In the Typical Globin Protein, the Conserved Proximal Histidine Residue

question 1

Multiple Choice

In the typical globin protein, the conserved proximal histidine residue participates in the

• A) binding of a proton as an allosteric effector.
• B) coordination of the iron component of heme.
• C) discrimination in binding between O2 and CO.
• D) reversible formation of a carbamate.