Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene is intronless and encodes a member of the histone H1 family. Transcripts from this gene lack polyA tails but instead contain a palindromic termination element.
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Bkherb.com
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2011/08/31
what is Silver Nitrate
Silver nitrate is an inorganic compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. It is far less sensitive to light than the halides. It was once called lunar caustic because silver was called luna by the ancient alchemists, because they believed that silver was associated with the moon .
Silver nitrate, also known as lunar caustic, is a soluble chemical compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. Comparatively, it is far less sensitive to light than the halides. It is called lunar caustic because silver was called luna by the ancient alchemists.
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Silver nitrate, also known as lunar caustic, is a soluble chemical compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. Comparatively, it is far less sensitive to light than the halides. It is called lunar caustic because silver was called luna by the ancient alchemists.
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Caesium iodide Suppliers,Caesium iodide for sale online from metal-powder-dust.com
Product name:Caesium iodide
CAS:7789-17-5
Molecular formula: CsI
Molecular Weight: 259.81
Description:Caesium iodide (American English: Cesium iodide) (CsI) is an ionic compound often used as the input phosphor of an x-ray image intensifier tube found in fluoroscopy equipment.An important application of caesium iodide crystals, which are scintillators, is electromagnetic calorimetry in experimental particle physics. Caesium iodide can be used in Fourier Transform Infrared (FT-IR) spectrometers as a beamsplitter.
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what is Caesium iodide
what is Lithium Cobalt Dioxide
Lithium cobalt oxide (LiCoO2) is a chemical compound commonly used in the positive electrodes of lithium-ion batteries. The structure of LiCoO2 is known theoretically and has been confirmed with techniques like x-ray diffraction, electron microscopy, neutron powder diffraction, and EXAFS: it consists of layers of lithium that lie between slabs of octahedra formed by cobalt and oxygen atoms. The crystal structure is denoted Rm in Hermann-Mauguin notation, signifying a rhombus-like unit cell with threefold improper rotational symmetry and a mirror plane. More simply, however, both lithium and cobalt are octahedrally coordinated by oxygen. Each cobalt atom is aligned on a common axis with lithium atoms and separated from each lithium atom by a triangle of oxygen atoms as can be seen in the figures. The threefold rotational axis is termed improper because the oxygen triangles are anti-aligned.
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2011/08/29
PAP ELISA kit Suppliers,PAP ELISA kit Exporters online from metallochemistry.com
Product name:PAP ELISA kit
Specification:96Test
Description:
Prostatic acid phosphatase (PAP) enzyme activity was first measured in the urine of men and was found to be localized in organs of the male genital tract. Gutman and co-workers suggested that PAP may be a significant tumor marker in those patients with prostate cancer, because serum PAP concentrations were found to be elevated in many men with primary prostatic carcinoma and metastatic lesions of prostate.
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content from:http://www.metallochemistry.com
Specification:96Test
Description:
Prostatic acid phosphatase (PAP) enzyme activity was first measured in the urine of men and was found to be localized in organs of the male genital tract. Gutman and co-workers suggested that PAP may be a significant tumor marker in those patients with prostate cancer, because serum PAP concentrations were found to be elevated in many men with primary prostatic carcinoma and metastatic lesions of prostate.
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content from:http://www.metallochemistry.com
what is probiotics benefits
1, prevention or improve diarrhea: eating habits bad or take antibiotics all can break the intestinal flora balance, can cause diarrhea. Added probiotics help balance the intestinal flora and intestinal tract to restore normal pH value, relieve diarrhea symptoms.
2, lactose intolerance ease symptoms: lactobacillus can help the body break down lactose, alleviate diarrhea, bilge gas, etc, with symptoms can milk with food.
3, prevent vaginal infection: the yogurt lactobacillus acidophilus can inhibit vagina candida albicans breeding. Europe do double-blind, placebo-controlled confirmed this. Female patient oral 150 ml per person a day with large amounts of probiotic yogurt, vaginal infection rate is much lower than the placebo group of women.
4, enhance human immunity: there are in the intestines very developed the immune system. Probiotics can by stimulating the immune function in the gut, will be too low or too high immunity activity adjustment to the normal state. Probiotics this adjust the immune function was also thought to help inhibit cancer and allergic diseases.
5, and facilitate the digestive system health: probiotics can restrain harmful bacteria in the intestines of breeding, reduce toxin, promotes intestine movement, so as to improve bowel function, bowel condition.
6, reduce serum cholesterol: Europe's Caucasus mountains, the Mediterranean coast is a famous hometown of longevity, the local people often drink homemade yogurt, rarely have diabetes mellitus, cardiovascular diseases and obesity, a large number of scientific research confirmed it and yogurt contains about probiotics. These supplements can reduce serum cholesterol levels, in addition, long-term added probiotics may also help prevent bone loss of, prevent osteoporosis.
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2, lactose intolerance ease symptoms: lactobacillus can help the body break down lactose, alleviate diarrhea, bilge gas, etc, with symptoms can milk with food.
