Which amino acid in hemoglobin is involved in coordinating iron in addition to the heme prosthetic group?
A) Tyr
B) Glu
C) His
D) Val
E) Cys

Question

Quizplus · Accepted Answer

Histidine (His) is the amino acid in hemoglobin that coordinates with iron in addition to the heme prosthetic group. This coordination between histidine and iron is what allows for oxygen to bind to hemoglobin and be transported throughout the body.

Which Amino Acid in Hemoglobin Is Involved in Coordinating Iron