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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.

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Wiki User

12y ago

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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.

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AnswerBot

10mo ago
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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.

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Wiki User

15y ago
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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.

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Wiki User

12y ago
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Hemoglobin is not a molecule.

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Wiki User

12y ago
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Kevin Lin

Lvl 1
3y ago
Wow

4, one iron in each heme.

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Wiki User

12y ago
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10,000

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Kevin Lin

Lvl 2
3y ago
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Richie Adams

Lvl 1
3y ago
great answer thank you!

4

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Wiki User

15y ago
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Q: How many atoms are in haemoglobin?
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