introduction to proteins

An overview

Protein Function

Protein Function

Structural support – collagenStorage – albumin (egg white) Transport – hemoglobinHormonal – insulinReceptor – nerve cell receptorsContractile – actin & myosinDefensive – antibodiesEnzymatic – digestive enzymes

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

Storage: Albumin

http://160.114.99.91/astrojan/protein/pictures/albumin.gif

Storage: Albumin

http://www.newcenturypharm.com/picts/albuminrotate.gif

Transport: Hemoglobin

http://www.sdsc.edu/IOTW/week26/hemoglobin_group.jpg

Transport: Hemoglobin

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

Transport: Hemoglobin

http://www.sdsc.edu/IOTW/week26/hemoglobin_group.jpg

Hormonal: Insulin

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

Receptor: Nerve Cell Receptors

http://kvhs.nbed.nb.ca/gallant/biology/synapse.jpg

Contractile: Actin & Myosin

http://legacy.owensboro.kctcs.edu/gcaplan/anat/notes/api%20notes%20j%20%20muscle%20contraction.htmhttp://www.artwiredmedia.com/elements/muscle.jpg

Defensive: Antibodies

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

Defensive: Antibodies

http://www.mimetibody.com/Antibody.gif

Enzyme: Lysozyme

binds molecules on surface bacteria and destroys them

present in sweat, tears, saliva

Fig. 5.17