How many different sequences are there for a 300 amino acid protein?

For a typical protein length of about 300 amino acids, more than 10390 (20300) different polypeptide chains could theoretically be made.

Are there 300 amino acids?

More than 300 amino acids are listed in the Practical Handbook of Biochemistry and Molecular Biology, but only the twenty amino acids in the table below are used to synthesize proteins. Amino acids with polar R groups that form hydrogen bonds to water are classified as hydrophilic (water-loving).

How many nucleotides are needed to code for a protein with 300 amino acids?

The answer is C, 1800 nucleotides. Here’s why: Each amino acid residue in a polypeptide chain was coded for by 3 nucleotides called a codon. With this in mind, a polypeptide with 300 amino acids would need a minimum of 900 nucleotides to code for it (3 x 300 = 900).

How many types of proteins can be formed from 100 amino acids?

How many different amino acid sequences are possible?

Proteins coded in human genome are expected to number about 3.5 × 104. If any combinations of 20 amino acids are equally possible, there are 1.3 × 10130 ( = 20100) possible amino acid sequences in proteins being composed of 100 amino acids.

How many protein sequences are possible?

Studies of the protein universe as it exists today began with the first determination of a protein sequence by Sanger in 1952 (2). Now, there are almost 8 million sequences in a nonredundant (NR) database of protein sequences, including the complete genomes of ≈1,800 different species.

How many possible proteins exist?

2. How Many Different Proteins Are Necessary to Support Human Function? The number of different proteins comprising the human proteome is a core proteomics issue. Researchers propose numbers between 10,000 [10] and several billion [6] different protein species.

How many nucleotides would you hypothesize are in a codon in order to accommodate 300 amino acids?

Each group of three nucleotides encodes one amino acid. Since there are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases). The adaptor molecule for translation is tRNA….

What would you call a molecule with 300 amino acids?

Amino acids are the building blocks for proteins. There are 20 different amino acids commonly found in proteins and often 300 or more amino acids per protein molecule.

Why are there so many different kinds of proteins when there are only 20 different amino acids?

The human body uses just 21 amino acids to make all the proteins it needs to function and grow. Because amino acids can be arranged in many different combinations, it’s possible for your body to make thousands of different kinds of proteins from just the same 21 amino acids.

How many different proteins containing 100 amino acids can be made from the 20 commonly occurring amino acids?

If any combinations of 20 amino acids are equally possible, there are 1.3 × 10130 ( = 20100) possible amino acid sequences in proteins being composed of 100 amino acids.

How many different amino acids are there in a protein?

There are 20 base amino acids, so there are 20 300 possible sequences of amino acids. A gross estimation of that number would be 2 300 ∗ 10 300 ∼ 10 90 ∗ 10 300 = 10 390. But, the number of sequences does not determine the number of different proteins.

How many different amino acids can a single site tolerate?

However, one could take a know ~300 amino acid residue length protein and posit that on average every single site could tolerate 10 different amino acids and still have a stable folded protein, then that would be 3000 proteins that were derivative of the known protein.

What is the number of possible combinations of proteins?

Proteins are long chains of amino acids in different permutations and combinations with multiple possible repeats of each amino acids. Therefore, the number of possibilities is immense and cannot be put forth in a good accurate number. A good article to give you a small idea as to how infinitely complex it gets.

How many different proteins exist in the human body?

To compare, the number of different existing proteins in all living organisms is estimated over 10 7 ( http://www.innovateus.net/health/how-many-proteins-exist-human-body) But, the number of sequences does not determine the number of different proteins.