1. Protein Function
An overview

2. Protein Function
 Structural support – collagen
 Storage – albumin (egg white)
 Transport – hemoglobin
 Hormonal – insulin
 Receptor – nerve cell receptors
 Contractile – actin & myosin
 Defensive – antibodies
 Enzymatic – digestive enzymes

3. Structural: Collagen
http://www.fei.com/uploadedImages/Images/Image_Gallery/collagen_fibrils_from_knee_joint_capsule_157_lg.jpg http://www.orthoteers.com/images/uploaded/collagen1.jpg

4. Storage: Albumin
http://160.114.99.91/astrojan/protein/pictures/albumin.gif

5. Storage: Albumin
http://www.newcenturypharm.com/picts/albuminrotate.gif

6. Transport: Hemoglobin
http://www.sdsc.edu/IOTW/week26/hemoglobin_group.jpg

7. Transport: Hemoglobin
http://www.bio.davidson.edu/Courses/Molbio/MolStudents/spring2005/Heiner/hemoglobin_ribbon_4subunits.jpg

8. Transport: Hemoglobin
http://www.sdsc.edu/IOTW/week26/hemoglobin_group.jpg

9. Hormonal: Insulin
http://optimumhealthvitamins.com/Portals/0/insulin%20function.jpg http://upload.wikimedia.org/wikipedia/commons/5/57/Human-insulin-hexamer-3D-ribbons.png

10. Receptor: Nerve Cell Receptors
http://kvhs.nbed.nb.ca/gallant/biology/synapse.jpg

11. Contractile: Actin & Myosin
http://www.artwiredmedia.com/elements/muscle.jpg http://legacy.owensboro.kctcs.edu/gcaplan/anat/notes/api%20notes%20j%20%20muscle%20contraction.htm

12. Defensive: Antibodies
http://iahealth.net/wp-content/uploads/2009/09/antibodies.bmp http://www.biology.arizona.edu/immunology/tutorials/antibody/graphics/antibody.gif

13. Defensive: Antibodies
http://www.mimetibody.com/Antibody.gif

14. Enzyme: Lysozyme
 binds molecules on surface bacteria and
destroys them
 present in sweat, tears, saliva
Fig. 5.17