Kdag virtual currency
1. KDa: unit of atomic mass
kDa is the unit of molecular weight of protein in biology. In memory of Dalton, people take his name as the unit of atomic mass. D or KD is often used in biochemistry, molecular biology and proteomics, which is defined as 1 / 12 of the atomic mass of carbon 12, 1D = 1 g / mol. For a molecule, the mass of a molecule, expressed in Dalton units, is equivalent to its molecular weight
KDa is a science fiction about the future world serialized by wyzhjzh in the Internet bar from the end of 2012 to the end of 2013. If the classification is detailed, it should belong to soft science fiction. In the world described in the novel, because the development of science and technology surpasses the progress of human nature, computers with independent thinking fall into the earth by controlling satellites, which leads to a doomsday catastrophe3, kDa: Game definition
kDa refers to kill death assist (killing rate, death rate, support rate). KD ratio (KDR) is usually used to express the comparison of killing rate and death rate. From the game "dota", "lol" and "storm hero". The general formula is (homicide + assists) / death If the number of deaths is 0, the default is 1)
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kDa (Science Fiction) appreciation
the story is about the encounter and travel of an ordinary family and a half robot in the future human world controlled and destroyed by AI. Through the stories, it expresses the thinking about the world, life, nature, human, politics, love and other topics, Worry and thinking about the current situation of human beings and how human nature should advance
the novel carries forward the truth, the good and the beauty, criticizes the ugliness and sin of human nature, and has a certain entertainment. It also attempts to explore such issues as the calculation and plunder of human beings, racial war, political domination, oppression and resistance, the conflict between the ignorance of the blind and the foresight, as well as the content of religion, philosophy, science, biology and psychology, and the will, belief Ideal and other topics of human spirit
In biochemistry, molecular biology and proteomics, D or KD is often used. Proteins are macromolecules, so kDa is often used to express them
in memory of Dalton, people take his name as the unit of atomic mass (Dalton, Dal, Da, d), which is defined as 1 / 12 of the atomic mass of carbon 12, 1D = 1 / N, G, and N is the Avogadro constant
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in the literature of Biochemistry and Molecular Biology (especially when describing proteins), the term Dalton or Da is generally used. Because proteins are large molecules, they usually have a molecular weight of thousands of daltons. In this case, kDa is used as the unit
the types of peptides in proteins can be divided according to the molecular weight. Those with molecular weight between 1000 and 5000 daltons are called large peptides, while those with molecular weight between 180 and 1000 daltons are called small peptides, oligopeptides and oligopeptides, also called small molecular active peptides. Small molecular peptides, with an average molecular weight of less than 1000 daltons, can be directly absorbed by the small intestine without digestion and decomposition, and ultimately used for various functions of the body through the human cells, tissues, organs and blood circulation
in biology, the molecular weight unit kDa of protein is also referred to as KD, 1kDa = 1000 molar mass unit: Dalton, people take his name as the atomic mass unit in memory of Dalton. D or KD is often used in biochemistry, molecular biology and proteomics, which is defined as 1 / 12 of the atomic mass of carbon 12, 1D = 1 / ng, and N is Avogadro constant. For a molecule, the mass of a molecule, expressed in Dalton units, is equivalent to its molecular weight. But the molecular weight is the ratio of 1 / 12 of the mass of one molecule of the substance to the mass of 12C atom, which is an unnamed number. Therefore, it is incorrect to say that "the molecular weight of protein A is x Dalton". It should be said that "the mass of protein A is x Dalton".
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