• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Characterization of the Plasmid-Encoded Arsenic Salts Resistance
Characterization of the Plasmid-Encoded Arsenic Salts Resistance

Determination of the Amino Acid Content of Peptides by AAA
Determination of the Amino Acid Content of Peptides by AAA

Revving up glycolysis
Revving up glycolysis

... The major difference between PKM1 and PKM2 is that PKM1 is constitutively active, whereas PKM2 has low basal activity that can be fine-tuned up or down by other metabolic and signaling pathways. Although both enzymes convert phosphoenolpyruvate into ATP and pyruvate, the final product of glycolysis, ...
UNIT (12) MOLECULES OF LIFE
UNIT (12) MOLECULES OF LIFE

... Secondary Structure of DNA: The DNA Double Helix The secondary structure of DNA was proposed by James Watson and Francis Crick in 1953. This was perhaps the greatest discovery of modern biology and one of the most remarkable and profound events in the history of science. Watson and Crick concluded ...
lecture notes-enzyme-web
lecture notes-enzyme-web

CP1 Domain in Escherichia coli Leucyl
CP1 Domain in Escherichia coli Leucyl

... steps; amino acids larger than the cognate substrate are rejected by a “coarse sieve”, while the reaction products of amino acids smaller than the cognate substrate will go through a “fine sieve” and be hydrolyzed. This “double-sieve” mechanism has been proposed for IleRS, a class I aminoacyl-tRNA s ...
Proteases of Senescing Oat Leaves
Proteases of Senescing Oat Leaves

... whereas the neutral enzyme is of the sulfhydryl type. Both enzymes are described (9). For the experiments presented here, the final step in Inhibited by irradiation in the presence of rose bengal, a selective histidine purification, involving chromatography on DEAE-Sephadex, was modification reagent ...
Short-chain 3-hydroxyacyl-CoA dehydrogenase deficiency
Short-chain 3-hydroxyacyl-CoA dehydrogenase deficiency

... in the control of the anaplerosis/augmentation pathway [16] and intramitochondrial L-3-hydroxybutyryl-CoA could interfere with this pathway, e.g. by inhibition of α-ketoglutarate dehydrogenase. (iii) L-Hydroxybutyrate, L-hydroxybutyryl-CoA or L-hydroxybutyryl-carnitine could inhibit ...
unit3_lesson10_translation1_markscheme
unit3_lesson10_translation1_markscheme

... POD Mark Scheme Explain the translation of a protein from DNA [8]. ...
Ch23_Lecture
Ch23_Lecture

... Elastase: C-side of Gly and Ala No cleavage for any endopeptidase if Pro on either side ...
Beta Structures
Beta Structures

... • As shown in (a), two of the b sheets (blue and yellow) are parallel to each other and are perpendicular to the third (green). In (b), each structural unit is composed of three b strands connected by three loop regions (labeled a, b and c). • Loop a (red) is invariably composed of only two residues ...
C-terminal amino acid?
C-terminal amino acid?

... Elastase: C-side of Gly and Ala No cleavage for any endopeptidase if Pro on either side ...
Quinolizidine Alkaloids
Quinolizidine Alkaloids

... * They are characterized by the presence of two fused pyrrolidine rings . * There is a common nitrogen between these two rings . * They are based on the presence of two five membered nitrogenous rings , we said before that the five membered heterocyclic ring is derived from the amino acid ornithine ...
PDF file
PDF file

... proteins that form a heterodimer complex. The amino acid sequence of the catalytic region of yeast RTPase subunit has no obvious similarity to PTPs [9,10]. Unlike metazoan RTPases, the yeast proteins require divalent cations for activity [11,12]. It has been suggested that fungal RTPases comprise a ...
Griffith_155
Griffith_155

Document
Document

... What if there’s no oxygen? • Without O2, the electron transport chain will cease to operate. • In that case, glycolysis couples with fermentation or anaerobic respiration to produce ATP. – Anaerobic respiration: electron transport chain with an electron acceptor other than O2 (often sulfate) – Ferm ...
Ch. 33 Synthesis of Fatty acids, Triacylglycerols, Membrane lipids
Ch. 33 Synthesis of Fatty acids, Triacylglycerols, Membrane lipids

