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Can a chain structure model be a alpha or beta?
alpha
What type of secondary structure does hemoglobin have?
Alpha helices
What type of interaction stabilizes the secondary structure of a protein causing it to form an alpha-helix?
In an α-helix, the polypeptide backbone forms a repeating helical structure that is stabilized by hydrogen bonds between a carbonyl oxygen and an amine hydrogen. These hydrogen bonds occur at regular intervals of one hydrogen bond every fourth amino acid and cause the polypeptide backbone to form a helix.
What fiber is strong and composed of dense fibrous proteins?
connective tissue in animals is composed of many different proteins including collagen. Collagen is a protein that is composed of 3 left handed alpha helices interwoven with one another, which gives it great strength. Collagen is a rare example of a left handed alpha helix, and is thought to occur as such due to the post translational hydroxylation of the proline residues (proline typically does not occur in alpha helices because it distorts the helix).
What is the structure of alpha particles?
two protons, two neutrons.
Which amino acid has its alpha nitrogen in a ring?
Proline has an alpha nitrogen in a ring.
Which amino acid has no free alpha amino group?
Proline
1 Proline is the amino acid least commonly found in alpha-helices but most commonly found in beta-turn discuss the reason for this behavior?
In proline the H2NC-COOH is not free rotatable (around C-C linkage) because it is 'build in' in a ring. (Sorry that this lousy text editor doesn't allow me to draw this structure to make it clear to you how)
Structure of keratin?
Alpha keratin has alpha helix structure and beta keratin has beta pleated sheet structure.
Can a chain structure model be a alpha or beta?
alpha
An alpha particle has the same structure as which nucleus?
The radioactive alpha particle has the same structure as the atomic nucleus of helium. They are usually formed and emitted during alpha decay.
Why proline amino acid gives yellow colour in reaction with ninhydrin?
Yes. Within "The Chemical Reactions of Amino Acids / Reactions of Amino Groups" there are several examples - one of which is the ninhydrin reaction. A very widely applied reaction of the alpha amino group [that is the N in the peptide bond -CCN-CCN-], it is used to estimate the quantity of amino acids [in a sample] in very small amounts. All amino acids and polypeptides with a free alpha group react with ninhydrin and yield [or produce] an intensely purple colored product - except for Proline and Hydroxyproline {both in which the alpha amino group is termed to be 'substituted' - something to do with carbon rings} which "yield derivatives with a characteristic yellow color." See also 'Schiff's bases'.
What is the structure of fructofuranose?
alpha- D- fructofuranose
What type of structure does hemoglobin have?
Alpha helices
What type of secondary structure does hemoglobin have?
Alpha helices
What is the crystal structure of polonium?
The structure of polonium alpha form is cubic.The structure of polonium beta form is rhombohedral.
What type of interaction stabilizes the secondary structure of a protein causing it to form an alpha-helix?
In an α-helix, the polypeptide backbone forms a repeating helical structure that is stabilized by hydrogen bonds between a carbonyl oxygen and an amine hydrogen. These hydrogen bonds occur at regular intervals of one hydrogen bond every fourth amino acid and cause the polypeptide backbone to form a helix.
