1. Myoglobin By Emily Espinosa

2. Amino Acid Sequence

3. Structure Myoglobin is a single-chain, iron-containing protein found in muscle fibers, structurally similar to a single subunit of hemoglobin. Human myoglobin has 153 amino acid residues in a highly folded and compact structure with eight separate and distinct alpha helical secondary structures. Myoglobin is a single-chain, iron-containing protein found in muscle fibers, structurally similar to a single subunit of hemoglobin. Human myoglobin has 153 amino acid residues in a highly folded and compact structure with eight separate and distinct alpha helical secondary structures.

4. Function Its main function is to carry oxygen molecules to muscle tissues. Its main function is to carry oxygen molecules to muscle tissues. It comprises of a single polypeptide chain and a heme (an iron containing molecule that binds with protein) group, which reversibly binds a molecule of oxygen. This is only relinquished at relatively low external oxygen concentrations, e.x. during strenuous exercise when muscle oxygen demand outpaces supply from the blood. Therefore, myoglobin acts as an emergency oxygen store. It comprises of a single polypeptide chain and a heme (an iron containing molecule that binds with protein) group, which reversibly binds a molecule of oxygen. This is only relinquished at relatively low external oxygen concentrations, e.x. during strenuous exercise when muscle oxygen demand outpaces supply from the blood. Therefore, myoglobin acts as an emergency oxygen store.

5. Uses It is used by humans and any other animal with muscles. It is used by humans and any other animal with muscles.

6. Pics

7. Why I chose myoglobin It sounded interesting and its important for our muscles.

8. Other facts It is found abundantly in the tissues of diving mammals, e.x., the whale, the seal, and the dolphin. High concentrations of myoglobin in these animals presumably allows them to store sufficient oxygen to remain underwater for long periods. It is found abundantly in the tissues of diving mammals, e.x., the whale, the seal, and the dolphin. High concentrations of myoglobin in these animals presumably allows them to store sufficient oxygen to remain underwater for long periods.

9. Work Cited http://www3.interscience.wiley.com:8100/legac y/college/boyer/0471661791/structure/HbMb /hbmb.htm http://www3.interscience.wiley.com:8100/legac y/college/boyer/0471661791/structure/HbMb /hbmb.htm http://www3.interscience.wiley.com:8100/legac y/college/boyer/0471661791/structure/HbMb /hbmb.htm http://www3.interscience.wiley.com:8100/legac y/college/boyer/0471661791/structure/HbMb /hbmb.htm http://www.protasis.com/images/MbRib%20- %20Myoglobin%20W.gif http://www.protasis.com/images/MbRib%20- %20Myoglobin%20W.gif http://www.protasis.com/images/MbRib%20- %20Myoglobin%20W.gif http://www.protasis.com/images/MbRib%20- %20Myoglobin%20W.gif http://themedicalbiochemistrypage.org/images /myoglobin.jpg http://themedicalbiochemistrypage.org/images /myoglobin.jpg http://themedicalbiochemistrypage.org/images /myoglobin.jpg http://themedicalbiochemistrypage.org/images /myoglobin.jpg http://web.virginia.edu/Heidi/chapter5/Images /8883n05_30.jpg http://web.virginia.edu/Heidi/chapter5/Images /8883n05_30.jpg http://web.virginia.edu/Heidi/chapter5/Images /8883n05_30.jpg http://web.virginia.edu/Heidi/chapter5/Images /8883n05_30.jpg