"Photolyases" Pronounce,Meaning And Examples
"Photolyases" Natural Recordings by Native Speakers
"Photolyases" Meaning
Photolyases are a class of enzymes that catalyze the light-dependent repair of DNA damage, specifically the removal of cyclobutane pyrimidine dimers (CPDs) and (6-4) photoproducts (6-4PPs) induced by ultraviolet (UV) irradiation. These enzymes are found in bacteria, archaea, and some eukaryotes, and play a crucial role in protecting genomic integrity in response to UV-B radiation.There are several types of photolyases, including: CPD photolyases, which repair CPDs by using visible blue light to activate a catalytic cofactor called FAD (flavin adenine dinucleotide) and split the dimer, releasing the unmodified pyrimidine bases. (6-4) photolyases, which repair 6-4 PP by using visible blue light to cleave the cyclobutane ring and lose one pyrimidine base. DNA photolyase-like enzymes, which have a similar structure and activity to photolyases but lack the ability to split the CPD or 6-4PP.Photolyases work by absorbing light energy and using it to catalyze the repair of DNA damage. This process is essential for preventing mutations and maintaining genomic stability in organisms that are exposed to UV light.
"Photolyases" Examples
Here are 5 usage examples:
1. Scientific ResearchIn the field of photobiology, researchers studied the role of photolyases in repairing DNA damage caused by ultraviolet light.#2. Molecular BiologyPhotolyases are enzymes that catalyze the removal of 6-4 photoproducts from DNA, a type of damage induced by UV radiation.##3. BiochemistryThe enzyme photolyase fixes the cyclobutane pyrimidine dimers, which are lesions induced in DNA upon ultraviolet radiation exposure.### 4. GeneticsGeneticists used yeast strains deficient in photolyases to study the effects of UV-induced DNA damage on the cell cycle.### 5. Scientific PublishingThe journal Nature published a study on the structure-function relationship of photolyases from various microorganisms.
3. BiochemistryThe enzyme photolyase fixes the cyclobutane pyrimidine dimers, which are lesions induced in DNA upon ultraviolet radiation exposure.### 4. GeneticsGeneticists used yeast strains deficient in photolyases to study the effects of UV-induced DNA damage on the cell cycle.### 5. Scientific PublishingThe journal Nature published a study on the structure-function relationship of photolyases from various microorganisms.
"Photolyases" Similar Words
Photokinesis
Photokinesis is the supposed ability to move physical objects or change their trajectory with one's mind, using only light or other forms of electromagnetic radiation.
Photolithographic
Photolithographic refers to a method used in engineering, photography, and electronics, particularly in the fabrication of integrated circuits. The phrase is also spelled photolitographic or photolithography. It involves the transfer of a pattern onto a light-sensitive material (photosensitive resist material) using ultraviolet (UV) light. This process is essential in the production of microchips and other complex electronic components.
Photolithography
A technique used in the production of integrated circuits and flat panel displays. It involves transferring an image formed by light exposure onto a layer of photoresist on a substrate, typically silicon, creating a pattern of areas that are either exposed or protected from subsequent processing steps.
Photolog
Photoluminescence
Photoluminescence is a type of luminescence that occurs when a substance absorbs light and then re-emits it, often with a different wavelength. This process typically involves the excitation of electrons from a lower energy state to a higher energy state, followed by their relaxation to a lower energy state, releasing energy in the form of light.Photoluminescence can be produced by a wide range of materials, including liquids, gases, and solids, and can occur over a range of time scales, from very short times (e.g. fluorescence) to much longer times (e.g. phosphorescence).
Photoluminescent
Capable of producing light in response to light or radiation, typically re-emitting a part of the absorbed radiation as light.
Photolyase
Photolyase is an enzyme that repairs DNA damage caused by ultraviolet (UV) light. It recognizes and corrects thymine dimers, which are types of DNA lesions that occur when two adjacent thymine nucleotides are linked together, forming a covalent bond between them. This type of damage is particularly problematic because it can prevent the proper separation of DNA strands during replication, which can lead to mutations and cancer.Photolyase is an enzyme that contains a flavin group, a prosthetic group that absorbs light in the visible region of the electromagnetic spectrum, or in the blue/ultraviolet region, to catalyze the formation of keto-enol tautomers of the dimer pyrimidine pair to separate the UV fundamentals of thymine dimers. This process does not require energy, a process known as light-independent inorganic chemistry.In cells, photolyase is often found in organisms that are exposed to high levels of UV light, such as plants in sunny regions. It is used in the repair of DNA damage caused by UV light damage. Photolyase is particularly prevalent in plants, where it is often referred to as photolyase.(1)
Photolysis
Photolysis is the chemical decomposition of a molecule by made possible by light. It is a chemical reaction that occurs when a substance absorbs energy from light, causing the bonds between its atoms to break, resulting in the formation of new compounds. This process is commonly observed in molecules that absorb ultraviolet (UV) radiation, visible light, or other forms of electromagnetic radiation.
Photolytic
Breaking down a substance using light, especially ultraviolet radiation, often resulting in the formation of chemical bonds and the release of energy.
Photometer
Photometric
Photometrist
A specialist in photometry, the measurement of the intensity of light, usually with the aim of understanding the physical properties of luminous objects.
Photometry
Photometry is the measurement of the intensity of light, typically in terms of its radiation, brightness, or luminance. It is an important concept in various fields such as optics, astronomy, and photography.Photometry can involve measuring the total light emitted by an object, the light reflected from it, or the light passing through it. It is used to determine the optical properties of materials and devices, and to test the performance of light sources, optical instruments, and display devices such as monitors and televisions.In astronomy, photometry is used to measure the brightness of celestial objects, such as stars and galaxies, which can provide information about their temperature, size, and distance from us.
Photomicrograph
A photomicrograph is a photograph taken through a microscope, typically used to capture microscopic images or detailed magnified views of small objects or specimens. It is an image that shows the fine details of a specimen, often used in scientific research and documentation.
Photomicrographs
Photomicrographs are photographs taken through a microscope, which provides a detailed image of a small sample or object at a microscopic level. They are used to document the microscopic appearance of cells, tissues, bacteria, minerals, and other small objects.In other words, photomicrographs are photographs that use a microscope to magnify objects, allowing scientists, researchers, and educators to study and analyze the fine details of microscopic structures and specimens.