biology

Ovotransferrin

Ovotransferrin is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ovotransferrin rather than just read about it. In short: Ovotransferrin (conalbumin) is a glycoprotein of egg white albumen. Egg white albumen is composed of multiple proteins, of which ovotransferrin is the most heat reliable.

Key takeaways

Ovotransferrin belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ovotransferrin to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ovotransferrin from memory before moving on to harder problems.

Reference excerpt

Ovotransferrin (conalbumin) is a glycoprotein of egg white albumen. Egg white albumen is composed of multiple proteins, of which ovotransferrin is the most heat reliable. It has a molecular weight of 76,000 daltons and contains about 700 amino acids. Ovotransferrin makes up approximately 13% of egg albumen (in contrast to ovalbumin, which comprises 54%). As a member of the transferrin and metalloproteinase family, ovotransferrin has been found to possess antibacterial and antioxidant and immunomodulatory properties, arising primarily through its iron (Fe3+) binding capacity by locking away a key biochemical component necessary for micro-organismal survival. Bacteria starved of iron are rendered incapable of moving, making ovotransferrin a potent bacteriostatic.

Structure Ovotransferrin is folded in a way that forms two lobes (N- and C- terminals) and each lobe consists of a binding site. Each lobe is then divided into two domains of 160 amino acid residues. Its structure also consists of fifteen disulfide crosslinks and no free sulfhydryl groups. 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. This family is also known for their role in cell maturation by transporting essential nutrients to developing embryos. Ovotransferrin functions as an antimicrobial agent and transports iron to the developing embryo. Because they bind to iron, this makes it difficult for harmful bacteria to be nutritionally satisfied with them so it acts as an antimicrobial. The primary sequence of ovotransferrin is similar to that of many serum transferrins found in other species. Ovotransferrin has a single N-linked glycosylation site as asparagine 492. While ovotransferrin identifies with its family, there are two types of ovotransferrin proteins: apo and holo. Apo-Ovotransferrin is deprived of iron and holo-Ovotransferrin is saturated with iron. Because the apo-ovotransferrin is iron-deprived, it is easily destroyed by physical and chemical treatments.

Function and mechanism Biologically, conalbumin isolates and sequesters metallic contaminants in the egg white. Ovotransferrin is functionally and structurally analogous to mammalian lactoferrin A recent study has shown superior performance of ovotransferrin when compared to lactoferrin in its capability to deliver iron without accumulation or inducing gastric irritability, rendering ovotransferrin as an excellent potential iron carrier for the treatment of Iron-deficiency anemia (IDA). Ovotransferrin showed superior physiological iron delivery over lactoferrin in a gastric barrier model. This data holds much promise for ovotransferrin's use in food supplements, with dual functionality as both antimicrobial and iron delivery mechanism.

Role in disease and therapy Numerous studies have identified dual anti-osteoporotic properties of ovotransferrin, both reducing bone resorption and promoting bone formation. Beyond this, ovotransferrin shows promise as a drug carrier with potential applications in cancer treatment. Indeed, ovotransferrin alone is toxic to cancer cells in-vitro. Its antioxidant and anti-inflammatory properties may also make ovotransferrin a viable treatment for cardiovascular disease.

Illustrations

Worked examples

Example 1 — a first encounter with Ovotransferrin

Start with the simplest possible case. Write down what Ovotransferrin claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ovotransferrin before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ovotransferrin ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ovotransferrin

In research: Ovotransferrin appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ovotransferrin in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ovotransferrin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Avian proteins, Blood proteins, Storage proteins, so understanding it makes those chapters shorter.
In everyday life: Look for Ovotransferrin outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Ovotransferrin in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ovotransferrin means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ovotransferrin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ovotransferrin in simple terms?

Ovotransferrin (conalbumin) is a glycoprotein of egg white albumen. Egg white albumen is composed of multiple proteins, of which ovotransferrin is the most heat reliable.

Why does Ovotransferrin matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ovotransferrin?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ovotransferrin.