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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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.
more about:http://www.probioticonline.net
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