3, prevent vaginal infection: the yogurt lactobacillus acidophilus can inhibit vagina candida albicans breeding. Europe do double-blind, placebo-controlled confirmed this. Female patient oral 150 ml per person a day with large amounts of probiotic yogurt, vaginal infection rate is much lower than the placebo group of women.
4, enhance human immunity: there are in the intestines very developed the immune system. Probiotics can by stimulating the immune function in the gut, will be too low or too high immunity activity adjustment to the normal state. Probiotics this adjust the immune function was also thought to help inhibit cancer and allergic diseases.
5, and facilitate the digestive system health: probiotics can restrain harmful bacteria in the intestines of breeding, reduce toxin, promotes intestine movement, so as to improve bowel function, bowel condition.
6, reduce serum cholesterol: Europe's Caucasus mountains, the Mediterranean coast is a famous hometown of longevity, the local people often drink homemade yogurt, rarely have diabetes mellitus, cardiovascular diseases and obesity, a large number of scientific research confirmed it and yogurt contains about probiotics. These supplements can reduce serum cholesterol levels, in addition, long-term added probiotics may also help prevent bone loss of, prevent osteoporosis.
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where to buy Nano SiO2 Dispersion
Product name:Nano SiO2 Dispersion
Storage:
In dry, cold place, airproof at the temperature between 5 and 30 degrees centigrade.
Product description:
Nanometer silicon dioxide has lots of special properties such as innocuity, insipidity, small particle size, big surface volume etc. There are a large number of hydroxyl groups that are diunsaturated and different bonding state. The capabilities of material can be improved greatly when adding some nanometer silicon dioxide dispersion.
Application:
Nanometer silicon dioxide dispersion can be widely used in lots of industrial fields,including Paint，Bond and sealant，Fire-resistant materials，Cotton industry，Paper making industry and so on.
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content from:http://www.nanopro-nano.com
Storage:
In dry, cold place, airproof at the temperature between 5 and 30 degrees centigrade.
Product description:
Nanometer silicon dioxide has lots of special properties such as innocuity, insipidity, small particle size, big surface volume etc. There are a large number of hydroxyl groups that are diunsaturated and different bonding state. The capabilities of material can be improved greatly when adding some nanometer silicon dioxide dispersion.
Application:
Nanometer silicon dioxide dispersion can be widely used in lots of industrial fields,including Paint，Bond and sealant，Fire-resistant materials，Cotton industry，Paper making industry and so on.
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buy Silver Nitrate
Product name:Silver Nitrate
CAS NO.:7761-88-8
Molecular formula:AgNO3
Molecular weight:169.87
Product description:
Silver nitrate, also known as lunar caustic, is a soluble chemical compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. Comparatively, it is far less sensitive to light than the halides. It is called lunar caustic because silver was called luna by the ancient alchemists.
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silver nitrate msds
the information of silver-nitrate
CAS NO.:7761-88-8
Molecular formula:AgNO3
Molecular weight:169.87
Product description:
Silver nitrate, also known as lunar caustic, is a soluble chemical compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. Comparatively, it is far less sensitive to light than the halides. It is called lunar caustic because silver was called luna by the ancient alchemists.
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silver nitrate msds
the information of silver-nitrate
2011/08/26
what is silver nitrate used for
1, inorganic industry used to make other silver.
2, the electronics industry used in the manufacture of conductive adhesive, new gas purification, A8x molecular sieve, silver all over and live working gloves, etc.
3, photographic industrial used to make a film, x light phase and photographic film and film the photographic materials.
4, plating industry used in electronic components and other arts and crafts silver, also used as a mirror and a lot of heat preservation PingDan silver materials.
5, the oil industry for the production of zinc batteries. Medicine used fungicide, and corrosive product.
6, cosmetic industry used to dye hair, etc. In analytical chemistry was used for chlorine, bromine, iodine cyanide and thiocyanate salt, and used as determination of manganese catalyst.
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2011/08/15
the use of titanium sponge
Titanium sponge titanium production is the basis of industrial sectors, it is titanium, titanium powder and titanium components of other materials. The ilmenite into titanium tetrachloride, and then into a sealed stainless steel tank, filled with argon gas, so that they react with magnesium, get 'titanium sponge. "This porous "sponge titanium" is not used directly, but they must be melted in the furnace the liquid in order to cast titanium ingots.
Titanium sponge is a shape like a burnt titanium slag is the raw material. Mainly for non-ferrous metal smelting titanium. Produced titanium ingots can be used for processing plate, tube, rod, etc.
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2011/08/11
uses of tin
Mainly used for metal tin manufacturing alloys.
Tin and sulfur compounds-vulcanization tin, and its color and gold similar, are often used as golden pigment.
Tin and oxygen, carbon dioxide tin compounds. Tin at ambient temperatures, in the air from oxidation, strong, the carbon dioxide into the hot tin. Carbon dioxide tin is insoluble in water white powder, and can be used in the manufacture of enamel, BaiYou and milky white glass. Since 1970, people put it to prevent the air pollution-auto emissions of carbon monoxide gas often contained toxic, but in zion, the catalytic carbon dioxide in 300 ℃, but most into carbon dioxide.
