Abstract:Tetraphenylporphyrin (TPP) is a synthetic porphyrin whose properties can be readily modified, endowing it with significant benefits over naturally occurring porphyrins. Yet, their insolubility in water and/or steric bulk have rendered them incompatible with biological systems. Herein, we report the first example of a native biomolecule capturing TPP as well as its derivatives. The haemoprotein HasA, secreted by certain pathogens to scavenge haem from their hosts, can capture various metal- and meso-substituted… Show more
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