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(A) ancV1R emerged in the common ancestor of bony vertebrates (black circle) and was lost in each of the common ancestors (gray circles) of teleost fish and of turtles, alligators, and birds (gray dashed lines and silhouettes). White silhouette and dashed black lines associated with shark indicate that ancV1R has not yet emerged.

A pheromone-sensing gene that predates land-dwelling vertebrates

Researchers at Tokyo Tech have found a quality that seems to assume a fundamental job in pheromone detecting. The gene is moderated crosswise over...
A molecular model for regulating Rad51 nucleoprotein filament formation by the Swi5-Sfr1 complex. Swi5–Sfr1 stabilizes Rad51 on ssDNA primarily by preventing its dissociation. This stabilization effect leads to a stable nucleating cluster formation and a reduction in filament disassembly. Red half-arrows indicate the kinetic steps affected by SSwi5–Sfr1.

Scientists unraveling the molecular details of DNA recombination regulation

A worldwide group from National Taiwan University (NTU) and Tokyo Tech distinguished how DNA recombinational repair is directed in an ongoing work distributed in...
Five metal elements are blended here in a small cluster on a one-nanometer scale. CREDIT Takamasa Tsukamoto

Breakthrough in blending metals

Multimetallic clusters- ordinarily made out of at least three metals - are earning consideration as they display properties that can't be accomplished by single-metal...
Structure of the proposed material Crystalline structure of the proposed material. The green dots represent cesium atoms, and the blue bodies correspond to the [Cu2I5]3− units that are confined between them. The cesium atoms plus the [Cu2I5]3− units can be regarded as core-shell structures, which enhance the photoluminescent properties of the material.

A new non-toxic, cheap, and stable blue photoluminescent material

Detailed understanding of light could help us create various optical and electronic devices for various applications. Quantum dots (QDs), exceptionally custom fitted nanoparticles that discharge...
Quantum states of various symmetrical species. Spherical atoms have the highest geometrical symmetry, and thus exhibit the high multiplicity of quantum states, usually called degeneracy. It has long been believed that any polyatomic species cannot exceed a sphere due to geometrical limitations. However, an inflated tetrahedron exhibits the anomalous degeneracy surpassing spherical atoms.

How a tetrahedral substance can be more symmetrical than a spherical atom

Atoms normally have the most elevated level of geometrical symmetry, relating to the spherical symmetry. A fascinating property frequently emerging from symmetry is a...
Outline of the drug delivery system (DDS) created in this study

Anticancer drugs distributed by a new drug delivery system reduces tumor size

Scientists at the Osaka University in collaboration with Tokyo Tech have developed a new type of drug delivery system that uses a poly (ethylene glycol)–poly(lysine) block...
Figure 1. Monitoring of photosynthetic oxygen production in cyanobacteria using ANA sensor ANA sensor was added to the culture of cyanobacteria, and the fluorescence of ANA sensor was monitored. Fluorescence of ANA sensor started to increase after 15 min of illumination, indicating the ANA sensor detected oxygen produced by cyanobacteria.

Genetically encoded oxygen sensor tracks changes in oxygen levels with very high sensitivity

In light of a protein from E. coli, researchers at Tokyo Tech have built up a fluorescent protein sensor ready to give ongoing data...
Structure of the proposed metallapolyyne molecular wire The proposed wire is "doped" with a ruthenium unit that enhances its conductance to unprecedented levels compared with previously reported similar molecular wires.

New molecular wires for single-molecule electronic devices

Single molecule electronic devices are those in which individual molecules are utilized as active electronic components constitute a promising approach for the ultimate miniaturization...
Redox regulation in plants to control photosynthetic activity Reduction/oxidation reactions in plants that control the activity of photosynthetic proteins when light is present (unshaded) and when it is absent (shaded). Unlike the well-known reactions that occur in the light, the mechanism of regulation in the dark was poorly understood. This study demonstrates that energy is funneled from the proteins to TrxL2 to 2CP and finally to hydrogen peroxide, keeping photosynthesis on standby until light is available again.

How do the plants relax photosynthesis at night?

Photosynthesis is a process used by plants in which energy from sunlight is used to convert carbon dioxide and water into molecules needed for...

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