Combined Protein which is a Protein Composed and Non-Protein Groups
Combined protein which is a protein composed of proteins and non-protein groups. This group is called a prosthetic group and consists of carbohydrates, lipids or nucleic acids:
Posferoprotein:
contains folic acid groups which are bound to the hydraulics of serine and theroin. Lots found in milk and egg yolks.
Lipoprotein:
contains fatty acid lipids, listin. So that it has the capacity as a good emulsifying agent, found in eggs, milk and blood.
Nucleoprotein:
a combination of nucleic acids and proteins. For example: mucin in saliva, ovomucin in eggs, nucleoid in serum.
Chromoprotein:
combination of proteins with pigmented groups which usually contain metal elements. Example: hemoglobin, myglobulin, chlorophyll and flavoprotein.
Metalloprotein:
is a major complex between proteins and metals as well as chromator protein. Example: ferritrin (containing Fe), coalbumin (containing CO and Zn).
Also Read Articles That May Be Related: "Nucleus (Core Cell)" Definition & (Structure - Function)
Globulin
Soluble in neutral salt solution, but not soluble in water. Coagulated by heat and will settle to a high concentration of salting solution (salting out) in the body there are many antibodies and fibrinogen. In milk there is in the form of lactoglobulin, in eggs ovoglobulin, in the meat of myosin and acitin and in soybeans called glycillin or generally in legumes called legumin.
Glutelin
Soluble in dilute acids and bases, but not soluble in neutral solvents. Example: gluten in wheat and oryzenin in rice.
Prolanin
Soluble in ethanol 50-90% and insoluble in water. This protein contains a lot of proline and glutamic acid, and there are many in the serelia. For example: zein in corn, gliadin in wheat, and cordurine in barley.
Scleroprotein
Insoluble in water and neutral solvent and resistant to enzymatic hydrolysis. This protein functions as a protective structure in humans and animals. Examples of collagen, elastin, and keratin.
Histones
Is a basic protein, because it contains lysine and arginine. Is soluble in water and will be clotted by ammonia.
Globulin
Almost the same as histones. Globulin is rich in arginine, tryptophan, histidine but does not contain isoleucines found in the blood (hemoglobin).
Protein
A very simple protein, BM is relatively low (4000-8000), rich in arginine, soluble in water and coagulated by heat and is basic.
Simple proteins according to their molecular shape are divided into 2 groups, namely:
Fiber protein (= skleroprotein = albumoid = skrelin)
Fibers are long and are bound together as fibrils by hydrogen bonds. Insoluble in water, so this lack of solution results in strong intermolecular forces. For example, keratin (hair, nails, feathers, horns), in kalogen (connective tissue), fibroin (silk) and myosin (muscle).
These fibrous proteins are fibrous; insoluble in dilute solvents, either salt, base or alcohol solutions. The molecule consists of a long chain of molecules, parallel to the main chain, does not form crystals and when pulled extends back to its original shape. The function of this protein is to form the structure of materials and tissues, for example keratin in the hair. This protein molecule consists of several polypeptide chains that extend and are connected to each other by several cross bonds to form a stable fiber or fiber. Its large molecular weight cannot be determined with starch and is difficult to be purified.
Globural protein
Globural protein shaped like a ball, found in many animal ingredients (milk, meat, eggs). This protein dissolves easily in salts and dilute acids and is easily changed due to the influence of temperature, concentration of salt, acids and bases and is easily denatured. Globular proteins are generally round or elliptical and consist of the polypeptide chains involved.
Types of Protein
In these proteins there are types or kinds of proteins that are divided into 3 parts, including the following:
Types of Protein Based on Function
Protein based on its function consists of 3 types, including the following:
Perfect Protein
Perfect protein is a protein which contains a complete amino acid. That perfect protein is generally found in animal protein.