Hemoglobin vs Myoglobin

Moderators: Chem_Mod, Chem_Admin

Tyler Angtuaco 1G
Posts: 130
Joined: Wed Sep 11, 2019 12:16 am

Hemoglobin vs Myoglobin

Postby Tyler Angtuaco 1G » Fri Nov 29, 2019 3:06 pm

Can someone describe the difference between hemoglobin and myoglobin in terms of their chemical structures or chemical properties?

nicolely2F
Posts: 149
Joined: Sat Sep 14, 2019 12:17 am

Re: Hemoglobin vs Myoglobin

Postby nicolely2F » Fri Nov 29, 2019 3:26 pm

They're both red proteins. A Fe atom bound to 4N forms a heme complex, and a heme complex bound to a protein forms a myoglobin (which transports O2 in muscle cells). Four myoglobin-like molecules exist in each hemoglobin, binding four O2 molecules. That's pretty much everything Prof Lavelle mentioned, so I don't think it's important to know anything else

DHavo_1E
Posts: 118
Joined: Sat Aug 17, 2019 12:17 am

Re: Hemoglobin vs Myoglobin

Postby DHavo_1E » Sun Dec 01, 2019 8:28 pm

nicolely3B wrote:They're both red proteins. A Fe atom bound to 4N forms a heme complex, and a heme complex bound to a protein forms a myoglobin (which transports O2 in muscle cells). Four myoglobin-like molecules exist in each hemoglobin, binding four O2 molecules. That's pretty much everything Prof Lavelle mentioned, so I don't think it's important to know anything else


Hi,
Could you explain what a heme complex is? Thank you. And do myoglobins make up hemoglobin?

nicolely2F
Posts: 149
Joined: Sat Sep 14, 2019 12:17 am

Re: Hemoglobin vs Myoglobin

Postby nicolely2F » Sun Dec 01, 2019 11:37 pm

Hi,
Could you explain what a heme complex is? Thank you. And do myoglobins make up hemoglobin?[/quote]

It's a coordination complex formed by a Fe attached to a porphyrin (a tetradentate ligand). Myoglobins are some of the components making up a hemoglobin


Return to “Shape, Structure, Coordination Number, Ligands”

Who is online

Users browsing this forum: No registered users and 2 guests