* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Levels of Protein Structure
Survey
Document related concepts
List of types of proteins wikipedia , lookup
Protein–protein interaction wikipedia , lookup
Protein mass spectrometry wikipedia , lookup
Structural alignment wikipedia , lookup
Nuclear magnetic resonance spectroscopy of proteins wikipedia , lookup
Circular dichroism wikipedia , lookup
Intrinsically disordered proteins wikipedia , lookup
Homology modeling wikipedia , lookup
Protein folding wikipedia , lookup
Protein domain wikipedia , lookup
Transcript
Levels of Protein Structure It is the sequence of a chain of amino acids joined by peptide (amide) bonds. Refers to the formation of a regular pattern of twists or kinks of the polypeptide chain. The regularity is due to hydrogen bonds formed between the atoms of the amino acid backbone of the polypeptide chain. The two most common types of secondary structure are the ones shown. (alpha helix and beta pleated sheet.) It is the three dimensional structure formed by the bending and twisting of the polypeptide chain. This structure is stabilized by the interactions among the side chains of the amino acids forming the polypeptide. This level of structure refers to the fact that some proteins contain more than one polypeptide chain, adding an additional level of structural organization: the association of the polypeptide chains or ‘subunits’. The subunits can be the same polypeptide chain or different ones.