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Quaternary structure of proteins?
The quaternary structure is the overall structure of an enzyme complex. This is made of at least two separate polypeptide chains. The 3D structure of one polypeptide is known as the tertiary structure.
Polypeptides join together to make what?
Polypeptides join together to make proteins. Proteins are composed of one or more polypeptide chains folded into a specific three-dimensional structure that determines their function in the body.
Do cells make proteins on small structures called amino acids?
The right question would be, "Do cells make proteins FROM small structures called amino acids?" The short answer is, yes. If your interested in how look up the Hierarchy of Protein Structures. Specifically: Primary Structure ie. the amino acid sequence Secondary Structure ie repeating folding patterns (which help determine function.) Tertiary Structure ie. many folds and patters create a 3-D shape. For some proteins this is the final structure to a functional protein (such as ribonuclease). Quaternary Structure ie. Most functional proteins are comprised of two or more polypeptides that each adopt a Tertiary Structure (see above) and then assemble with each other. When proteins consist of more than one polypeptide chain, they are said to have Quarternary Structure.
Are proteins more or less resistant to acid hydrolysis that are nucleic acids why?
Proteins are generally more resistant to acid hydrolysis compared to nucleic acids. This is because proteins have a more complex and stable structure due to their folded three-dimensional conformation, which makes them less susceptible to being broken down by acid. Nucleic acids, on the other hand, have a simpler structure and are more susceptible to breaking under acidic conditions.
Are there proteins that don't have a tertiary structure?
Yes. The primary structure is the basic sequence of amino acids in the strand. If a protein doesn't have a primary structure, then it doesn't have amino acids. If it doesn't have amino acids, the building blocks of a protein, then there is no protein to speak of.
TWO OR MORe proteins that join to form a functional unit is?
A protein complex is formed when two or more proteins interact and come together to carry out a specific biological function. These proteins can physically associate with each other to form a stable complex through non-covalent interactions. The complex often has a unique structure and function different from the individual proteins that comprise it.
Quaternary structure of proteins?
The quaternary structure is the overall structure of an enzyme complex. This is made of at least two separate polypeptide chains. The 3D structure of one polypeptide is known as the tertiary structure.
Do all proteins have quandary structure?
No. Proteins start out as a Primary structure, which is just the linear form and sequence of amino acids. The proteins then start forming alpha helices and/or Beta sheets depending on the properties of the amino acids. This is their Secondary structure The proteins then fold completely into tertiary structure. Here, we have a lot of hydrogen bonding and hydrophobic interactions within the protein between the helices and beta sheets. Many proteins are fully functional in their tertiary structure and don't have any reason for forming into a quaternary structure. In the quaternary structure, we usually see an interaction between 2 or more polypeptides or proteins. An example would be 2 proteins in their tertiary structure binding together to become a functional dimer. If 3 proteins were interacting it would form a trimer. Several proteins are functional only in a quaternary structure while several more proteins are just fine in their tertiary structure and therefore do not have a quaternary structure.
Polypeptides join together to make what?
Polypeptides join together to make proteins. Proteins are composed of one or more polypeptide chains folded into a specific three-dimensional structure that determines their function in the body.
What level of protein structure is characteristic of some but not all proteins?
Quaternary structure is the level of protein structure that is characteristic of some proteins, but not all. Quaternary structure refers to the arrangement of two or more individual protein subunits to form a larger, biologically active complex. Proteins with quaternary structure often exhibit increased functional diversity and complexity compared to proteins with simpler levels of structure.
Do cells make proteins on small structures called amino acids?
The right question would be, "Do cells make proteins FROM small structures called amino acids?" The short answer is, yes. If your interested in how look up the Hierarchy of Protein Structures. Specifically: Primary Structure ie. the amino acid sequence Secondary Structure ie repeating folding patterns (which help determine function.) Tertiary Structure ie. many folds and patters create a 3-D shape. For some proteins this is the final structure to a functional protein (such as ribonuclease). Quaternary Structure ie. Most functional proteins are comprised of two or more polypeptides that each adopt a Tertiary Structure (see above) and then assemble with each other. When proteins consist of more than one polypeptide chain, they are said to have Quarternary Structure.
What is the relationship between proteins and polypeptides?
Proteins are made up of one or more polypeptides, which are chains of amino acids linked together. Polypeptides are the building blocks of proteins, and proteins are larger, more complex molecules that perform various functions in the body.
Globular or fibrous polypeptide chains are what type of protein structure?
Fibrous polypeptide chains are a type of protein structure known as secondary structure, while globular polypeptide chains are associated with tertiary structure. Globular proteins typically have a compact, rounded shape, while fibrous proteins have a more elongated, fibrous shape.
What is an example of tertiary?
An example of Tertiary structure regarding proteins are: ~side chains reactions ~sulfide bridges ~hydrophobic reactions ~chaperone proteins A protein may require 2 or more chains; if so, it will be considered a Quaternary Structure.
Are proteins more or less resistant to acid hydrolysis that are nucleic acids why?
Proteins are generally more resistant to acid hydrolysis compared to nucleic acids. This is because proteins have a more complex and stable structure due to their folded three-dimensional conformation, which makes them less susceptible to being broken down by acid. Nucleic acids, on the other hand, have a simpler structure and are more susceptible to breaking under acidic conditions.
Proteins with more than one polypeptide chain have what structure?
Proteins with more than one polypeptide chain have a quaternary structure. This structure is formed by the assembly of multiple polypeptide chains into a functional protein complex. The interactions between the individual polypeptide chains contribute to the overall structure and function of the protein.
Are there proteins that don't have a tertiary structure?
Yes. The primary structure is the basic sequence of amino acids in the strand. If a protein doesn't have a primary structure, then it doesn't have amino acids. If it doesn't have amino acids, the building blocks of a protein, then there is no protein to speak of.
