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Translocation of proteins across archaeal cytoplasmic membranes
Translocation of proteins across archaeal cytoplasmic membranes

... represents a group of organisms distinct from the other two domains. Based upon the habitats from which archaea have been isolated, it is evident that some of the organisms of this domain occupy unique environmental niches. The conditions of such environments may include a lack of oxygen, salt conce ...
PDF
PDF

... Oocytes which had been labelled with [35S]methionine were incubated for 2 min in the fluorescent, DNA-binding dye, 4',6-diamidino-2-phenylindole (DAPI) (Sigma Chemical Co. Ltd), at a concentration of ^O^gml"1 and then examined under fluorescence before freezedrying for electrophoresis. In this way i ...
A New Subunit of Cytochrome b6f Complex Undergoes Reversible
A New Subunit of Cytochrome b6f Complex Undergoes Reversible

... fluoride as a protease inhibitor. The samples were analyzed by urea/ SDS-polyacrylamide gel electrophoresis (PAGE) and immunoblotting. Electron Microscopy—Immunocytochemistry on thin sections was performed according to a previous study (29). Immunogold labeling of thylakoid membrane vesicles was per ...
Chapter 3 - McGraw Hill Higher Education
Chapter 3 - McGraw Hill Higher Education

... folded and twisted into a rounded, threedimensional shape it forms the tertiary structure. • Globular proteins, including enzymes, have tertiary structure. • Proteins that consist of more than one polypeptide have quaternary structure. • When a enzyme loses these levels of structure it is said to ha ...
Processing of a Wheat Light-Harvesting Chlorophyll a/b Protein
Processing of a Wheat Light-Harvesting Chlorophyll a/b Protein

... were incubated with pea chloroplasts, which were then either treated or not treated with thermolysin before lysis. Tl~ermolysin has been shown to preferentially digest outer membrane proteins (10, 20) that have not entered the organelle. The membrane and soluble fractions of the chloroplast were sep ...
Serodiagnosis of Murine Norovirus in Mice Using Recombinant
Serodiagnosis of Murine Norovirus in Mice Using Recombinant

... of mice first recognized in 2003, is prevalent in contemporary research mouse colonies, causes persistent enteric infections, and replicates in dendritic cells and macrophages. Thus, this viral infection has great potential to alter research data obtained from infected mice. As a result, inexpensive ...
mTORC kinase assays
mTORC kinase assays

... 8. Add 20 ul 2x SDS sample buffer to stop the reaction. Samples are boiled for 5 min and then subjected to Western analysis using anti-pT389-S6K1 or anti-pS473-Akt antibody. ...
AlgPred: prediction of allergenic proteins and mapping of
AlgPred: prediction of allergenic proteins and mapping of

... WHO 2001 recommendations and recognized the uncertainties associated with different tests. They suggest weight of evidence approach rather than a specific decision tree approach (suggested in FAO/WHO 2001). They recommended various tests for examining allergenic behavior of proteins that includes so ...
MIBCB Syllabus
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... impart laboratory findings and their implication, in consultation with colleagues. Responsibilities of a Clinical Biochemist The candidate to the Clinical Biochemistry training needs a background of knowledge in biochemistry, physiology, analytical chemistry, biophysics, molecular biology, immunolog ...
structural basis for thermal stability of thermophilic trmd proteins
structural basis for thermal stability of thermophilic trmd proteins

... base pairs which only form two hydrogen bonds. In addition base stacking is perhaps the biggest factor contributing to helical stability. The earlier data analysis of this theory seemed to prove that it had some validity, but in 2001 it was shown that high G-C content is not a direct indication that ...
Chapter 50
Chapter 50

... in red ribbon. The single disulfide bridge linking α-helixes 2 and 3 is shown in yellow. N-linked carbohydrate groups are shown as spacefilling structures in blue. The glycosylphosphatidylinositol (GPI) anchor that attaches PrP to the outer surface of the cell membrane is shown in gold. ...
On The Determination of Enzyme Structure, Function, and
On The Determination of Enzyme Structure, Function, and

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The CamSol Method of Rational Design of Protein Mutants with

... solubility is particularly challenging in the case of these molecules because they should bind strongly their molecular targets and, in order to do so, they must expose on their surface aggregation-prone patches of amino acids. The goal is thus to find ways to maintain the high binding affinity and ...
Protein Synthesis and the Stress Response
Protein Synthesis and the Stress Response

... improve survival to oxidative stress. It has been suggested that tRNA modifications increase the efficiency of translation in this condition, which would be necessary to cope with the degradation of proteins due to loss of function and/or structure [55]. There are some reports in the literature that ...
A survey of conformational and energetic changes in G protein
A survey of conformational and energetic changes in G protein

