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FEBS Lett. 1999 Aug 27;457(2):237-40.

Bromine K-edge EXAFS studies of bromide binding to bromoperoxidase from Ascophyllum nodosum.

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  • 1Fachbereich Biologie, Universit├Ąt Marburg, D-35032, Marburg, Germany.


Bromine K-edge EXAFS studies have been carried out for bromide/peroxidase samples in Tris buffer at pH 8. The results are compared with those of aqueous (Tris-buffered) bromide and vanadium model compounds containing Br-V, Br-C(aliphatic) and Br-C(aromatic) bonds. It is found that bromide does not coordinate to the vanadium centre. Rather, bromine binds covalently to carbon. A possible candidate is active site serine.

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