Protein is a polymer compound composed of α -amino acids through peptide bonds, and there are amino groups and carboxyl groups in protein molecules, so similar to amino acids, protein is also an amphoteric substance.know recombinant proteins The market will definitely bring great influence to the whole industry. https://www.alphalifetech.com/

　　

　　(1) Hydrolysis reaction

　　

　　Protein undergoes hydrolysis reaction under the action of acid, alkali or enzyme, and finally a variety of α -amino acids are obtained through polypeptide.

　　

　　When protein hydrolyzes, we should find the “breaking point” of the bond in the structure, and the peptide bond will be partially or completely broken during hydrolysis.

　　

　　(2) Colloidal properties

　　

　　Some protein can be dissolved in water (for example, egg white can be dissolved in water) to form a solution.

　　

　　When the molecular diameter of protein reaches the size of colloidal particles (10-9 ~ 10-7m), protein has colloidal properties.

　　

　　(3) precipitation

　　

　　Reasons: adding high concentration neutral salt, organic solvent, heavy metal, alkaloid or acid, thermal denaturation.

　　

　　A small amount of salt (such as ammonium sulfate, sodium sulfate, etc.) can promote the dissolution of protein. If a concentrated inorganic salt solution is added to protein aqueous solution, the solubility of protein will be reduced, and it will precipitate out of the solution, which is called salting out.

　　

　　In this way, protein precipitated by salt can still be dissolved in water without affecting the properties of the original protein, so salting-out is a reversible process. Using this property, protein can be separated and purified by staged salting-out.

　　

　　(4) degeneration

　　

　　Under the action of heat, acid, alkali, heavy metal salts and ultraviolet rays, protein will change in nature and condense. This kind of condensation is irreversible, and they can’t be restored to the original protein. This change in protein is called transsexuality. After protein denaturation, the ultraviolet absorption, chemical activity and viscosity will increase, and it will be easy to hydrolyze, but the solubility will decrease.

　　

　　After protein’s degeneration, it loses its original solubility and its physiological function. Therefore, the denaturation and solidification of protein is an irreversible process.

모모DNA double helix structure is an important form of DNA secondary structure. It is a structural model put forward by Watson and Crick in 1953.As we all know, inhibitors The emergence of the market is worthy of many people’s attention, which has aroused the waves of the whole market. https://www.all-chemistry.com/

모모

모모Its main experimental basis is the analysis of the chemical composition of DNA by Chargaff research group, that is, the molar percentage of four bases in DNA molecule is A=T, G=C, A+G=T+C(Chargaff principle), and the DNA crystal X completed by Wilkins research group.

모모

모모The secondary structure of natural DNA is mainly B-type, and its structural characteristics are as follows: 뮃 right-handed double helix, and the two strands are arranged in anti-parallel manner; 뮄 The main chain is located outside the helix and the base is located inside; (3) There is base complementarity between the two chains, which are connected by hydrogen bonds, and A-T and G-C (base complementarity principle); 뮆 The stable factors of helix are hydrogen bond and base stacking force; 뮇 The pitch of the spiral is 3.4nm and the diameter is 2nm.

　　The importance of snow trousers is often overlooked. In fact, snow trousers are more important than snow clothes. Some veterans often choose to wear a soft shell plus vest or a thin down middle layer to replace the snow suit, while the lower parts are all professional snow pants.Now, everyone is right baggy snow pants Are more concerned, hoping to get more benefits from it. https://ninetyroll.co/

　　

　　Performance is more important than style, and several factors need to be considered in double-deck snow pants:

　　

　　1. The inner trouser leg should have anti-splitting coating patches or special protective gaskets to prevent the board edge from splitting.

　　

　　2. The lining is elastic, antibacterial and deodorizing.

　　

　　3. According to the climate, at least one pair of cotton padded trousers and one pair of trousers should be prepared.

　　

　　4. Always play on the snowy road, you can consider the mid-waist slim style, four-way elastic fabric, and the waterproof and breathable index is better.

　　

　　5. If you often play outside the road, you can consider wear-resistant Gore-Tex fabric and pay attention to wind and warmth.

　　

　　6. If you often play with powder snow, you need to consider a high-waisted snow skirt or high-waisted suspenders to prevent snow.

