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The alpha-helix will plays an important role in terms of the shape and structure of the final protein. Since it orientates the amino acids, such as the functional group (or R group) facing the outside, then the properties of the amino acids will be the properties of the protein in that area. If the properties of the amino acids in an alpha helix are hydrophobic, then that protein will be hydrophobic in that area.
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Which direction does the alpha helix twist predominantly in proteins: right-handed or left-handed?
In proteins, the alpha helix predominantly twists in a right-handed direction.
What are the differences between a right-handed alpha helix and a left-handed alpha helix in protein structures?
The main difference between a right-handed alpha helix and a left-handed alpha helix in protein structures is the direction in which the helix twists. In a right-handed alpha helix, the helix twists in a clockwise direction, while in a left-handed alpha helix, the helix twists in a counterclockwise direction. This difference in twisting direction affects the overall shape and stability of the protein structure.
How does collagen helix differs from alpha helix?
A collagen helix is less compact (because it goes into triple helices), and it is a left-handed helix. An alpha helix is more compact and hence requires more rotation of bonds to form (hence proline is not very common...has an imidazole ring). It is a right-handed helix, and goes into double helices instead.
What can form a structure such as a helix or a sheet?
Proteins can form structures such as a helix or a sheet due to the specific arrangement of amino acids in their sequence. The hydrogen bonding between the amino acids in the polypeptide chain determines the secondary structure of the protein, leading to the formation of helices and sheets.
When did Linus Pauling discover the structure of a protein?
Linus Pauling was one of the first to propose the alpha helix structure of proteins in 1951. His work on the structure of proteins paved the way for our understanding of their function and importance in biology.
Which direction does the alpha helix twist predominantly in proteins: right-handed or left-handed?
In proteins, the alpha helix predominantly twists in a right-handed direction.
What are helix proteins?
There are no known proteins such as helix proteins. Alpha helix is a secondary structure element found in proteins that formed by amino acids which can form helix. Other secondary structures are beta sheets and random coils.
What are the differences between a right-handed alpha helix and a left-handed alpha helix in protein structures?
The main difference between a right-handed alpha helix and a left-handed alpha helix in protein structures is the direction in which the helix twists. In a right-handed alpha helix, the helix twists in a clockwise direction, while in a left-handed alpha helix, the helix twists in a counterclockwise direction. This difference in twisting direction affects the overall shape and stability of the protein structure.
What type of helix forms RNA?
Alpha helix
What kinds of proteins can be found in cell membranes?
There are two kinds of proteins in a cell membrane: peripheral PROTEINS OR trans membrane proteins. Cell membranes are able to perform various functions only because of different membrane protein functions. Most of the membrane proteins have alpha helix structure.
How does collagen helix differs from alpha helix?
A collagen helix is less compact (because it goes into triple helices), and it is a left-handed helix. An alpha helix is more compact and hence requires more rotation of bonds to form (hence proline is not very common...has an imidazole ring). It is a right-handed helix, and goes into double helices instead.
What can form a structure such as a helix or a sheet?
Proteins can form structures such as a helix or a sheet due to the specific arrangement of amino acids in their sequence. The hydrogen bonding between the amino acids in the polypeptide chain determines the secondary structure of the protein, leading to the formation of helices and sheets.
When did Linus Pauling discover the structure of a protein?
Linus Pauling was one of the first to propose the alpha helix structure of proteins in 1951. His work on the structure of proteins paved the way for our understanding of their function and importance in biology.
What are the two most common secondary structures in a protein?
The two types of tertiary protein structures: globular and fibrous proteins. Globular proteins act as enzymes that catalyze chemical reactions in organisms. Fibrous proteins like collagen play structural role.
The alpha helix and beta pleated sheet represent which level of protein structure?
The alpha helix and beta pleated sheet represent the secondary structure of proteins. Both structures are formed by the interaction of amino acids within the polypeptide chain through hydrogen bonding.
What did Herman branson invent?
The alpha helix
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.