NAD + , NADP +
NAD + , NADP +

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... The human specific detection polyclonal antibodies were biotinylated. The test samples and biotinylated detection antibodies were added to the wells ...
Biochemical and Cellular Investigation of Vitreoscilla Hemoglobin
Biochemical and Cellular Investigation of Vitreoscilla Hemoglobin

... range of 3-10 (Atto Corporation). The gel was overlaid with 150 µl of upper electrode buffer (0.2 M NaOH). This first-dimension electrophoresis was operated at 300 volts for 3.5 h. Diffusion of proteins from the agarose gel was prohibited by soaking the 1D gel in 2.5 g% trichloroacetic acid (TCA) fo ...
Partial Class Notes Chapters 3 and 5 (4 slides/page)
Partial Class Notes Chapters 3 and 5 (4 slides/page)

... __________________: movement of charged solutes through a gel in response to an electric field __________________________________: chemically inert; polymerized acrylamide matrix of controlled pore size; allows separation of proteins based on mass and charge ...
BCMB 3100 – Chapter 3 (part 1)
BCMB 3100 – Chapter 3 (part 1)

... Work with your group of 4 people and find at least one example of a mutation in humans, or in industryrelevant plants, animals or microbes. Present, on a single, one-sided, typed page, the amino acid mutated, the phenotype of the effect on the organism, the molecular reason that the mutation causes ...
Abundant Expression of ras Proteins in Aplysia Neurons
Abundant Expression of ras Proteins in Aplysia Neurons

... ovotestis (Fig. 4 B, shown compared to a section of cerebral ganglion, Fig. 4 A). Bright fluorescence was also detected in sections of fertilized eggs; sperm and salivary gland were less reactive (data not shown). Much longer photographic exposure revealed that muscle also contains some immunoreacti ...
Basis of preclinical studies_Biochemistry_Practicals_LI
Basis of preclinical studies_Biochemistry_Practicals_LI

... 4. Be able to discuss the significance of alterations of protein amount in blood serum. 1) Biuret reaction Principle: The biuret reaction is a method that can be used to determine the amount of soluble protein in a solution. The biuret reagent (copper sulfate in a strong base) reacts with peptide bo ...
Enzymes
Enzymes

... - many cells are being made and replaced - other internal systems carry out a multitude of other intricate processes - All of these functions involve numerous enzymes. One paper I read estimated 25,000 enzymes are working in our bodies. Some researchers claim they have DNA sequences of more than 100 ...
significance of the putative upstream polybasic nuclear localisation
significance of the putative upstream polybasic nuclear localisation

... PAA-SDS gel electrophoresis PAA-SDS gels (15%) were prepared according to Laemmly (10) and run at 20 mA for 1.5 h. After electrophoresis, the gels were stained by Coomassie blue R250. Protein yield determination Bacterial cells (6 OD595) from overnight cultures of transformed E.coli LE 392 cells wer ...
SUPPLEMENTARY MATERIAL Title: Luteolin attenuate the D
SUPPLEMENTARY MATERIAL Title: Luteolin attenuate the D

... the protein quantities of each sample were determined by a BCA Protein Assay kit ((ibid.) Equal amounts of protein (100 μg) were isolated by 10% SDS-polyacrylamide gel electrophoresis and were electrophoretically transferred to a nitrocellulose membrane. The membrane was blocked with 5% skim milk po ...
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Western blot



The western blot (sometimes called the protein immunoblot) is a widely used analytical technique used to detect specific proteins in a sample of tissue homogenate or extract. It uses gel electrophoresis to separate native proteins by 3-D structure or denatured proteins by the length of the polypeptide. The proteins are then transferred to a membrane (typically nitrocellulose or PVDF), where they are stained with antibodies specific to the target protein. The gel electrophoresis step is included in western blot analysis to resolve the issue of the cross-reactivity of antibodies.There are many reagent companies that specialize in providing antibodies (both monoclonal and polyclonal antibodies) against tens of thousands of different proteins. Commercial antibodies can be expensive, although the unbound antibody can be reused between experiments. This method is used in the fields of molecular biology, immunogenetics and other molecular biology disciplines. A number of search engines, such as CiteAb, Antibodypedia, and SeekProducts, are available that can help researchers find suitable antibodies for use in western blotting.Other related techniques include dot blot analysis, immunohistochemistry and immunocytochemistry where antibodies are used to detect proteins in tissues and cells by immunostaining, and enzyme-linked immunosorbent assay (ELISA).The method originated in the laboratory of Harry Towbin at the Friedrich Miescher Institute. The name western blot was given to the technique by W. Neal Burnette and is a play on the name Southern blot, a technique for DNA detection developed earlier by Edwin Southern. Detection of RNA is termed northern blot and was developed by George Stark at Stanford.
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