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What is the relationship between the function and structure of a protein?
Wiki User
∙ 8y ago
Proteins are composed of amino acids, each of which have their own special properties. The non-polar amino acids would fold into the interior of the protein during protein folding, because they are hydrophobic. A protein consists of a primary structure, which consists of the amino acid chain. The secondary structure is how the amino acids join together into alpha helices and beta pleated chains and form hydrogen bonds. The tertiary structure is when disulphide bridges form, which maintain the protein's 3D shape, and the 3D shape begins to emerge. The quaternary structure is an assortment of several polypeptides, and constitutes the entire protein. The final shape of the protein determines its function.
For example an enzyme carry out catalytic functions are mainly accomplished by it's catalytic core residues(place where substrate binds). when the 3D structure of protein is properly made(folded) then it is active, when a single residue is mutated or any improper folding leads to the enzyme either hyperactive, poorly active or inactive.
Wiki User
∙ 8y ago
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A protein's function is dependent on its?
Structure or Shapetype and other of amino acids
The function of a cell depends primarily on?
structureThe shape of the protein will determine the cell. It will also determine the function of the cell.
What determines the specific function 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.
Which molecules coded by genes on chromosomes determine cell structure and function?
Genes copied from DNA are copied to RNA in a process called transcription. The RNA transcripts are then used in a process called translation, in which a code that determine the sequence of amino acids is translated to form a protein. The structure of the resulting protein determines the role of the protein in body structure and function...and ultimately, the structure and function of the body.
What is the relationship between proteins and defects?
I don't have much time to answer this, but here's a quick answer. When a mutation occurs in the DNA or mRNA processing in an organism, it causes the protein to be transcribed in an abnormal form and will have an improper secondary and tertiary structure for the function it is supposed to serve. This results in a defect in the organism.
Give an example of the relationship between structure and function?
One example of the relationship between structure and function is found in enzymes as their function is dependent upon its structure. Enzymes are catalytic proteins that speed up a reaction without being consumed. Their protein structure enables them to recognize their substrates, even among isomers, thus allowing them to catalyze very specific reactions. The interactions between a protein's primary structure, its amino acid sequence, determine its secondary structure of hydrogen bonded alpha and beta pleated sheets. The side chains of the amino acids help determine the next superimposed structure, the tertiary structure and the quaternary structure if the protein has one. A protein's conformation enables it to form an active site whose shape is compatible with that of the substrate. Once the substrate enters the active site, the enzyme's structure is altered as induced fit moves the active site's chemical groups into positions that enhance their ability to catalyze the chemical reaction, thus improving the enzyme's function. An enzyme's structure is so closely correlated to its function that even a slight change in a protein's primary structure can affect its conformation and ability to function. For example, although noncompetitive inhibitors bind to the enzyme away from its active site, they alter the enzyme's conformation so that the active site no longer has the right structure to bind with the substrates, preventing it from functioning correctly.
Does amino acids affect protein functions?
The sequence of amino acids affects protein function. The three-dimensional structure of a protein determines its function. The three-dimensional structure of a protein is determined by the sequence of its amino acids.
Why does the structure of a protein or enzyme determine its function?
Yes.
A protein's function is dependent on its?
Structure or Shapetype and other of amino acids
The function of a cell depends primarily on?
structureThe shape of the protein will determine the cell. It will also determine the function of the cell.
The order of amino acids is a protein's?
The order of amino acids in a protein determines its structure and function.
Why is acid sequence of a protein of the ultumate importance?
The amino acid sequence determines the three-dimensional structure of a protein, which determines the function of the protein. If the amino acid sequence is incorrect, due to a genetic defect, the three-dimensional structure of the protein may be so disrupted as to not function properly, or not function at all.
What sequence best represents the relationship between DNA and the traits of an organism?
DNA base sequence amino acid sequence protein shape protein function trait
How does DNA sequence determine protein function?
DNA sequences do not determine the function of any protein. DNA sequences determine the structure of the protein. That is particular amino acid sequence in protein only.
What does ribosomes do and what happen if its function?
Ribosomes are a cell structure that makes protein
What determines the specific function 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.
Definition structure function and biogenesis of microfilament?
The definition of a microfilament is a stringy protein found in most cells. The structure of a microfilament is a long, thing string-like protein and its function is to help the cell move. The biogenesis of a microfilament is a protein called actin.
