Determine whether each of the following statements describes the primary, secondary, tertiary, or quaternary structure of a protein.
d. Hydrogen bonding between amino acids in the same polypeptide gives a coiled shape to the protein.

Question

Determine whether each of the following statements describes the primary, secondary, tertiary, or quaternary structure of a protein.

d. Hydrogen bonding between amino acids in the same polypeptide gives a coiled shape to the protein.

Accepted Answer

All right. Hello everyone. So for this question, let's identify the level of protein structure. The statement below describes whether it's primary secondary tertiary or ordinary. And so the statement says that local regions of a protein adopt specific geometric shapes due to interactions between adjacent parts of the polypeptide chain. So let's start with a quick review of the different levels of protein structure starting off with the primary structure, which simply put is the sequence of amino acids that make up the polypeptide. And so from there, we take it a step further and move on to secondary structure which to summarize can be described as local folding. Moving on. From that we talk about tertiary structure, which is the three dimensional structure of the polypeptide. And so the tertiary structure is the consequence of intermolecular forces between amino acid side change or our groups. And so up to this point, all proteins have up to a tertiary structure but not all proteins have a ordinary structure. And that's because ordinary structure is only seen in proteins that have multiple polypeptide subunits. And so the ordinary structure is the arrangement of those sub units to create the entire protein complex. So again, this is not seen in all proteins. So now with this synopsis in mind, let's go back to the statement given, it's specifically talking about local regions of a protein adopting specific geometric shapes. So first and foremost, it's not going to be primary because it doesn't actually talk about the sequence of amino acids and there's no mention of multiple different subunits either. So it's not going to be ordinary either. So this brings us now to secondary or tertiary folding. So now what other information provided helps us distinguish between the two. So as you read on, right, you'll notice that it's specifically talking about adjacent parts of the polypeptide chain. And this is an important distinction because we're recorded in c in secondary structure. Excuse me, secondary structure is characterized as hydrogen bonding or bonding for short between backbone Adams. So it's hydrogen bonding taking place between atoms of the peptide bond backbone that make up the polypeptide. And so this is the most important distinction to make because tertiary structure which describes intermolecular forces between the side chains of amino acids can take place between amino acids that are very far apart in the sequence. Therefore, this is more characteristic of secondary structure because it's more closely describing that local folding between atoms of the polypeptide chain that are closer together. And so there you have it with that being said, thank you so very much for watching. And I hope you found this helpful.

Determine whether each of the following statements describes the primary, secondary, tertiary, or quaternary structure of a protein.
d. Hydrogen bonding between amino acids in the same polypeptide gives a coiled shape to the protein.

Verified video answer for a similar problem:

Key Concepts

Protein Structure Levels

Hydrogen Bonding in Proteins

Coiled Shape of Proteins

Determine whether each of the following statements describes the primary, secondary, tertiary, or quaternary structure of a protein.d. Hydrogen bonding between amino acids in the same polypeptide gives a coiled shape to the protein.

Verified video answer for a similar problem:

Key Concepts

Protein Structure Levels

Hydrogen Bonding in Proteins

Coiled Shape of Proteins

Determine whether each of the following statements describes the primary, secondary, tertiary, or quaternary structure of a protein.
d. Hydrogen bonding between amino acids in the same polypeptide gives a coiled shape to the protein.