21.   Bennett proposes that proteins might be like cheaply made locks.

22.   All other food depends on how much protein is required.

23.   Both proteins are present in plasma, but they eluded isolation until last June, when scientists announced they had captured one of them.

24.   But aberrant signaling proteins are just one class of misbehaving components in a cancer cell.

25.   But Aventis put forth new evidence intended to show the protein is not an allergen.

26.   But if the protein is a key player in Type II diabetes, it would be an excellent target for new drugs, Flier said.

27.   But proteomics is far more daunting than genomics, because proteins are more complex than genes and also more plentiful, probably numbering in the hundreds of thousands.

28.   But the protein alone was too weak.

29.   But there are different proteins in different types of cells, in sick versus healthy cells, and even at different stages of life.

30.   But this protein was different, Pruisner said.