The tetracycline repressor (TetR) regulates the most abundant resistance mechanism against the antibiotic tetracycline in gram-negative bacteria. The TetR protein and its mutants are commonly used as ...
MYOGLOBIN is a typical globular protein, and is found in many animal cells. Like haemoglobin, it combines reversibly with molecular oxygen; but whereas the role of haemoglobin is to transport oxygen ...