The protein's structure defines how it functions and the role it plays. Its structure allows it to bind to different molecules to make its desired effect on the molecule. Antibodies and Enzymes work this way.
The four structures of proteins are the primary, secondary, tertiary, and quaternary.
Primary Structure - determined by inherited genetic information, this structure of protein is its unique sequence of amino acids.
Secondary Structure - formed in coils and folds as a result of hydrogen bonds. They can be helix or pleated sheet shaped.
tertiary structure - is the overal shape of the polypeptide caused from the interactions between the side chains(r groups). One interaction is a hydrophobic interaction. Disulfide bridges can be used to further strengthen the structure.
quaternary structure - results from the collection of polypeptide subunits.
Because of each of these unique structures of proteins, each is able to do a different job. Like hemoglobin (quaternary) the oxygenbinding protein of red blood cells.
because i commented first i did not copy from anyone else. ;)
The structure of protein (or any molecule) determines its function. Primary, secondary, tertiary, and quaternary structures of protein all have different functions. The primary structure is the basic structure of that protein. It is the linear sequence of amino acids that make up the protein molecule. The secondary structure is when hydrogen bonds form between the polypeptide backbones of the DNA structure, forming an alpha helix(coil) or a beta pleated sheet (chain lying side-by-side). The tertiary structure usually binds because of hydrophobic reactions (the clustering of nonpolar molecules because they cannot bond with water). These bonds can be reinforced by disulfide bridges. Quaternary structures are when more than one polypeptide chain aggregate into one functional macromolecule.
The specific structure of a protein determines how it works. the function depends on the proteins ability to recognize and bind with other molecules. Proteins have four different structures Primary, Secondary, Tertiary, and Quaternary.
Primary- Unique sequence of amino acids. the precise primary structure of a protein is determined not by the random linking of amino acids, but by inherited genetic information. they can be binded by alpha helix and the beta pleated sheet.
Secondary- Most proteins have polypeptide chains repeatedly coiled or folded in patterns that contribute to the proteins overall shape. this is a result of hydrogen bonds between the repeating constituents of the polypeptide bonds.
Tertiary- this structure is superimposed on the patterns of secondary structure proteins. It is the overall shape of a polypeptide resulting from interactions between side chains of the various amino acids. An example of an interaction is called hydrophobic interaction. The teritiary structure also forms what are called disulfide bridges through covalent bonds. They form when two cyteine monomers are brought close together by folding. this further strengthens and reinforces the bond.
Quaternary Structure- Overall protein structure that result from the aggression of the polypeptide sub units. An example is hemoglobin. in hemoglobin the alpha helix and beta pleated sheets contain heme, with an iron binded to an oxygen.
The protein is a biological compound consisting of polypeptides that facilitate a biological function in the body.
primary - is a unique sequence of the polypeptide chain, that has come from passed down genetic information.
secondary - are coil like structure and are usually alpha helixs or beta strand structures, and they are defined by patterns of hydrogen bonds.
tertiary - based on the shape of the secondary structure, it is a 3D model of a single protein molecule, which is held together by side chains of different amino acids.
quaternary - a larger assembly of several protein molecules and polypeptide chains. it is basically the whole protein structure finally put together.
The structure of a protein determines how it functions. There are four different structures for proteins: primary, secondary, tertiary, and quaternary. Primary: the level of protein structure referring to the specific sequence of amino acids. Secondary: the localized, repetitive coiling or folding of the polypeptide backbone of a protein due to hydrogen bond formation between constituents of the backbone. Alpha helix is a delicate coil held together by hydrogen bonding between every fourth amino acid. Beta pleated sheet is when two or more regions of the polypeptide chain lying side by side are connected by hydrogen bonds between parts of the two parallel polypeptide backbones. Tertiary: irregular contortions of a protein molecule due to interactions of side chains involved in hydrophobic interactions, ionic bonds, hydrogen bonds, and disulfide bridges. Quaternary: the particular shape of a complex, aggregate protein, defined by the characteristic three dimensional arrangement of its constituent subunits, each a polypeptide.
