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What molecule covers active site on globular actin?

Tropomyosin. When Ca2+ ion is not bound to troponin, tropomyosin covers the active site on G(lobular) actin. Answered by, DLT.


Which molecule has a binding site for calcium?

Calmodulin is a calcium-binding protein that has a binding site for calcium ions. It is involved in the regulation of various cellular processes by binding calcium and transducing the signal to downstream effectors.


How do allosteric regulation and competitive inhibition differ in their mechanisms of enzyme regulation?

Allosteric regulation involves a molecule binding to a site on the enzyme that is not the active site, causing a change in the enzyme's shape and activity. Competitive inhibition involves a molecule binding to the active site of the enzyme, blocking substrate binding and enzyme activity.


One binding site on a ribosome holds an mRNA molecule and the other two binding?

sites hold tRNA molecules. The mRNA binding site is where the mRNA molecule binds and is read during translation. The tRNA binding sites are where tRNAs carrying amino acids bind and deliver them to the growing polypeptide chain.


How does allosteric regulation differ from noncompetitive inhibition in terms of their mechanisms of action on enzyme activity?

Allosteric regulation involves a molecule binding to a site on the enzyme other than the active site, causing a conformational change that either activates or inhibits the enzyme. Noncompetitive inhibition involves a molecule binding to a site other than the active site, but it does not cause a conformational change. Instead, it blocks the active site, preventing substrate binding and enzyme activity.

Related Questions

What molecule covers active site on globular actin?

Tropomyosin. When Ca2+ ion is not bound to troponin, tropomyosin covers the active site on G(lobular) actin. Answered by, DLT.


What is a binding site?

The binding site is where a specific binding molecule and a specific receptor protein can combine. This combination can only occur at the binding site. All in the 9th grade text book


Which molecule has a binding site for calcium?

Calmodulin is a calcium-binding protein that has a binding site for calcium ions. It is involved in the regulation of various cellular processes by binding calcium and transducing the signal to downstream effectors.


How do allosteric regulation and competitive inhibition differ in their mechanisms of enzyme regulation?

Allosteric regulation involves a molecule binding to a site on the enzyme that is not the active site, causing a change in the enzyme's shape and activity. Competitive inhibition involves a molecule binding to the active site of the enzyme, blocking substrate binding and enzyme activity.


One binding site on a ribosome holds an mRNA molecule and the other two binding?

sites hold tRNA molecules. The mRNA binding site is where the mRNA molecule binds and is read during translation. The tRNA binding sites are where tRNAs carrying amino acids bind and deliver them to the growing polypeptide chain.


How does allosteric regulation differ from noncompetitive inhibition in terms of their mechanisms of action on enzyme activity?

Allosteric regulation involves a molecule binding to a site on the enzyme other than the active site, causing a conformational change that either activates or inhibits the enzyme. Noncompetitive inhibition involves a molecule binding to a site other than the active site, but it does not cause a conformational change. Instead, it blocks the active site, preventing substrate binding and enzyme activity.


The maltose molecule fits into the blank site of the maltose enzyme molecule?

The active site of the enzyme has a shape that matches the specific shape of the maltose molecule, allowing them to bind together. This binding is important for the catalytic function of the enzyme, which helps break down the maltose molecule into smaller components.


What molecule has a binding site for myosin heads?

Actin is the molecule that has a binding site for myosin heads. This interaction is crucial for muscle contraction as myosin binds to actin and generates force to cause muscle movement.


What unlocks the active site of an actin molecule?

The binding of ATP to actin causes a conformational change that exposes the active site for myosin binding. This allows for the formation of cross-bridges between actin and myosin during muscle contraction.


What is a binding site and why does it have a specific shape?

A binding site is the outer part of the protein that is folded into a unique shape. It has to have this certain shape, otherwise the enzyme and substrate will not fit together. This is called a "lock and key" mechanism.


Which end of tRNA act as the amino binding site?

The 3' end of the tRNA molecule is where the amino acid binds during protein synthesis. This binding occurs through the formation of a specific bond between the carboxyl group of the amino acid and the 3' end of the tRNA molecule.


How does allosteric inhibition differ from competitive inhibition in terms of their mechanisms of action on enzymes?

Allosteric inhibition and competitive inhibition are two ways enzymes can be regulated. Allosteric inhibition occurs when a molecule binds to a site on the enzyme that is not the active site, causing a change in the enzyme's shape and reducing its activity. Competitive inhibition, on the other hand, occurs when a molecule binds to the active site of the enzyme, blocking the substrate from binding and inhibiting the enzyme's activity. In summary, allosteric inhibition affects enzyme activity by binding to a site other than the active site, while competitive inhibition affects enzyme activity by binding to the active site directly.