With a long history, the tin can be traced back to 3700 BC, in ancient times, people often put on bottom of tin, purifying water quality. In Japan, in the courts of the wine is made from carefully with tinware of wine as a vessel. It has the same store dark brown, wine warm in winter and cool in summer, honest of the trigger. Tin teapot make tea with special scent, tin cup to drink tartaric acid cools and refreshing, tin bottle arranging flowers wilt not easily.
The material of the tinware is a kind of alloy, of which more than 97% pure tin content in, do not contain lead content, for everyday use. The characteristics of the soft and gentle tin, nobility is elegant modelling, you often new luster, have always been deeply noble the favour of people, and in Europe the more become a symbol of classical culture.
Tin is arranged in platinum, gold and silver behind of the fourth precious metals, it full of sheen, non-toxic, not easy oxidation change color, has the very good sterilization, purification, fresh utility. Life in used in food preservation and inner anti-corrosion membrane of the cans.
Tin is a soft texture of a metal, low melting point, plasticity. It can have a variety of surface treatment, can be made into DuoZhong style of product, traditional elegant wine, candlestick, European noble generous tea service, that is love at first sight vase and delicate and dazzing desk act the role ofing is tasted, with all the basics as silver yi yi is unripe brightness. With its elegant tinware of exterior modelling and unique function already popular world, all countries become daily supplies and relatives and friends of the market.
Tin in ancient China can often be used to make bronze. The proportion of copper and tin for now.
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Tin and sulfur compounds-vulcanization tin, and its color and gold similar, are often used as golden pigment.
Tin and oxygen, carbon dioxide tin compounds. Tin at ambient temperatures, in the air from oxidation, strong, the carbon dioxide into the hot tin. Carbon dioxide tin is insoluble in water white powder, and can be used in the manufacture of enamel, BaiYou and milky white glass. Since 1970, people put it to prevent the air pollution-auto emissions of carbon monoxide gas often contained toxic, but in zion, the catalytic carbon dioxide in 300 ℃, but most into carbon dioxide.
With a long history, the tin can be traced back to 3700 BC, in ancient times, people often put on bottom of tin, purifying water quality. In Japan, in the courts of the wine is made from carefully with tinware of wine as a vessel. It has the same store dark brown, wine warm in winter and cool in summer, honest of the trigger. Tin teapot make tea with special scent, tin cup to drink tartaric acid cools and refreshing, tin bottle arranging flowers wilt not easily.
The material of the tinware is a kind of alloy, of which more than 97% pure tin content in, do not contain lead content, for everyday use. The characteristics of the soft and gentle tin, nobility is elegant modelling, you often new luster, have always been deeply noble the favour of people, and in Europe the more become a symbol of classical culture.
Tin is arranged in platinum, gold and silver behind of the fourth precious metals, it full of sheen, non-toxic, not easy oxidation change color, has the very good sterilization, purification, fresh utility. Life in used in food preservation and inner anti-corrosion membrane of the cans.
Tin is a soft texture of a metal, low melting point, plasticity. It can have a variety of surface treatment, can be made into DuoZhong style of product, traditional elegant wine, candlestick, European noble generous tea service, that is love at first sight vase and delicate and dazzing desk act the role ofing is tasted, with all the basics as silver yi yi is unripe brightness. With its elegant tinware of exterior modelling and unique function already popular world, all countries become daily supplies and relatives and friends of the market.
Tin in ancient China can often be used to make bronze. The proportion of copper and tin for now.
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2011/08/08
wholesale Titanium tube suppliers
pecification:
OD: 6 - 80mm
WT: 0.5 - 12mm
Standards: ASTM B 338; ASME B 338
Gr.1, Gr.2, Gr.3, Gr.7, Gr.9, Gr.12
Titanium tube light quality, high strength, mechanical performance is superior. It is widely used in heat exchange equipment, such as tube heat exchanger and plate heat exchanger, serpentine hose heat exchanger, condenser, evaporator and pipeline etc. At present, a lot of the nuclear power industry titanium tube as its set the standard tube.
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2011/08/05
100% cashmere coats for men/for women on line
Suggestion: As for the care of your cashmere apparel, sweaters, dresses and shawls cannot be washed in the washer and dried in a dryer. These items should be washed by hand with a mild soap and laid out to dry.
styles:
The styles of the cashmere coat varies. Just a few examples are; the short cashmere jacket, the fingertip car coat, and the cashmere long floor length coat.
Description: With soft and comfortable feeling. Health for our skin.
2011/08/02
lithium nitrate uses
English name: Lithium Nitrate
CAS No. :7790 -69-4
Molecular formula: LiNO3
Storage: sealed in cool and dry save
Molecular Weight: 68.95
Melting point: about 255 ℃
Relative density: 2.38
Status: colorless crystals, hygroscopic. Heated to 600 decomposition, dissolved in about 2 parts water, soluble in ethanol solution was neutral.
Features: strong oxidizing and organic matter to friction or shock can cause a fire or explosion irritation.
Main purposes: for the manufacture of ceramics, fireworks, heat exchange medium, analytical reagent.
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