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Mechanisms of ligand discrimination by heme proteins

  • Rinku Jain
  • Michael K. Chan
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Abstract.

Several classes of heme proteins have been identified whose primary role is to sense and transport one of the three gaseous ligands: O2, NO, or CO. A common feature shared by all of these proteins is the need to not only recognize its target ligand, but also discriminate against other heme ligands of similar size and shape. This review describes the mechanisms that each class of heme protein sensor and transporter utilizes to promote this discrimination. The common factors utilized in the recognition of each ligand are discussed.

Heme-protein Discrimination and recognition 

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Copyright information

© SBIC 2002

Authors and Affiliations

  • Rinku Jain
    • 1
  • Michael K. Chan
    • 1
  1. 1.Departments of Biochemistry and Chemistry, and the Ohio State Biophysics Program, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210

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