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Poster
Poster

... The protein known as H-Ras GTPase is essential to proper biological functioning in the entire web of life. The main function of this protein is giving the "stop" signal to the process of cell reproduction. Unfortunately, this protein is not perfect and severe consequences, such as cancer, can arise ...
MinuteTM Plasma Membrane Protein Isolation Kit
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... major problem because variation in the duration of homogenization results in a different protein profile every time therefore resulting in a significant variation in final PM purity ( inter-experiment variation). As a comparison, we use the same amount of starting cell, defined centrifugal force and ...
Steven Bhutra - Proteomics of Alzheimer's Disease
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... Alzheimer’s disease (AD) is the most common form of dementia in the elderly. This incurable neurological degenerative disease is typically diagnosed in people over 65. Alzheimer’s can be incredibly difficult to diagnose because many of the symptoms can be mistakenly attributed to age-related concer ...
Relative Requirements for Magnesium of Protein and Chlorophyll
Relative Requirements for Magnesium of Protein and Chlorophyll

... a failure in the production of Chl might precede a decrease in the low levels of iron while protein accumulation continued at normal over-all rate of protein synthesis. exponential rates. Those results were consistent with a rather strict As our test organism we chose Euglena gracilis with glucose a ...
Print Version
Print Version

... components are combined; the small subunit is 30 s and the large 50 s when measured apart. c. ribosomes in eukaryotic cytoplasm are slightly larger; 80s overall with 35s and 60 s subunits d. each component has a long piece of RNA (rRNA) that serves as a scaffolding for 20 or more proteins bacterial ...
(PTH), or parathormone, is secreted
(PTH), or parathormone, is secreted

Amino Acids
Amino Acids

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Research Express@NCKU
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... defenses against nodavirus infection in grouper cells remains unclear. Our team focuses at the host-virus interaction study over six years. Piscine nodavirus, a member of the Betanodavirdae family, is the causative agent of viral nervous necrosis (fish encephalitis) that results in high mortality ra ...
Chapter 5 part II
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... • Functional protein microarray. Native proteins or peptides are individually purified or synthesized using highthroughput approaches and arrayed onto a suitable surface to form the functional protein microarrays. • These chips are used to analyze protein activities, binding properties and post-tran ...
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Organic Macromolecules: Biological macromolecules
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... The polymer polyethene for example, is made up of many ethene monomers that have been joined into a polymer chain. Polymers form through a process called polymerisation. Two examples of polymerisation reactions are addition and condensation reactions. An addition reaction occurs when unsaturated mon ...
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... life. It also includes the notion that the ecosystems on the Earth are protected by negative feedback loops that help maintain homeostasis. f. It is the hypothesis that the zircon crystals found in 3.8 billion year old rocks were produced by ancient life over 4 billion years ago. The zircon crystals ...
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coIP就是co-immunoprecipitation,假如有两种蛋白质A,B相互作用
coIP就是co-immunoprecipitation,假如有两种蛋白质A,B相互作用

... Transient interactions are defined by their temporal interaction with other proteins and are the most challenging protein:protein interactions to isolate. These interactions are more difficult to identify using physical methods like pull-down assays because the complex may dissociate during the assa ...
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... The protein kinase PERK couples protein folding in the endoplasmic reticulum (ER) to polypeptide biosynthesis by phosphorylating the alpha subunit of eukaryotic translation initiation factor 2 (eIF2alpha), attenuating translation initiation in response to ER stress. The exocrine and endocrine pancre ...
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... researcher does not know whether or not the results will support the null hypothesis. However, it is common for the researcher to believe that the result that will be obtained will be within a range of known possibilities. Occasionally, however, the result is completely unexpected—it was an unknown ...
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... Another option would be to have more advanced students create these tools as part of an extension or enrichment activity. The instructions for these stamps are explained in detail in Lesson 1. All 20 amino acids could be be made into stamps, or another option is to make only the amino acids coding f ...
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... there are more than 170 amino acids known to occur in living systems (Meister, 1965). Animals including man are unable to synthesize some amino acids called "essential amino acids" from simple ingredients. These essential amino acids are isoleucine, phenylalanine, ...
the PDF for the Organix Test
the PDF for the Organix Test

... Carnitine helps your body use fatty acids. !  If carnitine is sufficient long-chain fatty acids go through beta-oxidation in the mitochondria. !  If there are inadequate amounts of carnitine, the long-chain fatty acids will get processed outside of the mitochondria !  Adipate and suberate are by-pro ...
Chapter 3: Organic Molecules
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...  Trans fats elevate levels of cholesterol and LDL (low density lipoprotein) in the blood.  This can lead to elevated risk of heart attacks. Now manufacturers are required to list trans fat content. ...
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Protein (nutrient)



Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue, and can also serve as a fuel source. As a fuel, proteins contain 4 kcal per gram, just like carbohydrates and unlike lipids, which contain 9 kcal per gram. The most important aspect and defining characteristic of protein from a nutritional standpoint is its amino acid composition.Proteins are polymer chains made of amino acids linked together by peptide bonds. During human digestion, proteins are broken down in the stomach to smaller polypeptide chains via hydrochloric acid and protease actions. This is crucial for the synthesis of the essential amino acids that cannot be biosynthesized by the body.There are nine essential amino acids which humans must obtain from their diet in order to prevent protein-energy malnutrition. They are phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine. There are five dispensable amino acids which humans are able to synthesize in the body. These five are alanine, aspartic acid, asparagine, glutamic acid and serine. There are six conditionally essential amino acids whose synthesis can be limited under special pathophysiological conditions, such as prematurity in the infant or individuals in severe catabolic distress. These six are arginine, cysteine, glycine, glutamine, proline and tyrosine.Humans need the essential amino acids in certain ratios. Some protein sources contain amino acids in a more or less 'complete' sense. This has given rise to various ranking systems for protein sources, as described in the article.Animal sources of protein include meats, dairy products, fish and eggs. Vegan sources of protein include whole grains, pulses, legumes, soy, and nuts. Vegetarians and vegans can get enough essential amino acids by eating a variety of plant proteins. It is commonly believed that athletes should consume a higher-than-normal protein intake to maintain optimal physical performance.
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