Dechlorination of DDT at silver appears to proceed via a series of steps involving carbanion intermediates arising from direct reduction of alkyl and aryl carbon chlorine bonds along with hydroxide-promoted E2 elimination of chloride.
The biological reactivity of ONOO− for tyrosine nitration actually depends on radical intermediates arising from the interaction of ONOO− with CO2 [21], [21].
In live cells, GFP-SNX4 is localised with TfR in tubules that emanate from early endosomes and which are distinct from those containing mCherry-SNX1, consistent with the existence of morphologically distinct transport intermediates arising from the same endosome [ 28 ].
Highly reactive carbocation intermediates arise from the cleavage of diphosphate group on the substrate by class I diTPS that end the cyclization cascade, by quenching the carbocation via deprotonation or electrophilic attack by water.
The oxyanion hole is formed by the amino acid residues whose main chain nitrogen atoms act as hydrogen donors to the hydrolysed substrate, stabilizing the negative charge on the tetrahedral intermediate arising from the nucleophilic attack of the catalytic Ser during activation [30].
The working (and very preliminary) model of ASRT activation includes release of the transducer from the cytoplasmic side of the receptor during the formation of the M intermediate arising from the excitation of all- trans-ASR.
Following the nomenclature protocols recently proposed for CBCRs (and also presented here), we designate the red-absorbing species at 635 nm as Meta-Fr, a secondary intermediate arising from far-red illumination and absorbing red light.
The intermediate solutions arising from this algorithm, as well as the eventual optimal solution, have a special structure: each edge in the input network is either unused or used to its full capacity, except for a subset of the edges, forming a spanning pseudoforest of the input network, for which the flow amounts may lie between zero and the full capacity.
(iv) Consideration of the adiabatic, nonadiabatic, and intermediate regimes arising from the relative time scales of the dynamics of active electron(s), transferring proton(s), and other relevant nuclear modes.
Class II, intermediate lesions, apparently arising from the atypical cells, show temporally unrestricted growth within the tissue compartment of origin.
These controversial results were based mostly on conventional approaches such as morphological analysis, karyotype and allozyme assay, which are far enough to provide convincing conclusions for many species showing a high degree of morphological plasticity or intermediate morphological characters arising from forces other than hybridization [ 19].
