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How does the polarity of the side chain in leucine compare to the side chain in serine?
Wiki User
∙ 13y ago
leucine has a nonpolar side chain while serine has a polar side chain
Wiki User
∙ 13y ago
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Leucine polar or non-polar?
It is non polar. In amino acids, "polar" or "nonpolar" refers specifically to the side chain; the molecule as a whole is definitely polar, but leucine's side chain is a hydrocarbon with no polar groups.
Is tyrosine polar?
Yes. With Serine, Threonine, Asparagine, Glutamine and Cysteine, are considered as uncharged polar side chain amino acids.
How are amino acids grouped according to physical and chemical properties of the side chain?
basing on the polarity its divided into 3types 1, amino acids with uncharged polar side chain 2, amino acids with polar side chain 3, amino acids with charged nonpolar side chain
Is glycine a hydrophobic amino acid?
Glycine is usually classified as non-polar amino acid because it has just one hydrogen in the side chain. Since there is no significant difference in electronegativity between carbon and hydrogen- there is no polarity in the side chain.
How do polarity and shape of molecules relate to the properties of a substance?
Polarity and shape affect the ability of molecules to aggregate and pack together. Higher polarity, for example, may allow for hydrogen bonding to occur in certain instances which greatly increases a substance's melting and boiling points. If you compare CO2, which is non-polar and a gas at room temperature, to water (H2O) which is polar and is a liquid at room temperature, the different is due to polarity and hydrogen bonding. A good example of the effect of molecular shape on physical properties of compound is a comparison between isobutane and n-butane. Isobutane has a boiling point of -11.7 degrees C whereas n-butane boils roughly around 0 degrees C. Why does n-butane have a higher boiling point? Because n-butane is a straight-chain hydrocarbon which can pack well with other n-butane molecules around it. This maximizes molecular interaction and the weak intermolecular forces (i.e. London/van der Walls) keeping the molecules together. Isobutane, meanwhile, has less contact with other isobutane molecules because of its 3D shape/geometry which is more rigid than that of n-butane.
Leucine polar or non-polar?
It is non polar. In amino acids, "polar" or "nonpolar" refers specifically to the side chain; the molecule as a whole is definitely polar, but leucine's side chain is a hydrocarbon with no polar groups.
Where are serine and alanine located in the protein chain?
Wherever their associated triplet codons occur within the associated mRna's.
Is tyrosine polar?
Yes. With Serine, Threonine, Asparagine, Glutamine and Cysteine, are considered as uncharged polar side chain amino acids.
Where would the leucine side chain most likely be found in a protein dissolved in water?
In the interior of the protein in contact with the nonpolar side chains
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