chr" |
transporter | Lists all genes with "transporter" in the name or description |
NEQ009 | Display genome at position of gene NEQ009 |
If you use the browser in your published research, please cite our publication in the Nucleic Acids Research Database Issue. Citations and positive feedback will help us obtain funding to continue development of this community resource.