Defining heat shock response for the thermoacidophilic model crenarchaeon Sulfolobus acidocaldarius.

The crenarchaeon Sulfolobus acidocaldarius, growing optimally at temperatures between 75 and 80 °C, thrives in volcanic hot spring habitats that are typified by large temperature gradients, which impose frequent temperature stresses on the cells. Heat shock response is characterized by an upregulation of heat shock proteins, but similar to most (hyper-)thermophilic archaea, S. acidocaldarius seems to be able to bear supra-optimal temperatures with a restricted repertoire of chaperones.

[Comparative serologic proteome analysis of Staphylococcus aureus and S. epidermidis exoproteins in prosthetic joint infections].

Aim Of The Study: Staphylococci such as Staphylococcus aureus and S. epidermidis are the most frequently pathogens associated to prosthesis joint infections (PJI), counting for 75% among the isolated bacteria. In this study, we identified PJI-related antigens using two-dimensional immunoblots of S.