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On each surface of enzyme there are detachable cofactor (non-protein portin of enzyme) called activators. Activators are metal ions.
Enzymes are proteins and literally fold into a specific 3d structure, to make space for an active site (also called activators). Active site has a shape that fits with specific substrate molecules.
The enzyme and substrate form a temporary enzyme-substrate complex.
Enzymes are flexible structures.
When enzyme and substrate bind together, the shape of enzyme molecule undergoes slight change.
This produces strain in chemical bond in the substrate molecules and as a result these bonds break and bonds are formed. These stresses encourage a link between two substrstes leading to the formation of a different molecule.
As the result of the chemicl interactions within the active sites a new chemical compound is formed. The new chemical compound is called product.
This product is released from the active site, the enzyme assumes its orignal shape and is free to work again.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoMetal ions act as cofactors in enzyme catalysis. They often help in d binding of enzyme to its various ligands thereby stabilizing the enzyme structure.
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Difference between activator and prosthetic groups?
Prosthetic groups can be as simple as a single metal ion bound into the enzyme's structure, or may be a more complicated organic molecule (which might also contain a metal ion). it is permanently bonded to enzyme. Activator is only metal ion that is detachable. source:chemguide.co.uk Stuffidious.com
What is a metal ion?
A metal ion is an ion made out of metal. the metal ion in Na 2 S is Sodium
An ionic bond is the attration between?
A non-metal ion and a metal ion
What is metal ion toxicity?
The metal ion toxicity refers to the certain forms and doses of the metal ions on life.
Is iodine a metal or non-metal and what ion does it form?
Iodine is a nonmetal and it forms the iodide ion, I-.
What are the four mechanisms that get substrates to the transition state?
The four mechanisms that get substrates to the transition state are: Acid-base catalysis, where protons are transferred between the enzyme and substrate to stabilize the transition state. Covalent catalysis, where the enzyme forms a transient covalent bond with the substrate to lower the activation energy. Metal ion catalysis, where metal ions in the active site of the enzyme participate in the catalytic reaction. Catalysis by proximity and orientation, where the enzyme brings the substrates in close proximity and in the correct orientation to facilitate the reaction.
Difference between activator and prosthetic groups?
Prosthetic groups can be as simple as a single metal ion bound into the enzyme's structure, or may be a more complicated organic molecule (which might also contain a metal ion). it is permanently bonded to enzyme. Activator is only metal ion that is detachable. source:chemguide.co.uk Stuffidious.com
Are there any metal elements in salt?
All inorganic salts are composed of a metal ion (or an ammonium ion) and an acid radical ion. Table salt for example is composed of a sodium ion and a chlorine ion (the radical ion of hydrochloric acid).Organic salts (called esters) may or may not contain a metal ion. Organic salts that do not contain a metal ion, its role is taken by an alkaloid radical ion.
What is a metal ion?
A metal ion is an ion made out of metal. the metal ion in Na 2 S is Sodium
Is an oxyanion named based on the amount of a metal in the ion?
No, the name of an oxyanion is not based on the amount of a metal in the ion. The name of an oxyanion is determined by the oxidation state of the element and the number of oxygen atoms in the ion. The metal in the ion may play a role in determining the charge or oxidation state of the element, but it does not directly determine the name of the oxyanion.
An ionic bond is the attration between?
A non-metal ion and a metal ion
Is sulfate a metal?
Sulfate is a negative ion with the formula SO42- in order to balance the charge there needs to be a positive ion, which usually is a metal ion, but not always. However, the sulfate ion itself is not a metal nor does it contain a metal.
What is metal ion toxicity?
The metal ion toxicity refers to the certain forms and doses of the metal ions on life.
What compound consist of a positive metal ion and a negative metal ion?
sodiumtetrahydoxylaluminate(Na(alOH4))
Is iodine a metal or non-metal and what ion does it form?
Iodine is a nonmetal and it forms the iodide ion, I-.
Is bromate a metal?
No, bromate is not a metal, but is an ion
What is the role of Mg ion in activation of restriction enzyme?
most restriction enzymes require magnesium ions for their activation, local restriction enzyme activity can be controlled by the local concentration of magnesium ions. Applying a direct current (dc) voltage to a needle electrode of metallic magnesium made it possible to control the local magnesium ion concentration at the tip of the needle. The restriction enzyme was activated only when magnesium ions were electrochemically supplied.
