Pectinase splits the bonds between these galacturonic acids to shorten the pectin chain from large fragments in to many more small fragments. ... However this folded structure will generally be held together by non-covalent interactions unlike the covalent bonds that hold the amino acid links together. These consist of interactions such as ionic (salt) bridges, hydrogen bonds, hydrophobic and hydrophilic interactions and so on, which you will have come across in basic chemistry. ... Enzymes that do well at very high temperatures tend to have a more rigid, inflexible structure that may be h...

• Word Count: 530
• Approx Pages: 2
• Grade Level: Undergraduate

Amino Acids are joined by peptide bonds. ... Once all the amino acids join together or connect by peptides bonds, they form a sequence of amino acids also known as a polypeptide chain that become the primary structure of a protein. ... Disulfiede bridges are made by disulfide bonds. Disulfiede bonds are covalent bonds that usually come from the coupling of two think groups. The disulfide bridge is formed when the sulfur atom from one cysteine forms a single covalent bond with a sulfur atom from a second cysteine in a different part of the protein. ...

• Word Count: 679
• Approx Pages: 3
• Grade Level: High School

It is connected by peptide bonds, and the sequence determines the structure and shape of the whole protein. ... All covalent links in a protein are included in the primary structure. ... A beta pleated sheet is a form of shape where the bonds create a kinked shape, and attract across the space, as in the diagram overleaf. ... Various types of bonds are used in these links: hydrogen bonds between R groups, disulphide bonds between two cysteines molecules, as in the primary structure, ionic bonds between R groups containing amine and carboxyl groups, and hydrophobic reactions between R groups wh...

• Word Count: 467
• Approx Pages: 2
• Grade Level: High School