SEVANA NOURIAN A human has tens of thousands of different proteins, each with a specific structure and function. In fact, proteins are the most structurally sophisticated molecules known. Consistent with their diverse functions, they vary extensively in structure, each type of protein having a unique three-dimensional shape.
In almost every case, the function of a protein depends on its ability to recognize and bind to some other molecule.
All proteins share three superimposed levels of structure, known as primary, secondary, and tertiary structure. A fourth level, Quaternary structure, arises when a protein consists of two or more polypeptide chains.
The primary structure is its unique sequence of Amino acids. The precise primary structure of a protein is determined not by random but by inherited genetic information.
In the secondary structure folds and coils appear as a result of hydrogen bonds between the repeating constituents of the polypeptide backbone.
The tertiary structure is the overall shape of a polypeptide resulting from interactions between the side chains, the R groups, of the various Amino acids. Types of interactions include: hydrophobic interactions and covalent bonds called disulfide bridges.
The Quaternary structure is the overall protein structure that results from the aggregation of polypeptide sub units.
A protein consists of three overlapping structures: primary, secondary, tertiary, as well as fourth structure consisting of multiple polypeptide chains, called the quaternary structure. While the shape of a protein, where it can bind, and what it can bind to ultimately delineate its function or functions, each structure plays a unique role in determining this function as well. The primary structure of a protein is its specific chain of amino acids. The configuration of the amino acids determine its function, and as little as one misplaced amino acid in the chain can cause a mutation (sickle cell disease). The secondary structure is reminiscent of a coil and occurs when the fourth amino acid in each chain forms a hydrogen bond with each othe, creating a fold. The tertiary structure gives proteins its three dimensional shape, resulting from a wide array of interactions between the R groups of the amino acids. These hydrophobic interactions include ionic, covalent, hydrogen, and Van der Waals bonds. A disruption in the tertiary structure of a protein can cause denaturization. In addition, altered tertiary structures can cause gene mutations (e.g. diabetes insipidus.) Quaternary structure involves the clustering of multiple polypeptide chains and can be either globular or fibrous in shape.
Like all molecules, a protein's function is determined from it's shape and structure. Proteins consist of four levels of structure: primary, secondary, tertiary, and quaternary. The simplest, primary, structure is made of amino acid monomers that bond together through peptide bonds. In its secondary structure, the polypeptide chain folds because of hydrogen bonding between amino acids. Depending on the peptide bonds, the chain can either fold into an alpha helix, or into a beta pleated sheet. Now, the tertiary structure of a protein is formed from either ionic bonding between polar R groups, disulphide bridges, hydrogen bonds, hydrophobic clustering in water, as well as other forms of bonds between R groups that give each protein its unique three-dimensional shape. Finally, a protein's quaternary structure results from a combination of polypeptide subunits. Quaternary structure is stabilized by the same sorts of attractions that stabilize tertiary structures.
A protein's structure is important to its function because one minor mutation or mistake in a protein's primary structure magnifies and results into catastrophic defects in an organism.
The reason a proteins shape determines its function is due to it's four structural levels. Primary:The most basic is the primary structure made up of a sequence of amino acid momnomers that come together through peptide bonds. Secondary: The polypeptide chain folds due to hydrogen bonding between amino acids. The chain can for into a Alpha Helix, or a Beta Pleated Sheet depending on the peptide bonds. Tertiary: The tertiary structure can be formed from ionic bonding between polar R groups, disulphide bridges, hydrogen bonds, and other forms of bonds between R groups giving it it's special shape. Quaternary: It is the combining of polypeptide subunits, stabalized by the attractions that stabilize tertiary structures.
The protein's structure defines how it functions and the role it plays. Its structure allows it to bind to different molecules to make its desired effect on the molecule. Antibodies and Enzymes work this way.
