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Protein structure is the three-dimensional arrangement of atoms in an amino acid -chain molecule. Proteins are polymers – specifically polypeptides – formed from sequences of amino acids, which are the monomers of the polymer. A single amino acid monomer may also be called a residue, which indicates a repeating unit of a polymer.
Kishōtenketsu (起承転結) describes the structure and development of classic Chinese, Korean and Japanese narratives. The structure originated in China and was called qǐchéngzhuǎnhé ( 起承轉合) and used in Chinese poetry as a four-line composition, such as Qijue. From there, it moved to Korea where it is called giseungjeongyeol ...
Electrons and a compact nucleus of protons and neutrons. Atoms are the basic particles of the chemical elements. An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms.
A data structure known as a hash table.. In computer science, a data structure is a data organization, and storage format that is usually chosen for efficient access to data. [1] [2] [3] More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, [4] i.e., it is an algebraic structure about data.
struct (C programming language) In the C programming language, struct is the keyword used to define a composite, a.k.a. record, data type – a named set of values that occupy a block of memory. It allows for the different values to be accessed via a single identifier, often a pointer. A struct can contain other data types so is used for mixed ...
Three-act structure. The three-act structure is a model used in narrative fiction that divides a story into three parts ( acts ), often called the Setup, the Confrontation, and the Resolution. It was popularized by Syd Field in his 1979 book Screenplay: The Foundations of Screenwriting. Based on his recommendation that a play have a "beginning ...
PETases are an esterase class of enzymes that catalyze the breakdown (via hydrolysis) of polyethylene terephthalate (PET) plastic to monomeric mono-2-hydroxyethyl terephthalate (MHET). The idealized chemical reaction is: (ethylene terephthalate) n + H 2 O → (ethylene terephthalate) n-1 + MHET,
A biomolecule or biological molecule is loosely defined as a molecule produced by a living organism and essential to one or more typically biological processes. [1] Biomolecules include large macromolecules such as proteins, carbohydrates, lipids, and nucleic acids, as well as small molecules such as vitamins and hormones.