7.013 Spring 2005 Problem Set 1Solutions
... a) The majority of the molecules that constitute a membrane belong to what class of macromolecules? _______________________Lipid, Phospholipid_________ b) Explain the important qualities/properties of these molecules that allow them to form membranes. Phospholipids possess hydrophilic “heads” and hy ...
... a) The majority of the molecules that constitute a membrane belong to what class of macromolecules? _______________________Lipid, Phospholipid_________ b) Explain the important qualities/properties of these molecules that allow them to form membranes. Phospholipids possess hydrophilic “heads” and hy ...
EFFECTS OF BIOREACTOR OPERATION PARAMETERS ON
... In this study, the effects of oxygen transfer (OT) on β-lactamase production and on intracellular reaction rates were investigated with Bacillus licheniformis ATCC 2597. In order to clarify the oxygen transfer effects on the production of β-lactamase, firstly a glucose based defined medium was desig ...
... In this study, the effects of oxygen transfer (OT) on β-lactamase production and on intracellular reaction rates were investigated with Bacillus licheniformis ATCC 2597. In order to clarify the oxygen transfer effects on the production of β-lactamase, firstly a glucose based defined medium was desig ...
Safety Assessment of Centella asiatica
... asiaticin (p-benzoyloxy methyl-butyl benzoate) centellicin (1-(2',3'-dihydroxypropyl)-2-en-3-methyl-6-hydroxy-9-yn-undecanoate) ...
... asiaticin (p-benzoyloxy methyl-butyl benzoate) centellicin (1-(2',3'-dihydroxypropyl)-2-en-3-methyl-6-hydroxy-9-yn-undecanoate) ...
Fatty Acid-Mediated Quorum Sensing Systems Stenotrophomonas maltophilia DOCTORAL THESIS
... 4.1.1 Two variants of rpf cluster with main differences in rpfF and rpfC genes are distributed among S. maltophilia population. ......................................................... 48 4.1.2 RpfC-1 but not RpfC-2 contains a transmembrane sensor input domain highly related to the Xcc RpfH-RpfC co ...
... 4.1.1 Two variants of rpf cluster with main differences in rpfF and rpfC genes are distributed among S. maltophilia population. ......................................................... 48 4.1.2 RpfC-1 but not RpfC-2 contains a transmembrane sensor input domain highly related to the Xcc RpfH-RpfC co ...
Towards functional effects of polyphenols : modulation of energy
... polyphenol aglycones and are therefore easily eliminated through bile and urine [36-38]. Chronic administration of selected polyphenols could possibly increase the systemic exposure considerably. Flavonols have plasma half lives of ~20h, whereas catechins and anthocyanins are eliminated 5-10 times f ...
... polyphenol aglycones and are therefore easily eliminated through bile and urine [36-38]. Chronic administration of selected polyphenols could possibly increase the systemic exposure considerably. Flavonols have plasma half lives of ~20h, whereas catechins and anthocyanins are eliminated 5-10 times f ...
Aqua-BioSci. Monogr. (ABSM), Vol. 1, No. 2, pp. 1–57 (2008)
... The current methods of isolated hepatocytes are based on the procedure of Berry and Friend (1969). Berry (1976) has pointed out that any successful method for liver cell separation must involve three critical steps, namely exposure of the liver to a calcium-free medium, digestion with collagenase, a ...
... The current methods of isolated hepatocytes are based on the procedure of Berry and Friend (1969). Berry (1976) has pointed out that any successful method for liver cell separation must involve three critical steps, namely exposure of the liver to a calcium-free medium, digestion with collagenase, a ...
Pushing The Boundaries of Bioluminescence Using Synthetic
... to a range that is more able to penetrate through tissue, but at a cost of lower signal intensity. I developed mutant luciferases that increase the maximal photon flux with the synthetic luciferins over what is achievable with the wild-type luciferase, and furthermore discriminate between substrates ...
... to a range that is more able to penetrate through tissue, but at a cost of lower signal intensity. I developed mutant luciferases that increase the maximal photon flux with the synthetic luciferins over what is achievable with the wild-type luciferase, and furthermore discriminate between substrates ...
2005 - Journal of Experimental Biology
... levels. Such muscle was capable of exercising without fatigue due to high blood flow levels allowing the rapid turnover of H+ and lactate (and presumably other metabolites that might themselves be involved in a fatigue process) within the cells. Recent research suggests that mechanical trade-offs be ...
... levels. Such muscle was capable of exercising without fatigue due to high blood flow levels allowing the rapid turnover of H+ and lactate (and presumably other metabolites that might themselves be involved in a fatigue process) within the cells. Recent research suggests that mechanical trade-offs be ...
Creatine A Complete Users Guide
... from food by our bodies. It provides the energy muscles need to move and is often used by athletes to improve their sports performance. Fair Trading Director Deborah Battell said that in the Commission's view, Muscle Marketing USA falsely represented that 5ml of its serum yielded the equivalent of 2 ...
