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Expression, purification and characterization of azurin derived
Expression, purification and characterization of azurin derived

... In this work, a production strategy was developed to obtain three different azurin derived peptides: Azu 1-50, Azu 1-77 and Azu 80-128. The recent identification of P-cadherin as a possible target protein for azurin lead to the need of having a reproducible method of production of azurin derived pep ...
Benzoate mediates the simultaneous repression of anaerobic 4
Benzoate mediates the simultaneous repression of anaerobic 4

... cells were used as inoculum (data not shown). A notable observation is the unaltered utilization hierarchy with the ternary mixture, i.e. benzoate over succinate and 4methylbenzoate, mirroring the preferences observed with respective binary mixtures (Figure 1a–c). Transcript and protein dynamics (te ...
Organic biomarkers in deep-sea regions affected
Organic biomarkers in deep-sea regions affected

... and T = −80 ◦ C) for 24 h and prepared for analysis by highperformance liquid chromatography (HPLC) (pigments, amino acids and carbohydrates) or gas chromatography (GC) (fatty acids). The SPR surface sediment samples kept in the small tubes were subsampled at 1 cm intervals down to 5 cm to have the ...
212_spring_2005_Platelets
212_spring_2005_Platelets

Bio 226: Cell and Molecular Biology
Bio 226: Cell and Molecular Biology

... must assemble intermediates that can be broken into 5 C sugars after adding 3C subunit ...
Microbiology with Diseases by Body System, 3e
Microbiology with Diseases by Body System, 3e

... 6) Carbohydrates are composed of carbon, hydrogen, and oxygen. Answer: TRUE Bloom's Rank: Knowledge Section: Organic Macromolecules 7) Denaturation of a protein is always permanent. Answer: FALSE Bloom's Rank: Comprehension Section: Organic Macromolecules 8) The long-term chemical energy storage mol ...
Essentiality of Histidine in Ruminant and Other Animals Including
Essentiality of Histidine in Ruminant and Other Animals Including

... (steers), it was similarly demonstrated that the first, second and third limiting amino acids of rumen microbial proteins for these animals were methionine, lysine and threonine, respectively, based on their experimental results obtained after feeding the animals with pure diets containing urea as a ...
Life Inside a Microtubule
Life Inside a Microtubule

Amino Acids, Proteins, and Enzymes
Amino Acids, Proteins, and Enzymes

... finished products and goes back to work on more substrate. ...
and Rhizobiales-Like PPP-Family Protein Phosphatases from
and Rhizobiales-Like PPP-Family Protein Phosphatases from

... phosphatase expression in, and purification from, Escherichia coli revealed unique biochemical characteristics including a complete insensitivity to PPP-family protein phosphatase inhibitors okadaic acid and microcystin-LR, as well as diversity in their phosphorylated substrate specificities. Bioinf ...
Computational Studies of Multi-Active Site Enzymes
Computational Studies of Multi-Active Site Enzymes

... GlmS: MD and QM/MM studies were performed to examine the (i) protonation state of the mechanistically important amine of its N-terminal cysteinyl (Cys1) and its effect on its glutaminase domain and, (ii) mechanism by which it deaminates its glutamine substrate. Proton affinity studies suggest that a ...
Alternative mRNA Splicing Generates the Two
Alternative mRNA Splicing Generates the Two

... the first 22 nucleotides of the intervening sequence were retained in the mature rubisco activase mRNA. The 22nucleotide auxiliary exon contains an in-frame ochre termination codon and leads to the synthesis of a 41-kilodalton polypeptide. Removal of the entire 137-nucleotide intervening sequence re ...
AMINO ACID OXIDATION AND THE PRODUCTION OF UREA
AMINO ACID OXIDATION AND THE PRODUCTION OF UREA

A Raman spectroscopic study of the interaction between nucleotides
A Raman spectroscopic study of the interaction between nucleotides

... acids, the composition and sequence of which are known.536717The very large amount of acidic amino acids (about 25-30% is present as aspartic and glutamic acid residues) results in an isoelectric point a t pH 5.6 Among the other residues are 18 phenylalanines, 5 tryptophans, and 8 tyrosines. The pre ...
Metabolic fate and effects of saturated and unsaturated fatty acids in
Metabolic fate and effects of saturated and unsaturated fatty acids in

