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What level of protein structure characterized by coils and folds results from hydrogen bonding between carboxyl and amino groups of the polypeptide chain?
Wiki User
∙ 11y ago
I believe it is the secondary level. The secondary level is characterized by coils and folds (called pleats) as the bonds take place.
Wiki User
∙ 11y ago
Wiki User
∙ 11y ago1) hydrogen bonding between polar side groups in the polypeptide chain;
2) cysteine disulfide bridges
Wiki User
∙ 11y agoA long chain of amine acids, bonded by pep-tide bond, twist and fold to form protein.
Wiki User
∙ 10y agoSecondary
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Does carboxyl ionize?
No hydrogen does.
Does carboxyl group do covalent bonds with another carboxyl group?
No. But hydrogen bond can be formed between two carboxyl groups.
Differentiate between secondary and tertiary structure by describing the parts of the polypeptide chain that participates in the bonds that hold together each level of structure?
Secondary tertiary is the R groups interactions that are ionic. The polypeptide chain also has disulfide bond, and hydrophobic interactions.
Does a carboxyl group contain nitrogen?
No. A carboxyl group is made up off carbon, oxygen, and hydrogen.
What is the difference between interchain and intrachain hydrogen bonds in the secondary structure of proteins?
IntrAchain H-bonds stabalize bonds between the same polypeptide chain (alpha-helices). IntErchain- H-bonds stablized between different polypeptide chain. (beta- structures)
Which primarily responsible for the helical structure of a polypeptide chain?
Hydrogen bonding
The backbone of a polypeptide could be represented by?
The backbone of a polypeptide could be represented by a chain of nitrogen and hydrogen atoms. The polypeptide backbone is the key contributor to protein secondary structure, which involves backbone-to-backbone hydrogen bonding.
Betta pleated sheets are characterized by?
folds stabilized by hydrogen bonds between segments of the polypeptide backbone.
Hydrogen bonds between different parts of the polypeptide chain result in which level of protein structure?
Tertiary structure
Some regions of a polypeptide may coil or fold back on themselves?
secondary structure ,hydrogen bonds
Does carboxyl ionize?
No hydrogen does.
What are the forces which create the tertiary structure of a polypeptide?
Four of them are; hydrophobic and hydrophilic interactions, hydrogen bonding and disulphide bridging.
Does carboxyl group do covalent bonds with another carboxyl group?
No. But hydrogen bond can be formed between two carboxyl groups.
Differentiate between secondary and tertiary structure by describing the parts of the polypeptide chain that participates in the bonds that hold together each level of structure?
Secondary tertiary is the R groups interactions that are ionic. The polypeptide chain also has disulfide bond, and hydrophobic interactions.
Does a carboxyl group contain nitrogen?
No. A carboxyl group is made up off carbon, oxygen, and hydrogen.
What is the level of protein structure that describes all aspects of the three-dimensional folding of a polypeptide?
Primary: Simple string of amino acids called a polypeptide. Secondary: The varied hydrogen bonding of the side chains resulting in alpha helixes and beta sheets. Tertirary: The R group bondingd; hydophobic, hydrophilic, hydrogen bonding and disulfide bonding, which results in the globular, actual protein. Quarternary: The construction of multi protein subunits from tertiary structure. Such as hemeglobin.
What must be done to a polypeptide chain to make it a functioning protein?
A protein becomes functional only when it folds itself into a three dimensional form or tertiary structure. More information - All amino acids have the same basic structure - an amino group, a carboxyl group and a hydrogen atom but they differ due to the presence of the side chain. The sequence of amino acids in a protein determines it's primary structure