... from food by our bodies. It provides the energy muscles need to move and is often used by athletes to improve their sports performance. Fair Trading Director Deborah Battell said that in the Commission's view, Muscle Marketing USA falsely represented that 5ml of its serum yielded the equivalent of 2 ...
Problem Set
... Kekule von Stradonitz, August (1929 - 1896) born in Darmstadt, Germany is described as a chemist who laid the groundwork for the modern structural theory in organic chemistry. In 1858 he showed that carbon is tetravalent and could form long chains. "One night in 1865 Kekule dreamed of the benzene mo ...
... Kekule von Stradonitz, August (1929 - 1896) born in Darmstadt, Germany is described as a chemist who laid the groundwork for the modern structural theory in organic chemistry. In 1858 he showed that carbon is tetravalent and could form long chains. "One night in 1865 Kekule dreamed of the benzene mo ...
The interaction between bacteria and bile
... greatly increases the surface area of fat, making it available for digestion by lipases, which cannot access the inside of fat droplets. Bile acids also function as ‘‘lipid carriers’’ in that they can solubilize lipids by forming micelles and thus allow their transport in an aqueous environment, whi ...
... greatly increases the surface area of fat, making it available for digestion by lipases, which cannot access the inside of fat droplets. Bile acids also function as ‘‘lipid carriers’’ in that they can solubilize lipids by forming micelles and thus allow their transport in an aqueous environment, whi ...
Full-Text PDF
... to the cellulose and hemicellulose components. Historically, lignin has been burned as a source of process heat, but this heat is usually in excess of the process energy demands. Current models indicate that development of an economically competitive biorefinery system requires adding value to ligni ...
... to the cellulose and hemicellulose components. Historically, lignin has been burned as a source of process heat, but this heat is usually in excess of the process energy demands. Current models indicate that development of an economically competitive biorefinery system requires adding value to ligni ...
Allelic Amino Acid Substitutions Affect the
... (2). However, more than 20 rare allozymes have been described, often only in heterozygous combinations because of their low allelic frequency (3). The two most common PLAP phenotypes, S (slow) and F (fast), differ only in an Arg#{176} to p2o9 substitution (4), but additional amino acid replacements ...
... (2). However, more than 20 rare allozymes have been described, often only in heterozygous combinations because of their low allelic frequency (3). The two most common PLAP phenotypes, S (slow) and F (fast), differ only in an Arg#{176} to p2o9 substitution (4), but additional amino acid replacements ...
Soybean Phospholipids
... Mixed fatty acids and mixed fatty acid ethyl ester are added as fluidity agents during the vacuum concentrating procedure to improve the fluidic property of concentrated phospholipids and prevent phospholipids separating with the oil and guarantee the stability of phospholipids products. The product ...
... Mixed fatty acids and mixed fatty acid ethyl ester are added as fluidity agents during the vacuum concentrating procedure to improve the fluidic property of concentrated phospholipids and prevent phospholipids separating with the oil and guarantee the stability of phospholipids products. The product ...
Enzyme Substrates and Assays
... Data Table 10.3 Detecting Enzymes That Metabolize Phosphates and Polyphosphates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 Product List 10.3 Detecting Enzymes That Metabolize Phosphates and Polyphosphates . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Data Table 10.3 Detecting Enzymes That Metabolize Phosphates and Polyphosphates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 Product List 10.3 Detecting Enzymes That Metabolize Phosphates and Polyphosphates . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Midazolam Oxidation by Cytochrome P450 3A4 and Active
... The oxidation of MDZ by CYP3A4 has been the focus of many in vitro investigations (Kronbach et al., 1989; Gorski et al., 1994; Ghosal et al., 1996; Maenpaa et al., 1998; Hosea et al., 2000; Wang et al., 2000). These studies have found very different KM values for the formation of 1⬘-OH MDZ compared ...
... The oxidation of MDZ by CYP3A4 has been the focus of many in vitro investigations (Kronbach et al., 1989; Gorski et al., 1994; Ghosal et al., 1996; Maenpaa et al., 1998; Hosea et al., 2000; Wang et al., 2000). These studies have found very different KM values for the formation of 1⬘-OH MDZ compared ...
Pseudomonas diminuta - International Journal of Systematic and
... The fatty acids that accounted for less than 1% of the total fatty acids in all of the strains studied are not shown. We determined the fatty acid compositions of 19 B. diminuta strains, 10 B. vesiculuris strains, and 4 [S.] yanoikuyae strains. For these taxa and for Rhizomonas-Sphingomonas-likestra ...
... The fatty acids that accounted for less than 1% of the total fatty acids in all of the strains studied are not shown. We determined the fatty acid compositions of 19 B. diminuta strains, 10 B. vesiculuris strains, and 4 [S.] yanoikuyae strains. For these taxa and for Rhizomonas-Sphingomonas-likestra ...