... In the presence of both acetate and myristate glucose utilization was unaltered. On the other hand, glucose utilization was significantly reduced when cells were exposed to either palmitate, oleate, linoleate or arachidonate. DISCUSSION The fatty acids used in the present study are readily extracted ...
Defining the complementarities between antibodies and haptens to
Defining the complementarities between antibodies and haptens to

... Background: Low molecular weight haptens (<1000 Da) cannot be recognized by the immune system unless conjugated to larger carrier molecules. Antibodies to these exceptionally small antigens can still be generated with exquisite sensitivity. A detailed understanding at the molecular level of this inc ...
ADVANCES IN AGRICULTURAL SCIENCES XIV (1–2)
ADVANCES IN AGRICULTURAL SCIENCES XIV (1–2)

... have broad immunostimulating properties, while their elevated level as a result of stress causes immunosuppressive action (Webster-Marketon and Glaser 2008, Aguilera 2010). Stress is one of the factors activating sympathetic nervous system, as it was evidenced that its activation results in release ...
integumentary amino acid transport and metabolism in the apodous
integumentary amino acid transport and metabolism in the apodous

... intracellular concentrations of free amino acids (Fredericq, 1901). Many cellular processes involved with synthesis and degradation continually tap this pool of reactive substrates. In addition, these compounds play an important role in cellular osmo-regulation, serving as osmotic effector substance ...
Functional characterization of polypeptide release factor 1b in the
Functional characterization of polypeptide release factor 1b in the

CHAPTER 15 - GLYCOGEN METABOLISM AND
CHAPTER 15 - GLYCOGEN METABOLISM AND

A conserved N-‐terminal domain of Rif2 regulates telomere length in
A conserved N-‐terminal domain of Rif2 regulates telomere length in

... A  protein-­‐counting  model  for  negative  regulation  of  telomere  elongation  was  first   proposed  in  yeast  (Marcand  et  al.  1997).  This  model  suggests  the  more   Rap1/Rif1/Rif2  complexes  that  are  bound  along  the  telo ...
Give Me the PHE Facts
Give Me the PHE Facts

... Facts about What It Takes Having phe levels that are safe for you takes-- planning and keeping track of your diet  working with your parents and the people at the PKU clinic  finding some good friends you can talk to about all of this  keeping up on the latest about PKU in the National PKU News ...
Enzyme - MACscience
Enzyme - MACscience

... Enzymes involved in catabolic reactions can cause a single substrate molecule to be drawn into the active site. Chemical bonds are broken, causing the substrate molecule to break apart to become two separate molecules. Catabolic reactions include: ...
ch_25_lecture_presentation
ch_25_lecture_presentation

... • Breaks down 2 pyruvic acid molecules • Produces 2 ATP by way of GTP • Transfers H atoms to NADH and FADH2 • Coenzymes provide electrons to ETS ...
Eucalyptus Arabidopsis grandis thaliana
Eucalyptus Arabidopsis grandis thaliana

... SuSy amino acid residue determines its cellular distribution. In order to elucidate the role of SuSy in cellulose biosynthesis a number of questions surrounding the function and regulation of SuSy need to be addressed. These questions include: What is the nature of the association between SuSy and ...
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Proteolysis



Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids. Uncatalysed, the hydrolysis of peptide bonds is extremely slow, taking hundreds of years. Proteolysis is typically catalysed by cellular enzymes called proteases, but may also occur by intra-molecular digestion. Low pH or high temperatures can also cause proteolysis non-enzymatically.Proteolysis in organisms serves many purposes; for example, digestive enzymes break down proteins in food to provide amino acids for the organism, while proteolytic processing of a polypeptide chain after its synthesis may be necessary for the production of an active protein. It is also important in the regulation of some physiological and cellular processes, as well as preventing the accumulation of unwanted or abnormal proteins in cells. Consequently, dis-regulation of proteolysis can cause diseases, and is used in some venoms to damage their prey.Proteolysis is important as an analytical tool for studying proteins in the laboratory, as well as industrially, for example in food processing and stain removal.
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