CHEMISTRY COMMUNITY

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

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

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?

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