Proteins have four levels of structure: primary (amino acid sequence), secondary (local folding patterns like alpha helices and beta sheets), tertiary (overall 3D shape), and quaternary (assembly of ...

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 ...

Low-density lipoproteins (LDL)—commonly known as bad cholesterol—have long been on scientists' radar as a major contributor ...

Non-Watson-Crick base pairs can play important roles in RNA secondary structure, protein-nucleic acid interactions, and genetic recoding events. The Role of Base Pairs in Genetics Base pairs play a ...

The siRNA associates with cellular proteins to form the RNA-induced ... 4,5 have demonstrated that mRNA target site secondary structure is of great importance for siRNA efficiency.

tertiary structure, and often begins co-translationally. Protein folding requires chaperones and often involves stepwise establishment of regular secondary and supersecondary structures ...