How many atoms are in haemoglobin?

Answer 1

Hemoglobin is a protein with 4 sub-units, each with a heme group that contains one iron atom in it. The iron atom is bound to the heme group by the four nitrogens in the center of the heme, and a histidine that lies beneath the heme group. That leaves a sixth binding site open on the iron to bind an oxygen.

Answer 2

A single haemoglobin molecule consists of four globin protein chains and four heme groups. Each heme group contains an iron atom. So, a haemoglobin molecule contains a total of four iron atoms along with many carbon, oxygen, hydrogen, and nitrogen atoms in the protein chains.

Answer 3

I'd be interested to know, myself.

It weighs ~ 64000 da. So at a REALLY rough guess, I'd say about 7500 atoms, just to give a picture. Please do update the answer if anybody knows/can find this.

Answer 4

Hmmm, you know that's a strange thing that scientists have been trying to figure out. Recently, they discovered that there were probably about 65-75 atoms in hemoglobin. Though the atoms aren't different, they're in large clusters.

Answer 5

Hemoglobin is not a molecule.

Answer 6

4, one iron in each heme.

Answer 7

10,000

Answer 8

4