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Chromate Binding and Removal by the Molybdate‐Binding Protein ModA
Author(s) -
Karpus Jason,
Bosscher Michael,
Ajiboye Ifedayo,
Zhang Liang,
He Chuan
Publication year - 2017
Publication title -
chembiochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.05
H-Index - 126
eISSN - 1439-7633
pISSN - 1439-4227
DOI - 10.1002/cbic.201700051
Subject(s) - chromate conversion coating , molybdate , hexavalent chromium , chemistry , aqueous solution , inorganic chemistry , organic chemistry , chromium
Effective and cheap methods and techniques for the safe removal of hexavalent chromate from the environment are in increasingly high demand. High concentrations of hexavalent chromate have been shown to have numerous harmful effects on human biology. We show that the E. coli molybdate‐binding protein ModA is a genetically encoded tool capable of removing chromate from aqueous solutions. Although previously reported to not bind chromate, we show that ModA binds chromate tightly and is capable of removing chromate to levels well below current US federal standards.