s-s bridge or disulfide bond
Insulin has a tertiary structure which is folded into a spherical shape. An insulin molecule comprises two chains of amino acids held together by disulfide bonds. This is the active state of the hormone.
Look here for human insulinhttp://www.uniprot.org/uniprot/P01308#section_featuresThe prepeptide is composed of 110 amino acids, from which are processed 2 chains, one composed of 30 amino acids and the other from 21. These are connected by disulfide bridges.
The functional groups involved in forming disulfide bonds are sulfhydral (-SH) groups.
A disulfide bridge involves covalent bonds
s-s bridge or disulfide bond
Insulin has a tertiary structure which is folded into a spherical shape. An insulin molecule comprises two chains of amino acids held together by disulfide bonds. This is the active state of the hormone.
Disulfide bonds between cysteine amino acids in a peptide chain are critically in stabilizing preferred secondary and tertiary structures. Many enzyme activities rely on specific shapes that are stabilized by these disulfide bonds.
Look here for human insulinhttp://www.uniprot.org/uniprot/P01308#section_featuresThe prepeptide is composed of 110 amino acids, from which are processed 2 chains, one composed of 30 amino acids and the other from 21. These are connected by disulfide bridges.
The functional groups involved in forming disulfide bonds are sulfhydral (-SH) groups.
The functional groups involved in forming disulfide bonds are sulfhydral (-SH) groups.
Disulfide bonds
Hair is soft due to the disulfide bonds in the alpha keratin (a protein) in hair. Too many disulfide bonds and you have a rigid structure like fingernails but a few disulfide bonds will give a soft flexible and stretchy fiber. The sulfur in hair and fingernails is also why they smell so bad when burned.
A disulfide bridge involves covalent bonds
Side bonds link two adjacent chains of atoms in a molecule. The three types of side bonds are hydrogen bonds, salt bonds and disulfide bonds.
Cysteine forms disulfide bonds
salt , hydrogen , and disulfide bonds