... increasing complexity of the proteins conformation. Primary structure is at the most basic level, with amino acids linked in a linear polypeptide chain, by peptide bonding, which is a type of covalent bond. Covalent bonds are formed by atoms with similar electronegativity, which each donate a valence electron to form a shared electron-pair bond. A polypeptide chain is composed of adjacent amino acids, where the α- ... proteins. A disulphide bond is created when two cysteine residues are oxidised to form a sulphur-sulphur covalent bond and is the only covalent bond formed by the side-cha...

• Word Count: 1582
• Approx Pages: 6
• Grade Level: Undergraduate

... and electron to a neutral chlorine atom (Cl) during a chemical reaction, the result would be called a sodium ion (written as Na+) and a chloride ion (written as Cl-). Chemical Bonding Chemical bonds form between atoms when it is energetically favorable. A chemical bond forms when two atoms share two electrons between them. A double bond represents four electrons shared between two atoms. When the ... attract and hold electrons is called its electronegativity. Different types of atoms, oxygen and hydrogen for example, have different electro-negativities. Covalent bonds are the result of at...

• Word Count: 10700
• Approx Pages: 43
• Grade Level: High School

... instead of a CH2-OH. The pectin chain is held together by a bond between carbon 1 of one galacturonic acid and carbon 4 of the next one and so on. Pectinase splits the bonds between these galacturonic acids to shorten the pectin chain from large fragments in to many more small fragments. The actual catalytic mechanism introduces water so pectinase is known as a hydrolytic ... the folded structure forms the catalytic or active site. However this folded structure will generally be held together by non-covalent interactions unlike the covalent bonds that hold the amino acid links together....

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

... oxygen, nitrogen, and a little sulfur). They accomplish all life functions. Proteins are polymers of amino acid monomers. Amino Acids are joined by peptide bonds. A peptide bond is when the carbon in the carboxyl group of one amino acid connects to a nitrogen in the amino group of another amino acid ... . This happens through dehydration synthesis, a process when a molecule loses water. 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. Once one or more ...

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

The Structure of Proteins Primary Structure The primary structure of a protein is the type and sequence of the amino acids used in the polypeptide. It is connected by peptide bonds, and the sequence determines the structure and shape of the whole protein. A single change can make a big difference to the end result. If there are two cysteines in the sequence, ... as shown in the diagram, then they will react and form a disulphide bridge. All covalent links in a protein are included in the primary structure. It contains all the materials needed for the cell. Any further structure is a result of...

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

... interactions could be thought of as intermediate collegiate activities, interactions outside the molecule and this. During the process of protein synthesis for the normal and mutated prion, special bonds known as peptide bonds form a polypeptide chain. There are several levels of organization that can describe the structure and reactivity of this prion protein. The primary structure is the specific linear ... distributed along the backbone of the chain. Another type of is beta-pleated sheet that are completely extended and lie next to one another. They are stabilized by hydrogen bonds b...

• Word Count: 1313
• Approx Pages: 5

... interactions could be thought of as intermediate collegiate activities, interactions outside the molecule and this. During the process of protein synthesis for the normal and mutated prion, special bonds known as peptide bonds form a polypeptide chain. There are several levels of organization that can describe the structure and reactivity of this prion protein. The primary structure is the specific linear ... distributed along the backbone of the chain. Another type of is beta-pleated sheet that are completely extended and lie next to one another. They are stabilized by hydrogen bonds b...

• Word Count: 2559
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School