What is the length of a protein molecule?
A simple rule of thumb for thinking about typical soluble proteins like the Rubisco monomer is that they are 3-6 nm in diameter as illustrated in Figure 1 which shows not only Rubisco, but many other important proteins that make cells work.
How do you calculate the molecular mass of a protein?
If the sequence of amino acids is known for any given protein, we can roughly estimate the molecular weight of the protein by multiplying the average molecular weight of amino acids with the total number of amino acids present in the protein. The average molecular weight of an amino acid is known to be 110 Daltons(Da).
How do you calculate protein size?
Whatever program you use to visualize protein structures should have tool to measure the distance between any 2 atoms in the structure. Find the 2 atoms that appear to be the farthest apart, and measure the distance between them. That is the size of the protein in that dimension.
What is the approximate mass of a protein composed of 1000 amino acids?
A protein with a molecular weight of 110,000 consists of approximately 1000 amino acids. Proteins are quite stable. The lifetime of a peptide bond in aqueous solution is nearly 1000 years. However, the free energy of hydrolysis of proteins is negative and quite large.
What is the radius of a protein?
Average radius of folded protein
| Value | 2 nm |
|---|---|
| Comments | Note-radius of 2.5nm (5nm diameter) for average protein in E. coli given by link Lactose permease diameter is 6nm (BNID 100292). See BNID 105827 for radius of 2nm from a different reference. |
| Entered by | Ron Milo, Paul Jorgensen, Mike Springer |
| ID | 100018 |
How long is a protein sequence?
Proteins come in a wide variety of shapes, and they are generally between 50 and 2000 amino acids long.
How do I calculate molecular mass?
Multiply the atomic weight of each element with the number of atoms of that particular element. Similarly, do it for all the elements in the molecule or compound. Add up all the values obtained in the above step. Then add the unit as grams/mole you will get the molecular mass of the substance.
How do you find the molecular formula?
Divide the molar mass of the compound by the empirical formula molar mass. The result should be a whole number or very close to a whole number. Multiply all the subscripts in the empirical formula by the whole number found in step 2. The result is the molecular formula.
What is molecular weight of protein?
The molecular weights of a large number of proteins have been determined. Most consist of several subunits, the molecular weight of which is usually less than 100,000 and frequently ranges from 20,000 to 30,000.
How do I calculate molecular weight?
molecular weight = (number of carbon atoms)(C atomic weight) + (number of H atoms)(H atomic weight) so we calculate as follows: molecular weight = (6 x 12.01) + (14 x 1.01)
What would be the length of DNA containing 10000 base pairs?
The distance between the two base-pairs in a DNA molecule is 3.4 nm. If there are 10,000 bases then the length of the DNA will be 3.4 X 10,000=34000nm. 1m=109 so, 34000nm will be 3.4 X 10−5 m. So, the correct answer is 3.4 X 10−5 meter.
How do you calculate Monoisotopic mass?
Monoisotopic mass: Exact mass of an ion or molecule calculated using the mass of the most abundant isotope of each element. Example: monoisotopic mass of H2O = (2 × 1.007825 + 1 × 15.994915) u = 18.010565 u. The exact mass of the common elements and their isotopes are provided in Table 1.1.
What is the average molecular weight of a human protein?
The average molecular weight of human proteins is about 50,000 daltons.
What is the molecular weight of DNA?
Molecular Weight Calculator Molecular weight, also known as molecular mass, is an important parameter of DNA, RNA, protein and formula. The molecular weight of water is 18.02 g/mol, while it could be millions for many complex organic molecules. DNA molecular weight is an important parameter for Molecular Biology.
How do I use pureprotein molecular weight?
Protein Molecular Weight accepts a protein sequence and calculates the molecular weight. You can append copies of commonly used epitopes and fusion proteins using the supplied list. Use Protein Molecular Weight when you wish to predict the location of a protein of interest on a gel in relation to a set of protein standards.
How many Daltons are in a protein?
See the answer. The average molecular weight of human proteins is about 50,000 daltons. A few proteins are much larger, such as a muscle cell protein called titiin, which has a molecular weight of 3,000,000 daltons.