How can different proteins be made from the same amino acids?

Different proteins are made of different combinations of amino acids . The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. The three-dimensional shape of a protein determines its function.

Why can two proteins have the same number and type of amino acids but different tertiary structures?

The order of the amino acids (primary structure) in the two proteins may be different. This can result in ionic, hydrogen and disulphide bonds to form in different locations in each protein. Such differences may cause variations in the three dimensional structures of the proteins (tertiary structure).

How is it possible to make millions of different proteins from just a few amino acids?

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.

Can the same amino acid have different properties?

In addition to the amino and carboxyl groups, amino acids have a side chain or R group attached to the α-carbon. Each amino acid has unique characteristics arising from the size, shape, solubility, and ionization properties of its R group.

How many different proteins are there?

Scientists are not exactly sure, but most agree that there are around 20,000 different proteins in our body. Some studies suggest that there might be even more. They carry out a variety of functions from doing some metabolic conversions to holding your cells together to causing your muscles to work.

Why do different proteins have there amino acids in different orders?

The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene’s coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.

When two amino acids are joined together A is formed be specific?

peptide bond
When two amino acids are joined together, a dipeptide is formed. A special chemical bond called a peptide bond holds together two amino acids. Proteins usually consist of multiple amino acids that are held together by peptide bonds.

Which amino acids are similar to each other?

According to Grantham’s distance, most similar amino acids are leucine and isoleucine and the most distant are cysteine and tryptophan.