Reabsorption of the Nephrotoxin Ochratoxin A Along the Rat
... proportional to the concentration of OTA. Thus, the FR determined during infusion with 1026 mol/liter is the same as for lower concentrations that occur during natural exposure (Kuiper-Goodman and Scott, 1989). Furthermore, manipulation of OTA reabsorption (as discussed below) should be a tool to in ...
... proportional to the concentration of OTA. Thus, the FR determined during infusion with 1026 mol/liter is the same as for lower concentrations that occur during natural exposure (Kuiper-Goodman and Scott, 1989). Furthermore, manipulation of OTA reabsorption (as discussed below) should be a tool to in ...
A plant vacuolar system : the lutoïds from Hevea brasiliensis latex
... are about 10 times more concentrated and basic amino acids are also accumulated. Acid hydrolases, characteristic of animal lysosomes, are present in the lutoids which also contain peroxidase, lysozyme and a-mannosidase. The lutoid membrane has an Mg-dependent ATPase which ensures an influx of proton ...
... are about 10 times more concentrated and basic amino acids are also accumulated. Acid hydrolases, characteristic of animal lysosomes, are present in the lutoids which also contain peroxidase, lysozyme and a-mannosidase. The lutoid membrane has an Mg-dependent ATPase which ensures an influx of proton ...
Carnitine-Metabolism and Functions
... histone and a variety of proteins. It is not known whether more than one enzyme is active in protein lysine methylation. Mono-, di-, and trimethylated lysines are all found in different proteins (321), but only the trimethyllysine is converted to carnitine (235). The same derivatives have been isola ...
... histone and a variety of proteins. It is not known whether more than one enzyme is active in protein lysine methylation. Mono-, di-, and trimethylated lysines are all found in different proteins (321), but only the trimethyllysine is converted to carnitine (235). The same derivatives have been isola ...
Pathways of NeurSospora crassa and Saccharomyces cerevisiaet
... mM for the N. crassa enzyme. They are also high for the S. (ereviisiae enzyme (258), although specific values have not been reported. The unusually high pH optimum and high substrate requirements of the enzyme may be related to its location within the small volume of the mitochondria, where it is lo ...
... mM for the N. crassa enzyme. They are also high for the S. (ereviisiae enzyme (258), although specific values have not been reported. The unusually high pH optimum and high substrate requirements of the enzyme may be related to its location within the small volume of the mitochondria, where it is lo ...
Leukocyte lipid bodies — Biogenesis and functions in inflammation
... the periphery of the lipid body. Analogously, the transmembrane spanning enzyme, leukotriene C4 (LTC4) synthase, was localized at lipid bodies [39]. As described in detailed below, eicosanoid-forming enzymes localized at lipid bodies retain their functional enzymatic capacity since newly generated a ...
... the periphery of the lipid body. Analogously, the transmembrane spanning enzyme, leukotriene C4 (LTC4) synthase, was localized at lipid bodies [39]. As described in detailed below, eicosanoid-forming enzymes localized at lipid bodies retain their functional enzymatic capacity since newly generated a ...
Biliary Physiology
... stored in the gallbladder. This storage is due to the absorptive capacity of the gallbladder. It rapidly absorbs sodium, chloride, and water against significant concentration gradients, concentrating the bile 10-fold and leading to a marked change in bile composition. This rapid absorption is one mec ...
... stored in the gallbladder. This storage is due to the absorptive capacity of the gallbladder. It rapidly absorbs sodium, chloride, and water against significant concentration gradients, concentrating the bile 10-fold and leading to a marked change in bile composition. This rapid absorption is one mec ...
Auxin: Regulation, Action, and Interaction
... pathways is fully elucidated. Plants can also obtain IAA by b-oxidation of indole-3-butyric acid (IBA), a second endogenous auxin, or by hydrolysing IAA conjugates, in which IAA is linked to amino acids, sugars or peptides. To permanently inactivate IAA, plants can employ conjugation and direct oxid ...
... pathways is fully elucidated. Plants can also obtain IAA by b-oxidation of indole-3-butyric acid (IBA), a second endogenous auxin, or by hydrolysing IAA conjugates, in which IAA is linked to amino acids, sugars or peptides. To permanently inactivate IAA, plants can employ conjugation and direct oxid ...
The Structure of Collagen within Parchment
... including hair, the materials in between the der-mis and epidermis and lipids are removed in the lime bath. The lime solution has a high pH, usually 10-12. This has the effect of placing most amino acid residues above their isoelectric point, and thus making the carboxy terminus negatively charged. ...
... including hair, the materials in between the der-mis and epidermis and lipids are removed in the lime bath. The lime solution has a high pH, usually 10-12. This has the effect of placing most amino acid residues above their isoelectric point, and thus making the carboxy terminus negatively charged. ...
Hepoxilin
Hepoxilins (HxA3 and HxB3) are nonclassic eicosanoid hormones involved in inflammation.