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A protein's structure is determined by:
- the amino acid sequences of its polypeptide chains;
- hydrogen bonds between amino acids in polypeptides;
- other bonds (e.g. hydrophobic interactions, disulphide bridges) between side chains in the polypeptides; and
- the arrangement of polypeptides (in a protein that contains more than one polypeptide)
Scientists have mapped the structures of several proteins; however, scientists are still unsure as to how proteins actually form their final structures.
The function of a protein is directly related to its structure. For example, a protein that fights a certain bacteria might have a shape that allows it to bind to the bacteria and then destroy it.
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What determine the shape and function of a protein?
Conformation is what determines a protein's unique set of functional and otherwise shapes.
What is the functional three-dimensional form of a protein called?
The functional three-dimensional form of a protein is called its tertiary structure. This structure is formed by the folding and interactions of the protein's amino acid chain, which can involve hydrogen bonds, ionic bonds, hydrophobic interactions, and disulfide bridges. The tertiary structure is crucial for the protein's functionality, as it determines the active sites and overall shape necessary for its biological activity.
What determines the specificity of a protein?
The sequence of amino acids determines the specific function of a protein. The shape and structure of the protein determines where in the cell it can go.
What role does the tertiary structure of a protein play in determining its function?
The tertiary structure of a protein is crucial in determining its function because it determines the overall 3D shape of the protein. This shape is essential for the protein to interact with other molecules and perform its specific biological functions. Changes in the tertiary structure can alter the protein's function or render it non-functional.
What specific shape of a protein determines its function?
The specific shape of a protein, known as its tertiary structure, determines its function.
A fully functional molecule of hemoglobin is what kind of protein structure?
The structure of the hemoglobin in a molecule is the quaternary structure.
Why is the sequence of DNA important?
It determines protein structure.
What purpose does the chain on the protein serve?
The chain structure of a protein determines its function. The sequence of amino acids in the protein chain ultimately determines how the protein will fold into its specific three-dimensional shape, which is critical for its functional properties. Additionally, the chain allows the protein to interact with other molecules in the body and carry out its specific biological roles.
Which structure determines the sequence of the building blocks in a protein?
DNA determines the sequence of the amino acids (building blocks) in a protein. The sequence of nitrogen bases in the DNA determines the sequence of amino acids in a protein.
What organelle determines the structural and functional characteristics of the cell by controlling RNA and protein synthesis?
Nucleus
How is tertiary protein structure dependent on primary protein structure?
The relationship between the primary and tertiary structure of a protein is the both have a sequence of amino acids in a polypeptide chain.orThe sequence of amino acids in a primary structure determines its three-dimensional shape ( secondary and tertiary structure)
What determines the specific function of a protein?
The specific function of a protein is determined by its unique sequence of amino acids, which dictates its shape and structure. This structure allows the protein to interact with other molecules in a specific way to carry out functions such as catalyzing chemical reactions, transporting molecules, and supporting cell structure.
