Synechococcus elongatus PCC 7942
![Synechococcus_elongatus](/system/organisms/images/000/000/289/medium/Synechococcus_elongatus.jpg?1319706274)
Names | Synechococcus elongatus PCC 7942 |
---|---|
Accession numbers | NC_007595, NC_007604 |
Background | The freshwater cyanobacterium Synechococcus PCC 7942 (previously known as Anacystis nidulans R2) was the first cyanobacterium demonstrated to be reliably transformable by exogenously added DNA. Over the decades many genetic tools have been developed for Synechococcus and applied to other transformable cyanobacteria. Strain PCC 7942 is an obligate photoautotroph with a genome of approximately 2.7 Mb. It has been extensively studied by a multi-national research community with respect to: acquisition of inorganic carbon, transport and regulation of nitrogen compounds, response to iron deprivation, acclimation to a variety of nutrient stresses, adaptation to environmental variations in temperature and light intensity and photosynthesis. In recent years, Synechococcus PCC 7942 has taken a pioneering position as the only developed model system for exploring the mechanism of the prokaryotic circadian clock. Gene organization and sequence are nearly identical to another freshwater cyanobacterium Synechococcus elongatus PCC 6301 (SYNP6) except for a large inversion of 187 kb. The endpoints of this inversion are found in genes that may encode outer membrane porins, and thus the two proteins in question are polymorphic with respect to one another. These differences may explain the fact that SYNE7 is naturally competent for transformation while SYNP6 is not. (EBI Integr8) |
Taxonomy | |
Kingdom: | Bacteria |
Phylum: | Cyanobacteria |
Class: | NA |
Order: | Chroococcales |
Family: | NA |
Genus: | Synechococcus |
Species: | elongatus |
Strain | PCC 7942 |
Complete | Yes |
Sequencing centre | (08-AUG-2005) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA (10-NOV-2005) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA |
Sequencing quality | Level 6: Finished |
Sequencing depth | NA |
Sequencing method | NA |
Isolation site | fresh water |
Isolation country | USA |
Number of replicons | 2 |
Gram staining properties | Negative |
Shape | Bacilli |
Mobility | Yes |
Flagellar presence | No |
Number of membranes | 2 |
Oxygen requirements | Facultative |
Optimal temperature | NA |
Temperature range | Mesophilic |
Habitat | Aquatic |
Biotic relationship | Free living |
Host name | NA |
Cell arrangement | Chains, Singles |
Sporulation | NA |
Metabolism | NA |
Energy source | Photoautotroph, Photosynthetic |
Diseases | NA |
Pathogenicity | No |
Glycolysis / Gluconeogenesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Ubiquinone and other terpenoid-quinone biosynthesis
Photosynthesis
Photosynthesis - antenna proteins
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Glutathione metabolism
Streptomycin biosynthesis
Peptidoglycan biosynthesis
Pyruvate metabolism
One carbon pool by folate
Carbon fixation in photosynthetic organisms
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Lipoic acid metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Ubiquinone and other terpenoid-quinone biosynthesis
Photosynthesis
Photosynthesis - antenna proteins
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Glutathione metabolism
Streptomycin biosynthesis
Peptidoglycan biosynthesis
Pyruvate metabolism
One carbon pool by folate
Carbon fixation in photosynthetic organisms
Thiamine metabolism
Riboflavin metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Lipoic acid metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis
NCBI Genomes
NC_007595NC_007604