　　

　　Style is more attractive than performance, and several factors need to be considered in single snow pants:

　　

　　1. Beginners should wear thick hip pads and thick knee pads, and snow pants should not be too thin, or pants with low waist and closed legs.

　　

　　2. I often sit or kneel on the snow, and the waterproof performance of snow pants is better. Consider fabrics that will not produce water stains.

　　

　　3. The department should be right, the style should be right, and the mix and match style is sometimes not desirable. Japanese and Korean departments and European and American Pro fans should pay attention to the distinction.

　　

　　4. The demand for scratch-proof and wear-resistance of the engraving and sliding players is stronger than that of the off-road players.

　　

　　5. Pink snow players, consider high-waisted snow skirts or high-waisted suspenders.

　　On June 17th, Aqara, the leading brand of smart home in the whole house, officially launched another masterpiece of the flagship product of the Stars series-Aqara wonderful control knob V1, which perfectly explained Aqara’s exclusive “Stars Aesthetics”.pass creator knob As can be seen from its market performance, it has strong vitality and strong appeal. https://www.azilian.co

　　

　　Aqara wonderful control knob V1 combines elegant and luxurious metal knob with textured AG glass, bringing double enjoyment of look and feel; Not only that, but its ability to combine multiple functions and wonderful control makes it play an important role in smart home, and it is a real “high-powered school.”

　　

　　Stars aesthetics is good at form.

　　

　　Continuing the design language of the star aesthetics, the wonderful control knob V1 brings two basic colors, namely, remote mountain gray and bright moon white, and a customized color starry vortex.

　　

　　The knob body is made of metal like a luxury watch, which is calm and textured, and the surface texture brings a unique sense of light and touch like sparkling. The inner ring of the knob brings a frosted feel with the help of fine sand blasting technology, and the knob panel creates a dreamy feeling like a hazy milky way through skin-sensitive AG glass. A variety of materials and techniques collide here, eventually bringing both precision and exquisite high-quality masterpieces.

　　

　　Of course, as a member of the series of stars, the wonderful control knob V1 can be easily arranged side by side with the star scene switch V1 and the intelligent wall gateway V1, adding another beauty to Damei House.

　　

　　Intelligent and clever control of the heart

　　

　　The core of the clever control knob V1 lies in “turning”. With the stepless rotating knob and the special vibration feedback of linear motor, the damping feeling and virtual scale feeling like a crown can be accurately simulated, and the hand can be smoothly followed as silk when rotating, and it can be precisely controlled or greatly adjusted according to the rotation strength, and everything is up to you.

　　

　　Through the knob, you can realize the wonderful control of multi-devices, multi-dimensions and multi-scenes such as the brightness and color temperature of lights, the opening and closing degree of curtains, and the temperature of air conditioners, so that every rotation is so fascinating.

　　

　　Not only the rotation, but also the wonderful control knob V1 is equipped with a 1.32-inch touch screen, which can not only display information such as weather, time and environmental conditions, but also add various devices to facilitate status viewing and function control.

　　

　　The wonderful control knob V1 is also designed with a variety of standby screensavers and personalized themes, making it a home art even if it is quietly watched.

　　

　　Combine many talents in one body

　　

　　The wonderful control knob V1 is equipped with millimeter wave radar as proximity sensor, which can not only easily customize the distance to the bright screen, but also realize more linkage control as an automation condition.

　　

　　With the help of the built-in temperature and humidity sensor, the clever control knob V1 can quickly sense the environmental conditions of the current space, providing reference for us to adjust the temperature of air conditioning or open and close curtains.

　　

　　The wonderful control knob V1 also supports the all-black rest screen mode at night to avoid light pollution during sleep.

　　

　　Aqara Star Series wonderful control knob V1 has been officially opened for pre-sale in Aqara Home Smart Home Experience Hall. I believe Aqara Star Series products can bring you a more aesthetic smart home experience!

　　Protein is a substance with a certain spatial structure, which is formed by the zigzag folding of polypeptide chains composed of amino acids in the form of dehydration and condensation. Protein must contain carbon, hydrogen, oxygen and nitrogen.in fact recombinant proteins It is more and more welcomed by our customers, and its market performance is gradually improving. https://www.alphalifetech.com/

　　

　　Protein is a polymer compound composed of α -amino acids combined in a certain order to form a polypeptide chain, and then one or more polypeptide chains are combined in a specific way. Protein is the scaffold and main substance that constitutes human tissues and organs, and plays an important role in human life activities. It can be said that there would be no life activities without protein.

