What is the function of ovotransferrin?
Ovotransferrin is the second major protein in egg white accounting for 12–13% of the total egg white proteins. It is an iron-binding protein consisting of 686 amino acids. Due to its ability to sequester iron which microbes need for survival, separated ovotransferrin can be used in foods to inhibit microbial growth.
Is ovotransferrin a protein?
OVOTRANSFERRIN, also called conalbumin, is a glycoprotein with a molecular weight of 76,000 daltons. OVOTRANSFERRIN comprises approximately 13% of the protein content of egg albumen….Table: Comparison of Amino Acids Profiles.
| Amino Acids | Lysine |
|---|---|
| Ovotransferrin | 53 |
| Human Transferrin | 51 |
| Bovine Serum Transferrin | 52 |
What is the function of Ovomucin?
Ovomucin maintains the viscosity and structure of egg albumin and thus plays a role in preventing the spread of microorganisms. It inhibits cholesterol uptake and attenuates hypercholesterolemia.
Where does albumin come from in the body?
Endogenous albumin is produced exclusively by liver cells (hepatocytes) at a rate of 9 to 12 g/day. Albumin is transported from hepatocytes by transcytosis. Some hepatocytes have direct access to blood flow in the liver.
Where is Conalbumin found?
Conalbumin is one of the two major types of albumin found in egg white. It comprises approximately 13% of albumen (in contrast to ovalbumin, which comprises 54%.
At what pH is ovotransferrin neutral?
pH 7.40
Decrease in absorption at 465 nm and increase in the fluorescence intensity at an emission wavelength (λem = 330 nm) for an excitation wavelength (λex = 280 nm) subsequent to a rapid pH-jump from neutral (pH 7.40) to acidic (3.2 ≤ pH ≤ 5.6) performed on a holo- or monoferric ovotransferrin.
Is ovalbumin the same as albumin?
Other albumin types A few other proteins are also sometimes called albumins. They are not in the same family as vertebrate albumins: Ovalbumin is a storage protein in egg white (albumen). It is a serpin.
Where is ovalbumin found?
egg white
Ovalbumin (abbreviated OVA) is the main protein found in egg white, making up approximately 55% of the total protein. Ovalbumin displays sequence and three-dimensional homology to the serpin superfamily, but unlike most serpins it is not a serine protease inhibitor.
What is the isoelectric point of Ovotransferrin?
Ovotransferrin is a monomeric glycoprotein consisting of 686 amino acids and 15 disulfide bonds. The molecular weight of ovotransferrin has 76 kDa and an isoelectric point of 6.1.
How big is ovotransferrin compared to egg albumen?
OVOTRANSFERRIN, also called conalbumin, is a glycoprotein with a molecular weight of 76,000 daltons . OVOTRANSFERRIN comprises approximately 13% of the protein content of egg albumen.
How is ovotransferrin similar to other serum transferrins?
The primary sequence of ovotransferrin is similar to that of many serum transferrins found in other species. Recently, scientists have discovered a blood serum transferrin in humans, that binds iron like ovotransferrin and which shows 50% homology to ovotransferrin, i.e., they have similar amino acid composition and carbohydrate content.
What is the binding log of ovotransferrin?
Disulfide groups stabilize the tertiary structures of proteins. Transferrins are iron binding proteins and acute phase reactants of animal serum. It has a binding log of 15 at a pH of 7 or above, meaning that the iron binding capacity of ovotransferrin rapidly decreased at a pH that is less than 6.
What kind of protein is ovotransferrin found in egg?
Ovotransferrin is a potent natural antimicrobial agent as it possesses antibacterial, antifungal, and antiviral properties and is also the major metal binding protein found in egg, which makes it an industrially important protein. Ovotransferrin was extracted from egg white using its metal (iron) binding properties.