Myoglobin

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005199750
Posts: 32
Joined: Fri Sep 28, 2018 12:27 am

Myoglobin

Postby 005199750 » Fri Dec 07, 2018 8:51 pm

"The amino acid histidine binds to the heme complex iron to form myoglobin." Why can four myoglobins form a hemoglobin, and why can myoglobin bind to four O2 molecules?

Chem_Mod
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Joined: Thu Aug 04, 2011 1:53 pm
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Re: Myoglobin

Postby Chem_Mod » Sat Dec 08, 2018 5:41 pm

Hemoglobin by definition is composed of four myoglobins. Myoglobin is a Fe coordination complex that has 5 bonds. Fe prefers to have 6 bonds, and the extra spot can bind a molecule of O2.

Norman Dis4C
Posts: 86
Joined: Sat Sep 28, 2019 12:16 am

Re: Myoglobin

Postby Norman Dis4C » Sun Nov 24, 2019 3:28 pm

Since each myoglobin binds to one O2. 4 myoglobin, which is hemoglobin, should bind to 4 O2.

Mai V 4L
Posts: 55
Joined: Fri Sep 28, 2018 12:23 am

Re: Myoglobin

Postby Mai V 4L » Sun Dec 08, 2019 9:20 am

Will this be on the final?

philipraj_1F
Posts: 52
Joined: Fri Aug 30, 2019 12:16 am

Re: Myoglobin

Postby philipraj_1F » Sun Dec 08, 2019 6:20 pm

Myoglobin can bond to one O2 molecule.

Annie Ye
Posts: 106
Joined: Wed Sep 18, 2019 12:22 am

Re: Myoglobin

Postby Annie Ye » Sun Dec 08, 2019 6:21 pm

hemoglobin is made up of 4 myoglobins. each myoglobin can attach to O2.


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