Since conserved residues usually correspond to functionally important sites of proteins, what might be the function of this highly conserved "H" (histidine, location 87) residue based on its location in the structure?

answer; ///i believe the answer is (antioxidant);

dude i stopped reading after the first 7 words but hey you seem real smart thats awesome have a great day

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

can you make it bigger i can't see it