Definition

1. Noun:
   • A chemical compound formed from two identical simpler molecules (monomers): A dimer is a molecule or molecular complex consisting of two identical subunits linked together. It is a specific type of oligomer.

Usage Examples

• Noun:
  • The protein exists as a stable dimer in solution.
  • Upon exposure to light, the monomers combine to form a dimer.
  • Scientists studied the dimer's structure to understand its function.

Advanced Usage

• "Homo-dimer": A dimer composed of two identical subunits. This is often the implied meaning of "dimer" in many biochemical contexts.
  • The receptor is active as a homo-dimer.
• Dimerization (n): The chemical process or reaction by which two molecules combine to form a dimer.
  • The dimerization of the monomers is catalyzed by the enzyme.

Variants and Related Words

• Dimeric (adj): Of or relating to a dimer; having the characteristics of a dimer.
  • The compound exhibits dimeric properties.
• Dimerize (v): To combine to form a dimer.
  • These molecules readily dimerize under certain conditions.

Synonyms

• Dimeric compound: A compound with a dimeric structure.
• Bimer (rare, technical synonym): A term occasionally used to mean a dimer.

Related Phrases and Concepts

• Protein dimer: A very common usage, referring to a protein complex consisting of two identical (homo-dimer) or different (hetero-dimer) subunits.
  • The transcription factor functions as a protein dimer.
• Dimer interface: The surface where the two monomer subunits contact each other.
  • Mutations at the dimer interface prevented complex formation.

Noun

1. a compound whose molecules are composed of two identical monomers