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Hi, The DNA Helix is simply another name for DNA, and such name is used because DNA is in a double helix shape. The DNA is what determines who you are and therefore is found in every cell in our body. It is the genetic information of a human being and it contains genes, which are what determines our traits. For example, there are genes that control eye color, hair color, size of body...etc.
An alpha helix is a common secondary structure in proteins where a polypeptide chain is coiled in a helical shape. This structure is stabilized by hydrogen bonding between amino acids along the chain, forming a rigid and stable structure that contributes to the overall protein's function.
The DNA helix is formed by the hydrogen bonding of the oxygen in the carboxyl group on one amino acid and the hydrogen in the amino group of the second amino acid.
William Astbury dicovered two different protein structures called alpha form and beta form. The alpha form was a coiled protein that was not stretched out and the beta form was produced when the coil was stretched.
Even though his ideas were not correct naming system of the alpha and beta were kept as the names of the two most common secondary structures for proteins as the alpha helix and the beta pleated sheet.
An alpha helix is a secondary structure found in proteins, in which the amino acids are arranged in a coil, or helix, with almost no free space on the inside, and all side chains pointed towards the outside.
The alpha helix is the classic element of protein structure. First described by Linus Pauling in 1951 at CalTech, alpha helices in proteins are found when a stretch of consecutive amino acid residues all have the phi, psi angle pair (that is formed by the rotation of the planar peptide bond) approximately -60o and -50o (specifically, corresponding to the allowed region of the bottom left quadrant of the Ramachandran plot).
The alpha helix has 3.6 amino acid residues per turn with hydrogen bonds between C'=O of residue n and NH of residue n+4, thus, all NH and C'O groups are joined with hydrogen bonds except the first NH groups and the last C'O groups at the ends of the alpha helix. Alpha helices vary considerably in lenght in globular proteins ranging from four to five amino acid residues to over 40. The average lenght is around 10 amino acid residues, corresponding to three turns
An alpha helix is a type of secondary structure in proteins. The other type is the beta pleated sheet.
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What level of protein structure is represented by the coiling of the protein chain backbone into an alpha helix?
The coiling of the protein chain backbone into an alpha helix represents the secondary structure of a protein. This structure is stabilized by hydrogen bonds between the amino acid residues in the protein chain, forming a corkscrew-like structure.
What are the two most common secondary structures in a protein?
The two most common secondary structures in a protein are alpha helices and beta sheets. In an alpha helix, the polypeptide chain is twisted into a helical shape stabilized by hydrogen bonds between amino acid residues. In a beta sheet, the polypeptide chain forms a sheet-like structure with hydrogen bonds between adjacent strands.
Name two types of secondary protein structure Explain the role of hydrogen bonds in maintaining secondary structure?
Two types of secondary protein structure are alpha helix and beta sheet. Hydrogen bonds play a crucial role in maintaining these structures by forming between the carbonyl oxygen of one amino acid and the amide hydrogen of another, stabilizing the repeating patterns of amino acids in the helix or sheet. This helps in maintaining the overall shape and stability of the protein.
Pleating or coiling is what protein sturcture?
Coiling is a common protein structure. It refers to the coiling of the polypeptide chain into an alpha-helix or a beta-sheet. Pleating is not a standard term but may refer to the folding of the protein chain into a more compact structure.
How many sugar phosphate backbones does a double helix have?
A double helix structure has two sugar-phosphate backbones, one on each side of the helix. These backbones are made up of alternating sugar and phosphate molecules that support the DNA bases in the helix.
What type of helix forms RNA?
Alpha helix
How does collagen helix differs from alpha helix?
The collagen helix is a left-handed helix with three strands, while the alpha helix is a right-handed helix with a single strand. Collagen helix is rich in glycine and proline, while alpha helix is stabilized mainly by hydrogen bonds between amino acids. Collagen provides structural support in connective tissues, while alpha helix is a common protein structural motif.
What did Herman branson invent?
The alpha helix
Why is Branson famous?
He is famous because of his research of Alpha Helix protein structure. It is spiral chain of amino acids stabilized by hydrogen bonds.http://www.answers.com/topic/alpha-helix
Why is Herman Branson famous?
He is famous because of his research of Alpha Helix protein structure. It is spiral chain of amino acids stabilized by hydrogen bonds.http://www.answers.com/topic/alpha-helix
What is the axial length of alpha helix containing 78 amino acids?
the pitch of a alpha helix is o.54 nm , that is the distance between two points at the same horizontal position in a helix if is held up right. there are 3.6 aa per turn. therefore if there are 78 aa then Lengthhelix= (78 /3.6)* 0.54 nm
What structure refers to the twisting spiral shape formed by the sequence and properties of amino acids?
The phrasing is a little odd, but I suspect the term you're looking for is "alpha helix". Other "twisting spiral shapes" are possible, for example the 3.10 helix and the pi helix, but the alpha helix is the most common and most familiar.
Structure of keratin?
Alpha keratin has alpha helix structure and beta keratin has beta pleated sheet structure.
What protiens are found in plasma?
any Alpha helix formations of protien.
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.
How do you find out the length of alpha helix and beta helix?
The length of an alpha helix can be calculated by multiplying the number of amino acids by the rise per residue (1.5 angstroms). For a beta strand, the length is dependent on the hydrogen bonding pattern, with an average distance of 3.5 angstroms between each residue in a beta-strand.
Why can alpha keratin stretch?
I believe it is because of the alpha helix spiral structure of the molecule and the weak hydrogen bonds that create elasticity.
