Methanocaldococcus jannaschii (Methanocaldococcus jannaschii DSM 2661) Genome Browser Gateway
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Methanocaldococcus jannaschii Genome Browser – methJann1 assembly (sequences)

Species Information

The Methanocaldococcus jannaschii DSM 2661 genome is 1.74 Million bp long and contains approximately 1823 predicted genes. The organism's genus was formerly Methanococcus, but it has been reclassified as Methanocaldococcus. M. jannaschii is a methanogen which grows optimally at 85C, and has the distinction of being the first archaeon and first hyperthermophile sequenced.

Taxonomy: Archaea; Euryarchaeota; Methanococci; Methanococcales; Methanocaldococcaceae; Methanocaldococcus.

Sequencing: The sequence was released August 1996 by the TIGR, and was described in Science 273:1058-73 (1996) Bult CJ, White O, Olsen GJ, Zhou L, Fleischmann RD, et al. "Complete genome sequence of the methanogenic archaeon, Methanococcus jannaschii."

Abstract: The complete 1.66-megabase pair genome sequence of an autotrophic archaeon, Methanococcus jannaschii, and its 58- and 16-kilobase pair extrachromosomal elements have been determined by whole-genome random sequencing. A total of 1738 predicted protein-coding genes were identified; however, only a minority of these (38 percent) could be assigned a putative cellular role with high confidence. Although the majority of genes related to energy production, cell division, and metabolism in M. jannaschii are most similar to those found in Bacteria, most of the genes involved in transcription, translation, and replication in M. jannaschii are more similar to those found in Eukaryotes.... [Click above reference link for full abstract]

Isolation: Non-PubMed Abstract

Sequenced related species/strains: Methanocaldococcus FS406, Methanococcus aeolicus, Methanocaldococcus fervens, Methanotorris igneus, Methanocaldococcus infernus, Methanococcus maripaludis, Methanothermococcus okinawensis, Methanococcus vannielii, Methanococcus voltae, Methanocaldococcus vulcanius

Browse Specific Gene/Feature Sets

Sample position queries

A genome position can be specified by chromosomal coordinate range, COGID, or keywords from the GenBank or TIGR description of a gene. The available chromosome/plasmid names are:

Browser Chrom/Plasmid NameLength (bp)GC Content (%)Gene CountNCBI RefSeq Accession

The following list shows examples of valid position queries for thisgenome: 

Request:Genome Browser Response:
chrDisplays 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
MJ0010Display genome at position of gene MJ0010

Phylogenetic tree of related species based on multiple-genome alignment in browser:

Phylogeny tree


The Archaeal Genome Browsers at UCSC were developed by members of theLowe Lab (Kevin Schneider,Katherine Pollard, Andy Pohl, Todd Lowe) and Robert Baertsch, with significant support fromthe UCSC Human GenomeBrowser group.The Archaeal Browsers are run by a slightly modifiedversion of the UCSC Human GenomeBrowser system. All queries, bug reports, content corrections, suggested improvements,and new track data submissions should be sent to Todd Lowe (

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