Project description:A lectin from Methanococcus voltae A3 has been cloned, expressed, purified and characterized. The lectin appears to be specific for complex sugars. The protein crystallized in a tetragonal space group, with around 16 subunits in the asymmetric unit. Sequence comparisons indicate the lectin to have a β-prism I fold, with poor homology to lectins of known three-dimensional structure.
Project description:The microbiologically influenced corrosion is one of the serious problems in petroleum tanks. It was found that the methanogenic archaea Methanococcus maripaludis OS7 isolated from the inside of petroleum tanks has the iron corrosive property. To identify the genes related to the iron corrosion, we have performed proteome analysis of iron-corrosive archaeon M. maripaludis OS7 and its corrosion-defective mutant.
