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Both peptides and proteins are made up of strings of the body's basic building blocks – amino acids – and held together by peptide bonds. In basic terms, the difference is that peptides are made up of smaller chains of amino acids than proteins. ... As a general rule, a peptide contains two or more amino acids.
Dervin Lewis
Matteo Kunze
Angel Volkman
Dervin Lewis
Wiki User
∙ 11y agoGenerally, polypeptides are shorter than proteins. It's a non-specific term, but usually it's amino acid < polypeptide < protein.
The "equal protein" is presumed to refer to a protein with the same amino acid sequence and length. In that case, there is another difference. Polypeptides aren't necessarily biologically active molecules. Once they're biologically active, they're proteins, or enzymes. All you care about in a polypeptide is the amino acid sequence. But in proteins, the primary structure is the amino acid sequence, but you're also very concerned about secondary structure (folding & conformational changes), tertiary structure (cross bonds among amino acids in the chain) and quarternary structure - association of multiple independent polypeptides into a single protein structure.
In short - with polypeptides all you really care about is the order of a long string of amino acids. With proteins, you're worried about exactly how that long string is bent, twisted, folded, and tied into other strings that have been bent, twisted and folded, to become a protein like hemoglobin that you need to breathe.
In summary - A polypeptide is a chain of amino acids. A protein is a chain of amino acids and thus a polypeptide. Short amino acid chains are called peptides. So the answer is if they are equal then they are the same thing, just different terms.
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How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
What are the different levels of protein structure and explain why tertiary structure must be maintained for protein function?
Primary = The polypeptide chain.Secondary = Hydrogen bonding of the bases form alpha helix and beta sheets.Tertiary = The R groups bond with each other ( hydrophobic, hydrophyllic, salt bridges, hydrogen bonding ) and the final form of the protein is this construction, so this form must be maintained so that the protein maintains function.Quaternary = The building of structure from more than two protein ( tertiary ) subunits. Hemoglobin, for example.
What is the tertiary structure for a protein?
'The Quaternary structure of a protein is the 4th level of folding for a protein. An example of this would be a red blood cell, which is a quaternary structure, it is made up of alpha helicies and also beta pleated in the tertiary structure. The Quaternary structure of a protein contains 4 tertiary structures in it.
How many amino acids are typically found in a polypeptide?
Typically containing fewer than 50 monomer units.
Is there more protein than sugar in semen?
yea they have more protein than raw eggs.
What are the example of structural protein?
Hemoglobin - formed with alpha helices and/or beta sheets, but as one, contiguous polypeptide. Superoxide dismutase would be a good example of a quaternary structure protein, since it is made of more than one polypeptide chain.
What is a tertiary protein structure exemplified by?
Hemoglobin - formed with alpha helices and/or beta sheets, but as one, contiguous polypeptide. Superoxide dismutase would be a good example of a quaternary structure protein, since it is made of more than one polypeptide chain.
If you put a bunch of Amino Acids together you get?
A polypeptide, held together by peptide bonds. A protein may be formed out of one or more polypeptides.
What do you call a chain of 25 amino acids?
a chain of 25 amino acids can be called a peptide chain ---------------------------------------------------------------------------------- Two or united amino acids form a *dipeptide* Three a *tripeptide* Ten or more a *polypeptide* More than 50 *protine* Therefore a chain of 25 amino acids is a polypeptide :D
Dialysis remove ammonium sulfate?
Yes. Dialysis removes ammonium sulphate since it is tiny than protein polypeptide molecules.
Is Oligopeptide a carbohydrate protein or lipid?
It is a short chain of amino acids. Theoretically, a protein is a much longer chain of amino acids that can be composed of more than one polypeptide chain.
Why was the one gene one protein hypothesis altered to one gene one polypeptide hypothesis?
Because one gene codes for one polypeptide and some proteins are made of more than one polypeptide and stuck together after translation of the genes that code for these polypeptides. Not sure if there ever was a one gene one protein hypothesis or if its just something they teach in schools to avoid overcomplicating things.
What is the biological term for a nucleotide sequence which carries the code for a protein?
If the protein has a single chain of amino acids (known as a polypeptide chain), e.g. human growth hormone, then the term would be gene. A gene can be defined as a segment of DNA that codes for a polypeptide chain (or for a molecule of RNA, such as a molecule of transfer RNA or ribosomal RNA).If the protein has more than one chain, and the chains have different sequences of amino acids, then the code is carried in more than one gene: "one gene, one polypeptide".The nucleotide sequence that codes for just one of the amino acids in a chain is called a codon, and it consists of three adjacent nucleotides, often written just as the bases, because these are the only parts that differ between nucleotides. An example of a codon is CCA.
How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
What must be done to a polypeptide chain to make it a functioning protein?
A protein becomes functional only when it folds itself into a three dimensional form or tertiary structure. More information - All amino acids have the same basic structure - an amino group, a carboxyl group and a hydrogen atom but they differ due to the presence of the side chain. The sequence of amino acids in a protein determines it's primary structure
When amino acids are stuck together by peptide bonds it becomes a?
a polypeptide chain when the chain is folded completely, it is a regularly functioning protein
What determines the functional structure of a protein?
A protein's structure is determined by:- the amino acid sequences of its polypeptide chains;- hydrogen bonds between amino acids in polypeptides;- other bonds (e.g. hydrophobic interactions, disulphide bridges) between side chains in the polypeptides; and- the arrangement of polypeptides (in a protein that contains more than one polypeptide)Scientists have mapped the structures of several proteins; however, scientists are still unsure as to how proteins actually form their final structures.The function of a protein is directly related to its structure. For example, a protein that fights a certain bacteria might have a shape that allows it to bind to the bacteria and then destroy it.
