Neutral Amino Acids
Amino acids which do not have any charge on them are neutral amino acids.
Globular Protein
The globular proteins refer to the shape of protein specifically spherical in nature apart from spherical form fibrous, disordered and membrane-bound proteins exist. These globular proteins are miscible in water and form a colloidal solution rather than other types which might not exhibit solubility. Many classes of the fold are found in globular proteins, which render them a sphere shape. Globular fold containing proteins usually are referred to by the term globin.
Dimer
Dimers are basic organic compounds, which are derivates of oligomers. It is formed by the combination of two monomers which could potentially be strong or weak and in most cases covalent or intermolecular in nature. Identical monomers are called homodimer, the non-identical dimers are called heterodimer. The method by which dimers are formed is known as “dimerization”.
Dipeptide
A dipeptide is considered a mixture of two distinct amino acids. Since the amino acids are distinct, based on their composition, two dipeptide's isomers can be produced. Various dipeptides are biologically essential and are therefore crucial to industry.
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## Chapter 19 Homework
### Problem 19.61
**Identify the following amino acids:**
```
CH3
|
—H2C—CH—CH3 and CH3—
```
Enter the names of the amino acids in the order they appear in the question. Separate your answers with commas.
[Text Entry Box]
[Submit Button] [Request Answer Button]
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### Part F
**Identify the type of interaction that occurs between the amino acids from part E and nonpolar R groups in a tertiary protein structure:**
[Text Entry Box]
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Note: This problem requires you to identify specific amino acids from their chemical structures. The first structure displays a molecule with a central carbon (alpha carbon) bonded to a hydrogen atom, a methyl group (CH3), and an isopropyl group (CH—CH3) on the side chain. The second structure displays a molecule with a central carbon (alpha carbon) attached to a methyl group (CH3). You should enter the correct names of these amino acids in the provided text box and consider the type of non-covalent interaction that typically occurs between such nonpolar side chains in the three-dimensional structure of a protein when answering Part F.
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