ReplyDeleteThe four structures of proteins are the primary, secondary, tertiary, and quaternary.
Primary Structure - determined by inherited genetic information, this structure of protein is its unique sequence of amino acids.
Secondary Structure - formed in coils and folds as a result of hydrogen bonds. They can be helix or pleated sheet shaped.
tertiary structure - is the overal shape of the polypeptide caused from the interactions between the side chains(r groups). One interaction is a hydrophobic interaction. Disulfide bridges can be used to further strengthen the structure.
quaternary structure - results from the collection of polypeptide subunits.
Because of each of these unique structures of proteins, each is able to do a different job. Like hemoglobin (quaternary) the oxygenbinding protein of red blood cells.
because i commented first i did not copy from anyone else. ;)
The structure of protein (or any molecule) determines its function. Primary, secondary, tertiary, and quaternary structures of protein all have different functions. The primary structure is the basic structure of that protein. It is the linear sequence of amino acids that make up the protein molecule. The secondary structure is when hydrogen bonds form between the polypeptide backbones of the DNA structure, forming an alpha helix(coil) or a beta pleated sheet (chain lying side-by-side). The tertiary structure usually binds because of hydrophobic reactions (the clustering of nonpolar molecules because they cannot bond with water). These bonds can be reinforced by disulfide bridges. Quaternary structures are when more than one polypeptide chain aggregate into one functional macromolecule.
ReplyDeleteThe specific structure of a protein determines how it works. the function depends on the proteins ability to recognize and bind with other molecules. Proteins have four different structures Primary, Secondary, Tertiary, and Quaternary.
ReplyDeletePrimary- Unique sequence of amino acids. the precise primary structure of a protein is determined not by the random linking of amino acids, but by inherited genetic information. they can be binded by alpha helix and the beta pleated sheet.
Secondary- Most proteins have polypeptide chains repeatedly coiled or folded in patterns that contribute to the proteins overall shape. this is a result of hydrogen bonds between the repeating constituents of the polypeptide bonds.
Tertiary- this structure is superimposed on the patterns of secondary structure proteins. It is the overall shape of a polypeptide resulting from interactions between side chains of the various amino acids. An example of an interaction is called hydrophobic interaction.
The teritiary structure also forms what are called disulfide bridges through covalent bonds. They form when two cyteine monomers are brought close together by folding. this further strengthens and reinforces the bond.
Quaternary Structure- Overall protein structure that result from the aggression of the polypeptide sub units. An example is hemoglobin. in hemoglobin the alpha helix and beta pleated sheets contain heme, with an iron binded to an oxygen.
The protein is a biological compound consisting of polypeptides that facilitate a biological function in the body.
ReplyDeleteprimary - is a unique sequence of the polypeptide chain, that has come from passed down genetic information.
secondary - are coil like structure and are usually alpha helixs or beta strand structures, and they are defined by patterns of hydrogen bonds.
tertiary - based on the shape of the secondary structure, it is a 3D model of a single protein molecule, which is held together by side chains of different amino acids.
quaternary - a larger assembly of several protein molecules and polypeptide chains. it is basically the whole protein structure finally put together.
The structure of a protein determines how it functions. There are four different structures for proteins: primary, secondary, tertiary, and quaternary.
ReplyDeletePrimary: the level of protein structure referring to the specific sequence of amino acids.
Secondary: the localized, repetitive coiling or folding of the polypeptide backbone of a protein due to hydrogen bond formation between constituents of the backbone. Alpha helix is a delicate coil held together by hydrogen bonding between every fourth amino acid. Beta pleated sheet is when two or more regions of the polypeptide chain lying side by side are connected by hydrogen bonds between parts of the two parallel polypeptide backbones.
Tertiary: irregular contortions of a protein molecule due to interactions of side chains involved in hydrophobic interactions, ionic bonds, hydrogen bonds, and disulfide bridges.
