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Does oxytocin have a secondary structure or tertiary protein structure?
Wiki User
∙ 14y ago
Yes it does. It also commonly contains quaternary structure.
Secondary structure refers to folding and bonding interactions between atoms of the polypeptide backbone, either forming alpha-helices or Beta-sheets. Oxytocin contains both of these secondary structures as well as Beta-turns. Beta-sheets come in anti-parallel and parallel versions. Parallel means that the direction of the associated chains run in the same direction; N-terminus to C-terminus. Anti-parallel means that one or more of the associated chains run in an opposite direction to the others.
Tertiary structure refers to interactions between side chains of the polypeptide residues. a good example of this is the disulfide bonds liking two cysteine residues which does occur in Oxytocin.
Quaternary structure refers to association of separate polypeptide chains. Oxytocin can be found as a single chain in which case there is no quaternary structure. It is not uncommon however to find it as a pentamer, tetramer, or dimer. Conditions play a major factor in effecting its quaternary structure. whether it is in aqueous solution, biological conditions (cells), or crystallized. Another good example of quaternary structure is Hemoglobin. Hemoglobin is a dimer of dimers. 2 alpha-globin chains and 2 beta-globin chains.
Wiki User
∙ 14y ago
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What is it called when a protein folds back onto itself?
a. tertiary structure b. primary structure c. secondary structure d. tertiary structure pick your best answer
Is the secondary structure more polar than the linear amino acid sequence?
Protein tertiary structure is 3-D. Secondary structure is 2-D or linear. I. e. the linear a-a sequence is the secondary structure. Amino-acid monomers comprise the primary structure.
The final three dimentional shape of a protein is?
It is called the tertiary structure of a protein. 'Clumping' two or more tertiary protein structures together yields the quaternary form, or shape.
What is the biological effect of denaturation of proteins?
denaturation causes loss in biological activity of the protein. It does not change the primary structure of the protein but results from rearrangement of secondary and tertiary structures
What is the tertiary structure for a protein?
'The Quaternary structure of a protein is the 4th level of folding for a protein. An example of this would be a red blood cell, which is a quaternary structure, it is made up of alpha helicies and also beta pleated in the tertiary structure. The Quaternary structure of a protein contains 4 tertiary structures in it.
What are the four levels of protein structure?
primary, secondary, tertiary, and quaternary
Differentiate the four types of protein structure?
There are four types of protein structure. These include primary structure, secondary structure, tertiary structure, and quaternary structure. Primary structure is the amino acid sequence. Secondary structure is the shape of the molecule. Tertiary structure is the interaction between groups. Quaternary structure is the interactions between protein subunits.
Which levels of structural organization are lost when a protein is denatured?
The secondary and tertiary structures.
What is the teritary structure of a protein?
The tertiary structure of a protein is just how a polypeptide folds up into a "glob" or a "pretzel-like" shape. Primary structure determines secondary and tertiary structure of a protein. Usually a tertiary protein is held together Disulfide bonds like those found in a Cysteine residue.
What is it called when a protein folds back onto itself?
a. tertiary structure b. primary structure c. secondary structure d. tertiary structure pick your best answer
What is the level of protein structure is the amino acid sequence of the protein?
Quaternary tertiary secondary primary is the sequence.
What aspect of protein structure are stabilized or assisted by hydrogen bonds?
secondary, tertiary, and quaternary structures, but not primary structure
Why protein is called primary structure?
Proteins *have* primary, secondary, tertiary, and quarternary structures. The primary structure is simply the chain of amino acids without any other structure. Secondary structure results from folding of the chain to form rudimentary structures such as alpha helices, beta sheets and turns. Tertiary structure results from the further folding of the protein with secondary structures into different 3D shapes by interactions between different parts of the secondary structure. Quarternary structure results from different proteins with tertiary structures coming together to form a protein complex.
Why is secondary called secondary?
Proteins *have* primary, secondary, tertiary, and quarternary structures. The primary structure is simply the chain of amino acids without any other structure. Secondary structure results from folding of the chain to form rudimentary structures such as alpha helices, beta sheets and turns. Tertiary structure results from the further folding of the protein with secondary structures into different 3D shapes by interactions between different parts of the secondary structure. Quarternary structure results from different proteins with tertiary structures coming together to form a protein complex.
Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?
Tertiary structure
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)
Does a helix refer to a protein's tertiary structure?
All of them. Tertiary is the overall 3D shape of the protein Quaternary is what proteins it is attached to and how Primary is the actual order of the amino-acids which make up the chain Secondary is the way that that chain coils or folds So 'helix' refers to the coiling of the chain. Hence it is the secondary structure.
