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What is the relationship among amino acids.polypeptides and proteins?
Wiki User
∙ 11y ago
Amino acids are the basic unit of proteins.
Amino acids linked together by a peptide bond forms a chain of amino acids called a polypeptide. When the amino acids from different parts of the chain interact with each other and form hydrogen bonds, the polypeptide chain takes on a unique shape, forming a protein.
Wiki User
∙ 11y ago
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What is the chemical reaction that builds up complex proteins from amino acids?
it is condensation polymerization among amino acids alongwith the removal of water molecules....
Are proteins large polypeptides?
As a matter of fact, yes. However the term polypeptide is a generic name given to a sequence of amino acids. This terminology varies among scientific researchers. In general terms, a peptide is the conjunction of two or more amino acids and up to 20 to 40 amino acid residues. Therefore, we have dipeptides (two amino acid residues linked by a peptide bond), tripeptides (three amino acids), oligopeptides (from 4 up to 20 or 40 amino acids) and polypeptides. In the particular case of polypeptides is important to mention that a polypeptide is a linear polymer formed by a sequence of amino acids linked "head to tail" by peptide bonds rather than forming branches chains. The range of lenght of polypeptides goes from about 40 to more than 4000 amino acid residues, that is, from an average of 4 to over 440 kD. In general terms, when a polypeptide is too long is called protein.
Which amino acids other than tryptophan display fluorescent emission?
Perhaps other amino acids with hydrophobic side chains as tryptophan has. Tyrosine and alanine, among others.
Does leather contain carbon and oxygen?
Yes. Leather, made from cow skin contain proteins such as keratin. These proteins contain the elements carbon and oxygen among others.
What is the difference between polypeptide and protein?
First, it is important to know that all proteins are technically polypeptides, although in general scientists consider polypeptides molecules consisting of one strand of amino acids chemically bound to one another that have no special or unique properties. It would be very difficult or impossible to find a degreed and professional scientist who considers all polypeptides proteins. One difference between what is called a "polypeptide" and a "protein" is based on the number of amino acids each one contains. A chain of amino acids that contains relatively few amino acids compared to known proteins is a "polypeptide." The second most important distinction between how the two words are used is that scientists normally reserve the word "protein" for molecules consisting entirely or nearly entirely of amino acids that exhibit specialized physical or chemical properties, or both. For example, hemoglobin is considered a "protein" because it is specialized to carry the oxygen in our red blood cells. Keratin is another protein that serves as a structural material in our skin and is the material of which hair is made. On the other hand aspartame, the artificial sweetener, is a polypeptide since it only consists of three amino acids chemically bound to one another, thus it is too small to be called a protein. I can see how one might argue that it is a protein because it has a powerful sweet taste, however there are several other chemical compounds that are not sugars that also have a powerful sweet taste. (What would otherwise be the carboxylic acid end of aspartame has been changed to its methyl ester.)
Are amino acids a composed of enzymes?
Amino acids make-up proteins, and enzymes are specialised proteins, so yes, enzymes do consist of amino acids.
Does protein contain cells?
Proteins are made up of sequences of amino acids. Amino acids are molecules made up of a amino group (NH3), a hydrogen (H), a carboxyl group ( O-C=O) and a variable group which varies among amino acids and defines the function of the amino acid.
What is made of phospholipids and proteins?
No, proteins are assembled from the multi R- branched monomeric amino-acid moieties called Amino Acids.
How comparisons between the proteins of two species can yield data about their evolutionary relationship?
Take the protein cytochrome C. There is not one amino acid difference in structure between we humans and our close relatives, the chimpanzees. There are 51 differences between humans and single celled yeast in amino acids. We can strongly and simply infer from this data the evolutionary relationship among the three species mentioned here.
What is the chemical reaction that builds up complex proteins from amino acids?
it is condensation polymerization among amino acids alongwith the removal of water molecules....
What is a polymer that contains many different molecules of amino acids?
Even though there are some variants among biochemists, we can consider this: a chain or polymer consisted of 2 to 10 or 12 amino acids is called a peptide. A polymer formed by 12 to 20 or 25 amino acid chain is called a polypeptide. And a polymer of more than 20 or 25 amino acids is called a protein.
What Organic molecule composed of long chains of amino acids?
This description applies to all alpha amino acids except for glycine.The amino acids found in cells of organisms are alpha amino acids. The carbon-containing group is a side chain, often symbolized by R.The general formula for amino acids isR-CH(NH2).COOHIn glycine R = H, but in all other amino acids R represents a side chain containing, among other elements, one or more carbon atoms.
Why are proteins among the most diverse macromolecules?
Proteins are made of long chains of molecules called amino acids. There are 21 different amino acids, resulting in almost endless possibilities. The sequence, the length, and the folding structure are all easily varied in proteins. By comparison, carbohydrates and lipids have few variations in structure or make-up.
What is the Radioactive molecule used to label proteins?
Proteins are labeled with radioactive amino acids so that they can be identified. Scientists use radioactivity to label proteins in order to track them during their experiments, you can follow protein degradation, label proteins that don't have antibodies, label all proteins produced at a certain time, separate proteins produced by intracellular pathogens from host proteins, among many other uses.
What is the relationship among DNA molecule messger rna and protein?
well - at the moment the conventional wisdom is that DNA codes for RNA. RNA codes for the production of amino acids, which are the building blocks for proteins. Most scientists agree that this is the hierarchy - BUT there are a few that think that it can work the other way around...but this is considered unlikely and has never been shown.
Is the amino acids structure similar among all amino acids?
No, every amino acid has its own structural (molecular) formula.
What are thin long strands of DNA that are coiled folded and twisted into short condensed strands?
Both vary considerably among organisms and types. The DNA in humans, uncoiled from chromosomes, differs from that of a different organism. Proteins can range from dipeptides (two amino acids) to thousands of amino acids long.