Quaternary: the particular shape of a complex, aggregate protein, defined by the characteristic three dimensional arrangement of its constituent subunits, each a polypeptide.
SEVANA NOURIAN
ReplyDeleteA human has tens of thousands of different proteins, each with a specific structure and function. In fact, proteins are the most structurally sophisticated molecules known. Consistent with their diverse functions, they vary extensively in structure, each type of protein having a unique three-dimensional shape.
In almost every case, the function of a protein depends on its ability to recognize and bind to some other molecule.
All proteins share three superimposed levels of structure, known as primary, secondary, and tertiary structure. A fourth level, Quaternary structure, arises when a protein consists of two or more polypeptide chains.
The primary structure is its unique sequence of Amino acids. The precise primary structure of a protein is determined not by random but by inherited genetic information.
In the secondary structure folds and coils appear as a result of hydrogen bonds between the repeating constituents of the polypeptide backbone.
The tertiary structure is the overall shape of a polypeptide resulting from interactions between the side chains, the R groups, of the various Amino acids. Types of interactions include: hydrophobic interactions and covalent bonds called disulfide bridges.
The Quaternary structure is the overall protein structure that results from the aggregation of polypeptide sub units.
A protein consists of three overlapping structures: primary, secondary, tertiary, as well as fourth structure consisting of multiple polypeptide chains, called the quaternary structure. While the shape of a protein, where it can bind, and what it can bind to ultimately delineate its function or functions, each structure plays a unique role in determining this function as well. The primary structure of a protein is its specific chain of amino acids. The configuration of the amino acids determine its function, and as little as one misplaced amino acid in the chain can cause a mutation (sickle cell disease). The secondary structure is reminiscent of a coil and occurs when the fourth amino acid in each chain forms a hydrogen bond with each othe, creating a fold. The tertiary structure gives proteins its three dimensional shape, resulting from a wide array of interactions between the R groups of the amino acids. These hydrophobic interactions include ionic, covalent, hydrogen, and Van der Waals bonds. A disruption in the tertiary structure of a protein can cause denaturization. In addition, altered tertiary structures can cause gene mutations (e.g. diabetes insipidus.) Quaternary structure involves the clustering of multiple polypeptide chains and can be either globular or fibrous in shape.
ReplyDeleteLike all molecules, a protein's function is determined from it's shape and structure. Proteins consist of four levels of structure: primary, secondary, tertiary, and quaternary. The simplest, primary, structure is made of amino acid monomers that bond together through peptide bonds. In its secondary structure, the polypeptide chain folds because of hydrogen bonding between amino acids. Depending on the peptide bonds, the chain can either fold into an alpha helix, or into a beta pleated sheet. Now, the tertiary structure of a protein is formed from either ionic bonding between polar R groups, disulphide bridges, hydrogen bonds, hydrophobic clustering in water, as well as other forms of bonds between R groups that give each protein its unique three-dimensional shape. Finally, a protein's quaternary structure results from a combination of polypeptide subunits. Quaternary structure is stabilized by the same sorts of attractions that stabilize tertiary structures.
ReplyDeleteA protein's structure is important to its function because one minor mutation or mistake in a protein's primary structure magnifies and results into catastrophic defects in an organism.
The reason a proteins shape determines its function is due to it's four structural levels.
ReplyDeletePrimary:The most basic is the primary structure made up of a sequence of amino acid momnomers that come together through peptide bonds.
Secondary: The polypeptide chain folds due to hydrogen bonding between amino acids. The chain can for into a Alpha Helix, or a Beta Pleated Sheet depending on the peptide bonds.
Tertiary: The tertiary structure can be formed from ionic bonding between polar R groups, disulphide bridges, hydrogen bonds, and other forms of bonds between R groups giving it it's special shape.
Quaternary: It is the combining of polypeptide subunits, stabalized by the attractions that stabilize tertiary structures.