
Metabolic profiling during nutrient limited growth in bakers` yeast
... nucleotides, which are also products of glutamine, were not similarly decreased. Examination of the growth-rate slope across all amino acids revealed that the concentration of every amino acid dropped with increasingly severe ammonium limitation, with the strongest response for glutamine, histidine ...
... nucleotides, which are also products of glutamine, were not similarly decreased. Examination of the growth-rate slope across all amino acids revealed that the concentration of every amino acid dropped with increasingly severe ammonium limitation, with the strongest response for glutamine, histidine ...
Transcriptomic and Reverse Genetic Analyses of Branched
... (Fig. 1A), a model that is supported by isotopic labeling studies (van der Hoeven and Steffens, 2000; Kroumova and Wagner, 2003). Contrasting with tomato and Datura, several tobacco species (including N. benthamiana) and Petunia species were shown by similar methodology to produce extended BCFAs (an ...
... (Fig. 1A), a model that is supported by isotopic labeling studies (van der Hoeven and Steffens, 2000; Kroumova and Wagner, 2003). Contrasting with tomato and Datura, several tobacco species (including N. benthamiana) and Petunia species were shown by similar methodology to produce extended BCFAs (an ...
Metabolism of Selenoamino Acids and Contribution of Selenium
... is metabolized by reduced glutathione (GSH) and/or glutathione reductase to hydrogen selenide (H2Se) via selenocysteine-glutathione selenenyl sulfide (CySeSG). The H2Se is a key intermediate in the methylation process of inorganic and organic selenium compounds. Accumulation of H2Se resulting from i ...
... is metabolized by reduced glutathione (GSH) and/or glutathione reductase to hydrogen selenide (H2Se) via selenocysteine-glutathione selenenyl sulfide (CySeSG). The H2Se is a key intermediate in the methylation process of inorganic and organic selenium compounds. Accumulation of H2Se resulting from i ...
DOCTORAL THESIS
... transglycosylase activity catalyzing cleavage and reconection of xyloglucan molecules, which is proposed to be involved in secondary cell wall morphogenesis. The creation of a family 16 carbohydrate active enzyme β-glucanase/XET hybrids were attempted in order to design a chimeric enzyme with one or ...
... transglycosylase activity catalyzing cleavage and reconection of xyloglucan molecules, which is proposed to be involved in secondary cell wall morphogenesis. The creation of a family 16 carbohydrate active enzyme β-glucanase/XET hybrids were attempted in order to design a chimeric enzyme with one or ...
Synonymous codon usage patterns in different parasitic
... Most amino acids are encoded by multiple codons. In most cases, the synonymous codons are not used randomly in different genomes (Grantham et al., 1980; Lloyd and Sharp, 1992). Furthermore, the pattern of codon usage can vary considerably among organisms, and also among genes from the same genome. C ...
... Most amino acids are encoded by multiple codons. In most cases, the synonymous codons are not used randomly in different genomes (Grantham et al., 1980; Lloyd and Sharp, 1992). Furthermore, the pattern of codon usage can vary considerably among organisms, and also among genes from the same genome. C ...
Cloning and sequencing of a gene encoding acidophilic amylase
... Purification of the enzyme and determination of peptide sequences. Plate cultures of B. acidocaldarius were suspended in 0.5 M-Na acetate (PH 50), incubated for 30 min at 4 "C, and the cells were removed by centrifugation at 8000 g for 20 min. The supernatant was centrifuged again at 40000 g for 30 ...
... Purification of the enzyme and determination of peptide sequences. Plate cultures of B. acidocaldarius were suspended in 0.5 M-Na acetate (PH 50), incubated for 30 min at 4 "C, and the cells were removed by centrifugation at 8000 g for 20 min. The supernatant was centrifuged again at 40000 g for 30 ...
Cell wall components and intact membrane lipids as - E
... Marine sediments have been estimated to host 0.6-30% of the total living biomass on Earth. Molecular biology has revealed the diversity and distribution of these benthic microorganisms. However, they are still poorly uncharacterized life forms, and consequently, their physiologies and roles in globa ...
... Marine sediments have been estimated to host 0.6-30% of the total living biomass on Earth. Molecular biology has revealed the diversity and distribution of these benthic microorganisms. However, they are still poorly uncharacterized life forms, and consequently, their physiologies and roles in globa ...
Are there errors in glycogen biosynthesis and is laforin a repair
... metabolic function. Since the 1980s, however, it has been recognized that glycogen contains trace amounts of phosphate [16–18], 1 phosphate per 500 to 1500 glucoses in muscle glycogen [2,3]. In mice, this level of phosphorylation is invariant with age [3]. From analyses of rabbit muscle glycogen, th ...
... metabolic function. Since the 1980s, however, it has been recognized that glycogen contains trace amounts of phosphate [16–18], 1 phosphate per 500 to 1500 glucoses in muscle glycogen [2,3]. In mice, this level of phosphorylation is invariant with age [3]. From analyses of rabbit muscle glycogen, th ...
C 2 R
... 87 were compared. In most cases Phe87, was mutated to amino acids with small nonpolar side chains (Gly, Ala, Leu, Ile, Val), whereas only two uncharged polar amino acids (Ser, Tyr) were evaluated. Dependent on the substrate tested and the enzyme template, the type of mutation of Phe87 has differenti ...
... 87 were compared. In most cases Phe87, was mutated to amino acids with small nonpolar side chains (Gly, Ala, Leu, Ile, Val), whereas only two uncharged polar amino acids (Ser, Tyr) were evaluated. Dependent on the substrate tested and the enzyme template, the type of mutation of Phe87 has differenti ...
