Hemoglobin - shape and function

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Ananta3G
Posts: 62
Joined: Wed Sep 18, 2019 12:19 am

Hemoglobin - shape and function

Postby Ananta3G » Wed Dec 04, 2019 10:34 am

Hi! Can someone explain how I would describe the shape of hemoglobin? Is it chelating? Is there a polydenate ligand? How do I know? And how does this shape relate to its function? How many O2s can one hemoglobin molecule bind? Thanks!

Ashley Tran 2I
Posts: 108
Joined: Thu Jul 11, 2019 12:17 am

Re: Hemoglobin - shape and function

Postby Ashley Tran 2I » Wed Dec 04, 2019 11:08 am

Hemoglobin is four myoglobins. It binds to 4 oxygen molecules and transports the O2. Therefore, it is a polydentate ligand. I don't believe it is chelating.

Rebecca Epner 4A
Posts: 53
Joined: Sat Aug 17, 2019 12:18 am

Re: Hemoglobin - shape and function

Postby Rebecca Epner 4A » Wed Dec 04, 2019 11:55 am

The central component of hemoglobin, heme, is chelating. This is also called the porphyrin ligand. (We drew a picture of it in lecture)


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