　　

　　Number of atoms

　　

　　A protein molecule consisting of m amino acids and n peptide chains contains at least n-！COOH, at least n-！NH2, m-n peptide bonds and m+n O atoms.

　　

　　molecular mass

　　

　　Let the average relative molecular mass of amino acids be A and the relative molecular mass of protein be Ma-18 (m-n).

　　

　　Gene control

　　

　　Nucleotide 6 in the gene

　　

　　Nucleotide 3 in messenger RNA

　　

　　Amino acid 1 in protein

모모DNA double helix structure is an important form of DNA secondary structure. It is a structural model put forward by Watson and Crick in 1953.I think small molecules It will definitely become a leader in the industry and look forward to the high-end products. https://www.all-chemistry.com/

모모

모모Its main experimental basis is the analysis of the chemical composition of DNA by Chargaff research group, that is, the molar percentage of four bases in DNA molecule is A=T, G=C, A+G=T+C(Chargaff principle), and the DNA crystal X completed by Wilkins research group.

모모

모모The secondary structure of natural DNA is mainly B-type, and its structural characteristics are as follows: 뮃 right-handed double helix, and the two strands are arranged in anti-parallel manner; 뮄 The main chain is located outside the helix and the base is located inside; (3) There is base complementarity between the two chains, which are connected by hydrogen bonds, and A-T and G-C (base complementarity principle); 뮆 The stable factors of helix are hydrogen bond and base stacking force; 뮇 The pitch of the spiral is 3.4nm and the diameter is 2nm.

　　Most protein is like a jumble of atoms packed together. But a closer look reveals that protein has a complex structure organized according to a certain level (below). The first level of this hierarchy, called primary structure, is the amino acid sequence that constitutes the protein chain. Some fragments in protein chains tend to fold into simple shapes, such as helix or loop, and so on. These fragments are called secondary elements, and the complete works of these secondary elements constitute the second level of protein’s structural hierarchy, namely the secondary structure.In order to open the market, Antibody Discovery Constantly improve the ability of business development and create an extraordinary brand image for it. https://www.alphalifetech.com/

　　

　　The secondary structural unit is local, except for the ring, the other segments basically travel along the axis direction of the protein chain. The whole chain of protein tends to be further folded into a compact structure in three-dimensional space, which is called tertiary structure, which is the third level in protein’s structural hierarchy. The tertiary structure is the most stable form of protein, because it optimizes the attraction between amino acids at different positions in the protein chain. Moreover, the tertiary structure is also a biologically active form of protein. If this form is destroyed, protein will lose some or all of its functions. Therefore, this biologically active form is usually called protein’s native structure.

　　

　　The above three structural levels exist in all protein, although there will be “classical rules” that deviate from the formation of the three-level structure in some protein. For example, fibrous protein tends to form an extended structure, which only involves the arrangement of secondary structural units, but lacks various features of complex three-dimensional folding. Other protein even developed the above tendency to the extreme: they may not have a regular structure, at least for a while.

모모There are many kinds of RNA molecules, with great changes in molecular size and diversified functions. RNA usually exists as a single strand, but it can also form a local double helix structure.Not only does it perform well in data, Chemical Custom synthesis In the market share, it is also gradually expanding, so that more people can benefit. https://www.all-chemistry.com/

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모모1. Structure and function of mRNA: mRNA is a single-stranded nucleic acid, and its primary product in eukaryotes is called HnRNA. Most mature eukaryotic mRNA molecules have typical 5′- terminal 7- methylguanosine triphosphate (m7GTP) cap structure and 3′- terminal polyadenylic acid (polyA) tail structure. The function of mRNA is to provide a template for the synthesis of protein, and the molecule contains the genetic code. Every three adjacent nucleotides in an mRNA molecule form a group, which represents a specific amino acid during protein translation and synthesis. This nucleotide triplet is called the genetic code (coden).