THE LIVER AS AN ORGAN
... and processes them according to need. The liver produces albumin, fibrinogen, immunoglobulins, binding proteins, cholesterol, lipoproteins, bile, and other important molecules. Cholesterol production and excretion: The body requires cholesterol, and although this substance can be synthesized by many ...
... and processes them according to need. The liver produces albumin, fibrinogen, immunoglobulins, binding proteins, cholesterol, lipoproteins, bile, and other important molecules. Cholesterol production and excretion: The body requires cholesterol, and although this substance can be synthesized by many ...
Oxidative ortho-C-N Fusion of Aniline by OsO4. Isolation
... The organic reaction, as shown in Scheme 2, involves 2eoxidation of aromatic amines. Thus, the formation of the bischelate, 1 (Scheme 1) from 4ArNH2 and OsO4 needs a transfer of a total of four electrons. In comparison, the metal oxidation level in the product 1 is only two units less than that in t ...
... The organic reaction, as shown in Scheme 2, involves 2eoxidation of aromatic amines. Thus, the formation of the bischelate, 1 (Scheme 1) from 4ArNH2 and OsO4 needs a transfer of a total of four electrons. In comparison, the metal oxidation level in the product 1 is only two units less than that in t ...
Document
... 24) Many defined growth media that support microbial growth lack malonate, which is an important precursor for biosynthesis of lipid membranes. Based on this, we can infer cells also must have a metabolic pathway to generate malonate from other compounds. Answer: TRUE Bloom's Taxonomy: Synthesis Ch ...
... 24) Many defined growth media that support microbial growth lack malonate, which is an important precursor for biosynthesis of lipid membranes. Based on this, we can infer cells also must have a metabolic pathway to generate malonate from other compounds. Answer: TRUE Bloom's Taxonomy: Synthesis Ch ...
10 Translocation in the Phloem Chapter
... between the two cells. The plasmodesmata are often complex and branched on the companion cell side. Companion cells play a role in the transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor (small) veins of the leaf. They are also thought to tak ...
... between the two cells. The plasmodesmata are often complex and branched on the companion cell side. Companion cells play a role in the transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor (small) veins of the leaf. They are also thought to tak ...
TRIzol Reagent
... TRIzol Reagent is a ready to use mixture of phenol, guanidine isothiocyanate, red dye and other proprietary components that can be used to isolate total RNA in 1 hour in a single step. DNA and proteins can be recovered with sequential precipitation from the organic phase. TRIzol was developed by Pio ...
... TRIzol Reagent is a ready to use mixture of phenol, guanidine isothiocyanate, red dye and other proprietary components that can be used to isolate total RNA in 1 hour in a single step. DNA and proteins can be recovered with sequential precipitation from the organic phase. TRIzol was developed by Pio ...
pu 07 40adamson
... and the imidazole of histidine-165 that were shown to play key roles in the hydrolysis of TEOS.19 These functionalities were proposed as participants in the formation of a transitory pentavalent silicon species stabilized through a donor bond to the imidazole nitrogen. This mechanism for the hydroly ...
... and the imidazole of histidine-165 that were shown to play key roles in the hydrolysis of TEOS.19 These functionalities were proposed as participants in the formation of a transitory pentavalent silicon species stabilized through a donor bond to the imidazole nitrogen. This mechanism for the hydroly ...
Substrate Specificity of Human Kallikreins 1 and 6
... of KLK1 mentioned above. Specifically, Angelo et al. reported that only Arg is accepted in the S1 subsite of KLK6 whereas S2 strongly prefers Phe and, to a lesser extent Leu, over all other amino acids (Angelo et al. 2006). The determination of protease specificity using positional libraries of FRET ...
... of KLK1 mentioned above. Specifically, Angelo et al. reported that only Arg is accepted in the S1 subsite of KLK6 whereas S2 strongly prefers Phe and, to a lesser extent Leu, over all other amino acids (Angelo et al. 2006). The determination of protease specificity using positional libraries of FRET ...
The Art of Multiple Sequence Alignment in R - decipher
... of the same kind. In this case, multiple alignment works by aligning two sequences, merging with another sequence, merging with another set of sequences, and so-forth until all the sequences are aligned. This process is iterated to further refine the alignment. There are other functions that extend ...
... of the same kind. In this case, multiple alignment works by aligning two sequences, merging with another sequence, merging with another set of sequences, and so-forth until all the sequences are aligned. This process is iterated to further refine the alignment. There are other functions that extend ...
CHARACTERIZATION OF B-LACTAMASES FROM TWO B
... in a curve with a sort of linearity. As the concentration of substrate increased, this linearity decreased until any further increase in the substrate concentration did not show significant increase or expressed a little decrease in the velocity of the enzymatic reaction. Indeed, the present results ...
... in a curve with a sort of linearity. As the concentration of substrate increased, this linearity decreased until any further increase in the substrate concentration did not show significant increase or expressed a little decrease in the velocity of the enzymatic reaction. Indeed, the present results ...
Biosynthesis

Biosynthesis (also called biogenesis or anabolism) is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides.The prerequisite elements for biosynthesis include: precursor compounds, chemical energy (e.g. ATP), and catalytic enzymes which may require coenzymes (e.g.NADH, NADPH). These elements create monomers, the building blocks for macromolecules. Some important biological macromolecules include: proteins, which are composed of amino acid monomers joined via peptide bonds, and DNA molecules, which are composed of nucleotides joined via phosphodiester bonds.