Kulsoom Classification is based on Composition Shape Function Proteins & their Classification 5 http://njscuba.net/zzz_artifacts/protein_2.gif
Kulsoom 1.Simple proteins: A protein that contains amino acids only. Examples: albumin, globulins & histones. 2.Conjugated Proteins: A protein that have some non-protein moiety in its structure along with protein part. 3.Derived proteins: Proteins derived from simple and conjugated proteins by physical or chemical treatment. Examples: peptones peptides and denatured proteins. Classification Based on Composition 6
Kulsoom Proteins gives our cells shape, strength as well as enable movements. Proteins examples: keratin, collagen, elastin. Structure Examples: Hair, wool, nails, horns, hoofs, tendons, cartilage. 18 Structural Proteins
Kulsoom Contractile Proteins Proteins examples: Actin & myosin Location in body: Contracting fibers in muscle. http://www.performance-edu.com/Insider%20News/Volume%202/Images/small%20animated%20sliding%20filament.gif 19 http://www.123rf.com/photo_7661491_young-man-running-in-forest.html
Kulsoom Storage Proteins Proteins examples: Different for different sustances. Ferritin (Stores iron in spleen) legumes and beans in plants 20 Protein examples: hemoglobin (Carries oxygen in blood) serum albumin (Carries fatty acids in blood) Transport Proteins http://blu.stb.s-msn.com/i/44/78A5F212E699FFFB5345C2214AE50.jpg
Kulsoom Proteins as Enzymes Many proteins act as biological catalysts or enzymes. Thousands of different enzymes exist in the body. Examples: catalase, amylase, trypsin, lipase. 21 http://www.biology.arizona.edu/immunology/tutorials/antibody/graphics/antibody.gif Bacterium Antibody Proteins examples: Gamma globulins when a pathogen enters the body, the immune system produces antibodies against it that fight against the invader. http://www.microbiologyonline.org.uk/about-microbiology/microbes-and-the-human-body Immunological Proteins
Kulsoom Proteins as Buffers Example: Plasma proteins and intracellular preoteins. 22 http://human-physiology---ashley-vg.wikispaces.com/Chemical+Aspects+of+Physiology
Kulsoom Maintaining Osmotic Pressure 23 Protein examples: Albumin, globin, globulin. Protein as Hormone http://www.hcc.bcu.ac.uk Hormone Examples: Insulin, glucagon, growth hormone etc.
Kulsoom Channels: Protein pores that run like tunnels across the lipid bilayer will allow specific materials that we need, like glucose, to slip through the membrane. Receptors: proteins that mediate the effects of hormones in side the cell. Protein Channels & Receptors 24 Cell cytoskeleton Examples: Microfilaments, intermediate filaments & microtubules.
Kulsoom 25 Clotting Factors Clotting proteins activate and make meshwork of fibrin to stop bleeding. Examples: Factors I, II, III, IV, V etc. http://media-3.web.britannica.com/eb-media//28/98328-050-4F03CFD9.jpg http://www.buzzle.com/img/articleImages/323361-36236-16.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/
Kulsoom Type of protein ExampleFunction Structural proteins keratin, collagen Hair, wool, nails, horns, hoofs, tendons, cartilage Contractile proteins actin, myosin Contracting fibers in muscle Transport proteins hemoglobin serum albumin Carries oxygen in blood Carries fatty acids in blood Storage proteins ferritinStores iron in spleen Hormones insulin, glucagonRegulates use of blood sugar Immunological proteins antibodiesRid the body of foreign proteins Enzymes amylasePromotes the break down of starch to the simple sugar glucose. Toxins neurotoxinCobra venom blocker of nerve functions 26