Protamine

Protamine is a member of a group of simple proteins that are capable of forming complexes with nucleic acids called nucleoproteins.

Main properties and uses of protamine:

  1. Protamine has a high affinity for DNA, with which it forms stable nucleoprotein complexes. This property is used to isolate and purify DNA.

  2. Due to its ability to neutralize negative charges on the DNA molecule, protamine is used to condense and stabilize DNA in genetically engineered constructs.

  3. In medicine, protamine is used in combination with insulin and zinc to create a long-acting protamine-zinc-insulin drug. This insulin is absorbed much more slowly than usual, which allows you to reduce the frequency of injections.

Thus, protamine’s unique ability to bind and stabilize DNA determines its widespread use in biotechnology and medicine.



In this article we will look at protamine, a simple protein that can bind to nucleic acid and form a nucleoprotein. Protamine is one of the components of extended-release insulin - a complex of protamine, insulin and zinc, which is used to treat diabetes mellitus.

Protamine is a group of simple proteins with a molecular weight ranging from 6 to 20 kDa. It can bind to DNA and RNA, as well as other proteins, forming complexes that have unique properties.

One of the main properties of protamine is its ability to bind zinc ions. When bound to zinc, protamine forms a complex that has a longer half-life and can be used to create long-acting insulin.

When introduced into the body, protamine cincinulin is absorbed more slowly than regular insulin. This allows you to reduce the frequency of insulin administration, which is very important for patients suffering from diabetes.

Although protamycin has several advantages over other forms of insulin, it is still a relatively new drug on the market and is not suitable for all patients. Therefore, before using protamycin, you should consult your doctor and strictly follow his recommendations.



Protamine is a protein that is present in the blood of animals, fish and some plants. It has a complex composition and performs many functions in the body. They are complex proteins; they are monomers of other protein compounds. That is why they are called proteinoid molecules. Scientists have isolated types of protamine derivatives from nucleic acids, DNA, RNA, and blood cells. Getting into the blood during injections, the proteins that make it up bind protein molecules, so that insulin remains in the blood vessels for a long time and restores its functions.