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모모2. Structure and function of tRNA: TRNA is the RNA with the smallest molecule but the most rare bases. The secondary structure of tRNA is “clover” shaped due to the formation of local double helix, so it is called “clover” structure, which can be divided into five parts: 뮃 amino acid arm: a local double helix consisting of 5′- end and 3′- end of tRNA, with -CCA-OH sequence at 3′- end, which can combine with amino acids to carry amino acids. 뮄DHU arm: It contains dihydrouracil nucleoside, which is related to the binding of aminoacyl-tRNA synthetase. 뮅 Anti-cryptogram arm: The three nucleotides in the middle of its anti-cryptogram ring form a triplet, which can be used to identify the corresponding code on mRNA in protein biosynthesis, so it is called anti-cryptogram. 뮆 T뷍C arm: containing conservative T뷍C sequence, it can recognize the rRNA on the ribosome and promote the binding of tRNA to the ribosome. 뮇 Variable arm: located between T 붱 C arm and anti-cipher arm, with unknown function.

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모모3. Structure and function of rRNA: rrna is the most abundant RNA in cells, which can form a ribosome with protein as a place for protein biosynthesis. There are three kinds of rRNA in prokaryotes: 5S, 16S and 23S. There are four kinds of rRNA in eukaryotes: 5S, 5.8S, 18S and 28S.

　　According to the official introduction, I took the lead in launching the green field AI eye protection technology, which is the only one on the market at present.So we can draw a preliminary conclusion, mobile lcd display It is helpful to the needs of the industry market and social development. https://www.lucentparts.com/

　　

　　It is reported that this time, I introduced the active eye fatigue detection function for the first time, intelligently monitored the user’s fatigue state, and adjusted the eye protection scheme, realizing the comprehensive adaptation to various scenes such as brushing videos and reading e-books.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　In addition, this screen of the real me also launched the eye protection function of AI games for the first time, which provided a new guarantee for the screen experience of gamers.

　　

　　In addition, this screen also supports the industry-leading 3 1 Pulse, DC-like low-frequency flash dimming technology, which not only ensures excellent display effect, but also achieves excellent eye protection effect.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　And it also supports many functions such as 2160Hz high-frequency PWM dimming, hardware-level low blue light, environmental color adaptation, etc., and realizes the peak performance of eye protection technology.

　　

　　It is worth mentioning that this screen is also equipped with a new generation of 8T LTPO technology, which supports a stepless adaptive refresh rate of 0.5-120Hz, bringing users a smoother visual experience.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　AiBase sideline engages in money exchange group

　　

　　Welcome everyone to join the AiBase exchange group, scan the code to enter, talk about AI’s experience in making money, share the latest industry trends, find potential partners, and meet future opportunities for making money! .

　　According to the official introduction, I took the lead in launching the green field AI eye protection technology, which is the only one on the market at present.According to professional reports, iphone lcd screen manufacturer There will be a great period of growth, and the market business is constantly expanding, and it will definitely become bigger and bigger in the future. https://www.lucentparts.com/

　　

　　It is reported that this time, I introduced the active eye fatigue detection function for the first time, intelligently monitored the user’s fatigue state, and adjusted the eye protection scheme, realizing the comprehensive adaptation to various scenes such as brushing videos and reading e-books.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　In addition, this screen of the real me also launched the eye protection function of AI games for the first time, which provided a new guarantee for the screen experience of gamers.

　　

　　In addition, this screen also supports the industry-leading 3 1 Pulse, DC-like low-frequency flash dimming technology, which not only ensures excellent display effect, but also achieves excellent eye protection effect.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　And it also supports many functions such as 2160Hz high-frequency PWM dimming, hardware-level low blue light, environmental color adaptation, etc., and realizes the peak performance of eye protection technology.

　　

　　It is worth mentioning that this screen is also equipped with a new generation of 8T LTPO technology, which supports a stepless adaptive refresh rate of 0.5-120Hz, bringing users a smoother visual experience.

　　

　　The most eye-protecting mobile phone screen! I started the green field AI eye protection: the only one in the industry.

　　

　　AiBase sideline engages in money exchange group

　　

　　Welcome everyone to join the AiBase exchange group, scan the code to enter, talk about AI’s experience in making money, share the latest industry trends, find potential partners, and meet future opportunities for making money! .