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I have unknown protein whose molecular weight is 8.9 kD. How many amino acids are in the protein?
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∙ 12y ago
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The average molecular weight of the 20 standard amino acids is 136 What is the molecular weight of a protein composed of 100 of these amino acids?
In the formation of a peptide bond, a water molecule is "lost" (18Da), so if there are 100 amino acids (of average weight = 128), 99 peptide bonds were created, kicking out 99 x 18 = 162 Da. 100 AA x 128Da = 12,800 Dalton Removing the "water" upon condensation gives 12,800 Da - 162 Da = 12,638 Da = 12,638 g/mol
What is a protein molecule made of and how many of these are there?
A protein is a chain of amino acids. Small chains of amino acids are called polypeptides. If the chain is over 20 amino acids long, it is called a protein.
How many Dalton in an amino acid?
how can i convert weight of amino acids to dalton ?
Is a amino acid a protein?
Answer 1The 20 amino acids are the building blocks of proteins.Answer 2You might consider it a protein because it makes up a protein, but it is not actually a protein.
Can 2 amino acids form a protein?
No. A protein is defined by its function, as much as its structure. A chain of two amino acids would have no protein-like functions. The smallest known protein is a chain of 20 amino acids, but most have many more, and sometimes consist of multiple chains of amino acids.
What has higher molecular weight amino acid or protein?
Proteins have the higher molecular weight. They consist of long chains of amino acids joined together.
What is the molecular weight for insulin?
The human insulin protein is composed of 51 amino acids, and has a molecular mass of 5808 Da. Insulin for other species will be somewhat different.
What is mw of gfp?
Aequorea GFP is a protein of 238 amino acids with a molecular weight of 27 or 30 kDa. Source: http://www.cryst.bbk.ac.uk/PPS2/projects/jonda/intro.htm
What will be molecular weight of peptide containing nine amino acids?
It is not predictable.There are 20 diffent amino acids.
What is the shortest protein?
I am not completely positive, but from what I can find it is said that the shortest protein peptide sequence consists just 8 amino acids. It is recognized by the anti-peptide antisera.The shortest protein in rice is 5 amino acids. The locus id is LOC_Os06g47230.
Do proteins have weight?
Yes all the proteins can be theoretically weighed easily by its number of amino acids. An average molecular weight of an amino acid is 110Da. So if a protein is containing 100 amino acids, it would be 100x110=11000Da or 11 kilo Dalton(kDa). Post translational modifications such as glycosylation,phosphorylation, ubiquitination add uo extra mass to the protein.
Why do proteins have large molecular masses?
Because they are a polymer of amino acids, known as polypeptide (as the amino acids are joined together by peptide bonds). A protein can have hundreds of amino acids, therefore their molecular masses reaches well above 500-800
The average molecular weight of the 20 standard amino acids is 136 What is the molecular weight of a protein composed of 100 of these amino acids?
In the formation of a peptide bond, a water molecule is "lost" (18Da), so if there are 100 amino acids (of average weight = 128), 99 peptide bonds were created, kicking out 99 x 18 = 162 Da. 100 AA x 128Da = 12,800 Dalton Removing the "water" upon condensation gives 12,800 Da - 162 Da = 12,638 Da = 12,638 g/mol
What are polypeptide composed of?
A polypeptide is a chain of amino acids linked by peptide bonds, with a molecular weight of up to about 10,000. It is composed of amino acids.
The majority of all acids are what is what ionize 100 percent or are strong molecular acids?
are strong molecular acids ionize 100
Does urea contain protein?
The molecular formula of the urea is NH2-CO-NH2. The proteins are long chain of many amino acids. Urea is formed out of metabolism ( break down) of the amino acids.
If insulin contains 3.4 percent sulfur what is the least moleculer weight of insulin?
Insulin is a hormone that regulate the homeostasis of glucose if the levels are above than normal. Insulin protein is made up of 51 amino acids, that gives the molecular weight about 5808 Da.There are disulphide linkages present between chain A and chain B of insulin protein that is provided by sulfur containing amino acid cysteine.
