Now an international team of researchers has analysed the proteins found in 100 different species — from bacteria and archaea to plants and humans. It is the largest protein mapping ever to be conducted across different species. They have learned that these life forms in fact have a number of common characteristics. In all these life forms, a large share of the proteins focus on metabolism and on maintaining a protein balance. A common characteristic of all these life forms is the fact that a high percentage of their proteomes focus on maintaining a sort of balance, what is called as homeostasis. Another common characteristic is the fact that a large share of the proteins help to generate energy. Even though the ways in which this is done differ — from photosynthesis to carbohydrate burning.
— source University of Copenhagen The Faculty of Health and Medical Sciences | Jun 17, 2020