A dimer is a chemical or biological entity consisting of two subunits called monomers, which are held together by either intramolecular forces (covalent bonds) or weaker intermolecular forces. A chemical substance is a Material with a definite chemical composition. A monomer (from Greek mono "one" and meros "part" is a small Molecule that may become chemically bonded to other Intramolecular in Chemistry describes a process or characteristic limited within the structure of a single Molecule; a property or phenomenon limited to the extent In Physics, Chemistry, and Biology, intermolecular forces are forces that act between stable Molecules or between functional groups of
An example of a molecular dimer (i. Cyclopentadiene is a Chemical compound with the formula C5H6 This colorless liquid organic chemical has a strong In Chemistry, a molecule is defined as a sufficiently stable electrically neutral group of at least two Atoms in a definite arrangement held together by e. held together by intramolecular forces) is dicyclopentadiene, wherein two cyclopentadiene molecules have reacted to give the product. Intramolecular in Chemistry describes a process or characteristic limited within the structure of a single Molecule; a property or phenomenon limited to the extent Dicyclopentadiene, abbreviated DCPD, is the Chemical compound with the formula C10H12 Cyclopentadiene is a Chemical compound with the formula C5H6 This colorless liquid organic chemical has a strong
Molecular dimers are often formed by the reaction of two identical compounds e. In Chemistry, a molecule is defined as a sufficiently stable electrically neutral group of at least two Atoms in a definite arrangement held together by g. : 2A → A-A.
In this example, monomer "A" is said to dimerise to give the dimer "A-A". A monomer (from Greek mono "one" and meros "part" is a small Molecule that may become chemically bonded to other Diaminocarbenes are another example which dimerise, to give tetraaminoethylenes. A persistent carbene (also known as a stable carbene or an Arduengo carbene is a type of Carbene demonstrating particular stability despite also being a Reactive Tetraaminoethylene organic compounds of the generla chemical formula (R2N2C=C(NR22
An example of an intermolecular or physical dimer is acetic acid wherein hydrogen bonds hold the two molecules together. In Physics, Chemistry, and Biology, intermolecular forces are forces that act between stable Molecules or between functional groups of Acetic acid, also known as ethanoic acid, is an organic chemical compound, giving Vinegar its sour taste A hydrogen bond results from a Dipole-dipole force between an Electronegative atom and a Hydrogen atom bonded to Nitrogen, Oxygen The water dimer is another such dimer. The water dimer consists of two water molecules loosely bound by a Hydrogen bond.
The term homodimer is used when the two molecules are identical (e. g. A-A) and heterodimer when they are not (e. g. A-B).
The reverse of dimerisation is often called disassociation. Dissociation in Chemistry and Biochemistry is a general process in which ionic compounds ( complexes, Molecules, or Salts) separate
In biochemistry and molecular biology, dimers of macromolecules like proteins and nucleic acids are often observed. Biochemistry is the study of the chemical processes in living Organisms It deals with the Structure and function of cellular components such as Molecular biology is the study of Biology at a molecular level The term macromolecule by definition implies "large Molecule " Proteins are large Organic compounds made of Amino acids arranged in a linear chain and joined together by Peptide bonds between the Carboxyl A nucleic acid is a Macromolecule composed of chains of monomeric Nucleotides In Biochemistry these Molecules carry Genetic information The dimerization of identical subunits is called homodimerization; the dimerization of different subunits or unrelated monomers is called heterodimerization. A monomer (from Greek mono "one" and meros "part" is a small Molecule that may become chemically bonded to other Most dimers in biochemistry are not connected by covalent bonds with the exception of disulfide bridges. In Chemistry, a disulfide bond is a single Covalent bond derived from the coupling of Thiol groups An example of this would be the enzyme reverse transcriptase, which is made of two different amino acid chains. In Biochemistry, a reverse transcriptase, also known as RNA-dependent DNA polymerase, is a DNA polymerase Enzyme that transcribes In Chemistry, an amino acid is a Molecule containing both Amine and Carboxyl Functional groups In Biochemistry, this
A nucleic acid is a Macromolecule composed of chains of monomeric Nucleotides In Biochemistry these Molecules carry Genetic information Deoxyribonucleic acid ( DNA) is a Nucleic acid that contains the genetic instructions used in the development and functioning of all known A DNA Polymerase is an Enzyme that assists in DNA replication. Proteins are large Organic compounds made of Amino acids arranged in a linear chain and joined together by Peptide bonds between the Carboxyl Antibodies (also known as immunoglobulins, abbreviated Ig) are Gamma globulin Proteins that are found in Blood or other Bodily A protein kinase is a Kinase Enzyme that modifies other Proteins by chemically adding Phosphate groups to them ( Phosphorylation) Receptor tyrosine kinases (RTKs are the high affinity Cell surface receptors for many polypeptide Growth factors Cytokines and Hormones In the field of Molecular biology, a transcription factor (sometimes called a sequence-specific DNA binding factor is a Protein that binds to specific sequences A leucine zipper, aka leucine scissors, is a super secondary Structural motif found in Proteins that creates adhesion forces in parallel In the field of Molecular biology, nuclear receptors are a class of Proteins found within the interior of cells that are responsible for sensing the presence of G protein-coupled receptors ( GPCRs) also known as seven transmembrane domain receptors, 7TM receptors, heptahelical receptors, and GTP chemical structurepng|thumb|180px| Guanosine triphosphate]] G proteins short for guanine nucleotide-binding proteins, are a family of Proteins involved Kinesins are a class of Motor proteins found in Eukaryotic cells Triose-phosphate isomerase (TPI or TIM is an Enzyme ( that catalyzes the reversible interconversion of the Triose phosphate Isomers Alcohol dehydrogenase (ADH is an enzyme discovered in the mid-1960s in Drosophila melanogaster. Factor XI or plasma thromboplastin antecedent is one of the Enzymes of the coagulation cascade. Factor XIII or fibrin stabilizing factor is an Enzyme ( of the blood coagulation system that crosslinks Fibrin. Toll-like receptors ( TLRs) are a class of single membrane-spanning non-catalytic receptors that recognize structurally conserved molecules derived from Microbes Fibrin (also called Factor Ia) is a Protein involved in the clotting of blood A monomer (from Greek mono "one" and meros "part" is a small Molecule that may become chemically bonded to other In Chemistry, an oligomer consists of a limited number of Monomer units (ολιγος or oligos is Greek for "a few" in contrast to a A polymer is a large Molecule ( Macromolecule) composed of repeating Structural units typically connected by Covalent Chemical bonds