Pre_GI Gene

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Host: NC_007413 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_007413:1405817 Anabaena variabilis ATCC 29413, complete genome

Host Lineage: Anabaena variabilis; Anabaena; Nostocaceae; Nostocales; Cyanobacteria; Bacteria

General Information: These cyanobacteria are bluegreen algae that are capable of fixing carbon and nitrogen. They form long filaments and can be found worldwide in various aquatic environments as well as some terrestrial ones. These bacteria can form a variety of differentiated cell types, including spore-like cells (akinetes), small motile filaments (hormongia) and most importantly, heterocysts that are nitrogen-producing cells. The heterocyst produces multiple layers outside of its cell wall, shuts down photosystem II in order to inhibit oxygenic photosynthesis and ramps up metabolism in order to use up the oxygen present. Heterocysts donate fixed nitrogen compounds as amino acids to neighboring cells and in return receive a photosynthetically produced carbon source such as sucrose. These organisms produce toxic blooms in aquatic environments that are harmful or fatal to animals and humans due to the various cyanotoxins they produce. Anabaena variabilis is a filamentous heterocyst-forming cyanobacterium that fixes nitrogen and CO2 using the energy of sunlight via oxygen-evolving plant-type photosynthesis. In addition, this organism has been studied extensively for the production of hydrogen using solar energy.


This island contains ribosomal proteins or RNA related elements and may indicate a False Positive Prediction!

StartEndLengthCDS descriptionQuickGO ontologyBLASTP
140581714072321416Histidine KinaseQuickGO ontologyBLASTP
140758414092661683Integrase catalytic regionQuickGO ontologyBLASTP
14092701410106837hypothetical proteinBLASTP
14101061410609504hypothetical proteinBLASTP
141099214120561065SerineThreonine protein kinaseQuickGO ontologyBLASTP
14120571412527471hypothetical proteinBLASTP
14125731412908336metal-dependent hydrolase-likeQuickGO ontologyBLASTP
141299214159162925Type I site-specific deoxyribonuclease HsdRQuickGO ontologyBLASTP
141593814180012064Predicted transcriptional regulatorQuickGO ontologyBLASTP
141801914193831365Restriction modification system DNA specificity domainQuickGO ontologyBLASTP
141938014209301551N-6 DNA methylaseQuickGO ontologyBLASTP
14209501421402453Possible Transcriptional Regulator MerR familyQuickGO ontologyBLASTP
142147214234001929hypothetical proteinBLASTP
1424275142434874tRNA-ProQuickGO ontology
14244941425369876lipoyl synthaseQuickGO ontologyBLASTP
14254211426344924NAD-dependent glycerol-3-phosphate dehydrogenase-likeQuickGO ontologyBLASTP
142686714281171251RNA polymerase sigma-like factorQuickGO ontologyBLASTP