dimer

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Related to Dimers: Thymine dimers

dimer

 
1. a compound formed by combination of two identical simpler molecules.
2. a capsomer having two structural subunits.
D-dimer a fragment of fibrin that is formed as a result of fibrin degradation. A positive test for its presence in the blood is suggestive of conditions such as thrombotic disease, sickle cell crisis, malignancy, disseminated intravascular coagulation, or recent surgery.

di·mer

(dī'mĕr),
A compound or unit produced by the combination of two like molecules; in the strictest sense, this occurs without the loss of atoms (thus, nitrogen tetroxide, N2O4, is the dimer of nitrogen dioxide, NO2), but usually by elimination of H2O or a similar small molecule between the two (for example, a disaccharide), or by simple noncovalent association (as of two identical protein molecules); higher orders of complexity are called trimers, tetramers, oligomers, and polymers.
[G. di-, two, + -mer]

dimer

/di·mer/ (di´mer)
1. a compound formed by combination of two identical molecules.
2. a capsomer having two structural subunits.

dimer

[dī′mər]
Etymology: Gk, di, twice, meros, parts
a compound formed by the union of two radicals or two molecules of a single simpler compound.

di·mer

(dī'mĕr)
A compound or unit produced by the combination of two like molecules; in the strictest sense, without loss of atoms (thus nitrogen tetroxide, N2O4, is the dimer of nitrogen dioxide, NO2), but usually by elimination of H2O or a similar small molecule between the two (e.g., a disaccharide), or by simple noncovalent association (as of two identical protein molecules); higher orders of complexity are called trimers, tetramers, oligomers, and polymers.
[G. di-, two, + -mer]

dimer

a molecule made by the joining of two molecules of the same kind, i.e. two MONOMERS. Ultraviolet light can induce THYMINE DIMERS in DNA.

dimer

chemical compound formed by the union of two identical molecules.
References in periodicals archive ?
Certain local rearrangements of [GAMMA] preserve the dimer measure [[mu].
Data were acquired by selected reaction monitoring (SRM) using the protonated molecular ion transition mass-to-charge ratio (m/z) 426 [right arrow] 236 for dimers derived from CS and DS, plus the sodiated molecular ion transition m/z 406 [right arrow] 245 for the HS dimer.
High concentrations of procyanidin B dimers had already been found in grape seeds.
In addition, the effects of temperature and sample dimensions on the monomer and dimer production from natural rubber have been documented by Groves et al.
Using the radiosotope method (Method RI) as described previously (13,14), we observed that styrene dimers and trimers did not show statistically significant inhibitory action against the binding of [[sup.
The dimers destroyed van- comycin-resistant bacteria much better than single vancomycin units.
Polystyrene used for food containers, such as takeout food containers, coffee cups, meat trays, soup bowls, and salad boxes (1), contains high levels of styrene dimers (90-1,030 [micro]g/g) and styrene trimers (650-20,770 [micro]g/g) as impurities (2,3).
The researchers propose that this enzyme flips both bases into its active site, breaks the dimer bond, and then thrusts the detached bases back into their proper positions.
An increase in the concentration of normal polyclonal [lambda] light chains is associated with an increase in the conversion of monomers to dimers and tetramers (7).
The group created several different dimers of neamine and tested them for their antibiotic activity and their ability to bind to RNA and disrupt protein synthesis.