User:Michael Roberts/BIOL115 Myo

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Myoglobin with oxygen bound to heme (1a6m)
Myoglobin with oxygen bound to heme (1a6m)

The heme group and oxygen binding in myoglobin.

Myoglobin is a protein whose function is to store oxygen in muscle tissues. Like heamoglobin, it is red in colour, and it is myoglobin that gives muscle its strong red colour.

Myoglobin was the first globular protein for which the 3-dimensional structure was solved, back in the late 1950s. It gives its name to the 'globin fold', a common alpha domain motif. An alpha domain is a structural region composed entirley of alpha-helix.

Click on the 'green links' in the text in the scrollable section below to examine this molecule in more detail.

Structure of Myoglobin (PDB entry 1mbo)

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Michael Roberts

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