Chapters11-Glycolysis-2014
Chapters11-Glycolysis-2014

... carbohydrates, fats and proteins into CO2 and G in the form of ATP. The cycle also provides precursors of certain amino acids and of NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established com ...
ppt
ppt

... • Malonyl CoA is immediate donor of the 2-C units • Acetyl CoA carboxylase requires biotin and ATP ...
Agent-based Protein Structure Prediction
Agent-based Protein Structure Prediction

... relevant problem is the correlation between the different propensities and interactions singled out. As far as empirical contact energies are concerned, a table which has been proven to be rather accurate, when tested on several decoys’ sets, is derived in [5]. Similar tables have been provided base ...
Effects of amino acids and casein on copper uptake from soil by
Effects of amino acids and casein on copper uptake from soil by

... applied either as Cu(OH)2 or CuSO4 at 50 mg or 100 mg lation than Cu(OH)2 (Table 1), reflecting the lower Cu/kg air-dry soil. His, methionine (Met), aspartic acid solubility of Cu(OH)2. When Cu was supplied as Cu(OH)2 at 50 mg Cu/kg (Asp) and casein were used as additives. The amount soil, there wer ...
Characterization and Surface Properties of Amino-Acid
Characterization and Surface Properties of Amino-Acid

... 0.25 M KOH. The suspensions were then agitated for 24 h, a time determined experimentally to be sufficient for equilibrium to be attained. The suspensions were centrifuged at 4000 rcf for 10 min, after which 5 µL of supernatant was extracted and lyophilized at 0.25 Torr for 4 h to remove water. The ...
N8113S N8113S
N8113S N8113S

... A gene or open reading frame is inserted into a restriction site of the vector polylinker, in the same translational reading frame as the malE gene (encoding MBP). The fusion protein produced from the vector can be purified by amylose affinity chromatography. The sequence coding for the five amino a ...
Chapter 9 Cellular Respiration
Chapter 9 Cellular Respiration

... • Each ATP = 12 kcal/mole of energy. • Inefficient capture of energy, only 3.5 % of available energy in glucose. • Most remains in pyruvate. ...
Metabolic Crosstalk: Interactions between the
Metabolic Crosstalk: Interactions between the

... The phenylpropanoid pathway is big in plants—particularly in trees, which can get big in no small part because of the lignin produced through this pathway. In addition to the huge carbon sink represented by lignin (reviewed in Eudes et al., 2014), the phenylpropanoid pathway also produces important ...
< 1 ... 228 229 230 231 232 233 234 235 236 ... 622 >

Amino acid synthesis

Amino acid synthesis is the set of biochemical processes (metabolic pathways) by which the various amino acids are produced from other compounds. The substrates for these processes are various compounds in the organism's diet or growth media. Not all organisms are able to synthesise all amino acids. Humans are excellent example of this, since humans can only synthesise 11 of the 20 standard amino acids (aka non-essential amino acid), and in time of accelerated growth, arginine, can be considered an essential amino acid.A fundamental problem for biological systems is to obtain nitrogen in an easily usable form. This problem is solved by certain microorganisms capable of reducing the inert N≡N molecule (nitrogen gas) to two molecules of ammonia in one of the most remarkable reactions in biochemistry. Ammonia is the source of nitrogen for all the amino acids. The carbon backbones come from the glycolytic pathway, the pentose phosphate pathway, or the citric acid cycle.In amino acid production, one encounters an important problem in biosynthesis, namely stereochemical control. Because all amino acids except glycine are chiral, biosynthetic pathways must generate the correct isomer with high fidelity. In each of the 19 pathways for the generation of chiral amino acids, the stereochemistry at the α-carbon atom is established by a transamination reaction that involves pyridoxal phosphate. Almost all the transaminases that catalyze these reactions descend from a common ancestor, illustrating once again that effective solutions to biochemical problems are retained throughout evolution.Biosynthetic pathways are often highly regulated such that building-blocks are synthesized only when supplies are low. Very often, a high concentration of the final product of a pathway inhibits the activity of enzymes that function early in the pathway. Often present are allosteric enzymes capable of sensing and responding to concentrations of regulatory species. These enzymes are similar in functional properties to aspartate transcarbamoylase and its regulators. Feedback and allosteric mechanisms ensure that all twenty amino acids are maintained in sufficient amounts for protein synthesis and other processes.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report