During evolution, placental mammals appear to have lost cyclobutane pyrimidine dimer (CPD) photolyase, an enzyme that efficiently removes UV‐induced CPDs from DNA in a light‐dependent manner. As a ...

And cyclobutane pyrimidine dimers (CPDs) in skin biopsies — regarded as a UVR-associated molecular signature — decreased more significantly from baseline in the enzyme group than in the ...

The DNA molecules absorb UVB photons, which causes the creation of photoproducts such as pyrimidine (6-4), pyrimidone photoproducts (6-4PPS), and cyclobutane pyrimidine dimers (CPDs). These ...

We report integral, differential, and momentum transfer cross sections for elastic scattering of low-energy electrons by cyclobutane (c-C4H8), which is an isomer of the C4H8 molecule and has a closed ...

The [2+2] cycloaddition, triggered by sunlight, forms a strained cyclobutane that stores solar energy. ‘It’s hard to have the reaction in the solid state, the switch needs space,’ she adds. ‘Indeed, ...

The [2 + 2] photocycloaddition reaction of 2 molecules of ethylene in the presence of UV light gives one molecule of cyclobutane. The red hatched lines show the new bonds formed. What the hell does ...

The researchers used a specially designed monomer consisting of cyclooctene (8-membered unsaturated cyclic alkene) with a four-membered cyclobutane ring fused to the eight-member ring. Once dissolved ...

2 Central to this synthesis was an enantioenriched cyclobutane bearing an 8-aminoquinolinamide group, which the team made in three steps from commercially available starting materials via a tandem ...