• 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
31P n.m.r. analysis of the renal response to respiratory acidosis
31P n.m.r. analysis of the renal response to respiratory acidosis

... Marchand, 1971; Ord & Stocken, 1981) and compensatory growth after partial hepatectomy (Witschi, 1970) are all inhibited in vivo. The kinase sensitive to Be2+ has now been identified as a cyclic AMP-independent enzyme which preVOl. ...
Carbohydrates and Lipids
Carbohydrates and Lipids

... • A fatty acid consists of a single hydrocarbon chain with a carboxyl functional group (-COOH) at one end, giving the fatty acid acidic properties. • In living acids they contain 4 or more carbons in the hydrocarbon chain. • Commonly 14-22 carbons (in even-numbers) • The longer the chain, the less w ...
AB Home » Focus Groups » Current »
AB Home » Focus Groups » Current »

... Translation  and  the  Ribosome.  In  translation,  information  is  transduced  from polynucleotide  to  polypeptide.  During  translation,  the  Yin  of  biology  connects directly  with  the  Yang.  Since  the  assembly  principles  of  these  two  polymers are  converses  of  each  other  (sidec ...
Biochemical correlates of neuropsychiatric illness in maple syrup
Biochemical correlates of neuropsychiatric illness in maple syrup

... include unbalanced cerebral essential amino acid uptake, neurotransmitter deficiencies, energy deprivation, and osmotic dysregulation. In MSUD, branched chain ketoacid metabolism is blocked by a dysfunctional BCKDH, causing concentrations of upstream aKIC and leucine to increase. Hyperleucinemia inh ...
Evaluation of the Progress of Protein Hydrolysis
Evaluation of the Progress of Protein Hydrolysis

Tertiary Structure
Tertiary Structure

... bond with the R-group of another cystine forming a disulphide ...
Lecture 3: Glycolysis Part 2 - University of California, Berkeley
Lecture 3: Glycolysis Part 2 - University of California, Berkeley

... reaction. The oxidation is on the carbon. This is aided by the abstraction of the proton on the -OH group, ending up with a thioester. Thioesters. The hydrolysis of thioesters is much more strongly downhill than the hydrolysis of simple esters. Oxygen-based esters like this give resonance stabilizat ...
Newborn Screening
Newborn Screening

nutrition, metabolism, and body temperature
nutrition, metabolism, and body temperature

... • Whether amino acids are used to synthesize new proteins or are burned for energy depends on a number of factors: – 1.The all-or-none rule: • All amino acids needed to make a particular protein must be present in a cell at the same time and in sufficient amounts for the protein to be made • If one ...
Slide 1
Slide 1

... 3.9 Phospholipids and steroids are important lipids with a variety of functions  Phospholipids are structurally similar to fats and are an important component of all cells – For example, they are a major part of cell membranes, in which they cluster into a bilayer of phospholipids – The hydrophili ...
Engineering the substrate and inhibitor specificities of human
Engineering the substrate and inhibitor specificities of human

... FIX and FX. Thus the activation is largely considered to be controlled by exosite interactions remote from the active site [8,9] and, thus, ground state stabilization (K m ) for the activation reaction may be largely independent of the active site. Consequently, we hypothesized that the inhibitory p ...
Lysines 72, 80 and 213 and aspartic acid 210 of the
Lysines 72, 80 and 213 and aspartic acid 210 of the

... Fig. 2. Multiple sequence alignment between the members of the E.coli DeoR family of repressors. LacR Smu, LacR Sau, GutR Eco, FucR Eco, DeoR Eco and AccR Atu are proteins involved in the regulation of the S.mutans and S.aureus lactose operons (Oskouian and Stewart, 1990; Rosey and Stewart, 1992), E ...
LIPIDS - Biochemistry Notes
LIPIDS - Biochemistry Notes

... DIGESTIVE MECHANISM FOR LIPIDS The average lipid intake is about 80g/day, of which more than 90% is triacylglycerol (TAG); the remainder consists of cholesterol, cholesteryl esters, phospholipids, free fatty acids 1. In the stomach: ...
Chapter 14 - Richsingiser.com
Chapter 14 - Richsingiser.com

... • Facilitate conversion of substrate to product ...
Lecture 24
Lecture 24

... • NADPH is generated by oxidation of G6P via the pentose phosphate pathway – hexose monophosphate (HMP) pathway, phosphogluconate pathway. ...
Make Your Protein Work Harder for You
Make Your Protein Work Harder for You

... needs. Therefore, a variety of plant proteins are often needed to ensure amino acid needs are met. ...
Plant Respiration Exchange of Gases in Plants - E
Plant Respiration Exchange of Gases in Plants - E

Genetic Mutations
Genetic Mutations

... 20. All cells have DNA errors due to the mistakes that occur each time DNA is replicated prior to cell division. There are proofreading enzymes in cells that correct many of these mistakes, but on average, 3 – 5 errors are found in DNA after each replication. a. If each cell has multiple mutation ...
ACT - Genetic Mutations-S
ACT - Genetic Mutations-S

... Amino acid sequence ...
1 - Testbank Byte
1 - Testbank Byte

... molecules can form planar lipid bilayers, whereas the nonamphipathic nonpolar triacylglycerols cannot. The amphipathic property, the presence of a polar and nonpolar domain at opposite ends of the same molecule, allows phospholipids to form hydrophilic associations with water at the same time as for ...
The Structure of Proteins
The Structure of Proteins

... residues and three methane molecules; hence the fabric, (3) the closing of the fabric into a polyheat of formation of a glycine cyclol per residue hedral surface which eliminates boundaries of the is predicted to have the value 32.2 kcal./mole fabric and greatly increases the symmetry, and found exp ...
Chapter 3
Chapter 3

... 3.9 Phospholipids and steroids are important lipids with a variety of functions  Phospholipids are structurally similar to fats and are an important component of all cells – For example, they are a major part of cell membranes, in which they cluster into a bilayer of phospholipids – The hydrophili ...
Comparative physiological studies on lour species of
Comparative physiological studies on lour species of

... ly than the ions ( 1 0) . This account for the differences observed at the twu di fferent pH's. It may also be postulated that the lower pH wiU modify the per­ meability properties of the ceU membrane making the substrate available . to the enzymes. Furthermore, the data suggest that the tricarboxyl ...
DECISION of 28 June 2005
DECISION of 28 June 2005

... 7. In the application as filed (pages 10 and 11), GDF-9 is described as a 441 amino acids long protein having a Cterminal domain preceded by a putative tetrabasic proteolytic processing site. Yet, it does not exhibit the most striking structural feature which serves to establish whether or not a pol ...
M-path: a compass for navigating potential metabolic pathways
M-path: a compass for navigating potential metabolic pathways

... related enzyme functions (Keasling et al., 2010; Lee et al., 2012). As databases of enzymatic reactions and compounds have increased in size, computational methods have become necessary to identify the key enzymatic reaction steps for efficient synthetic pathway design (Kanehisa et al., 2008; Schomb ...
< 1 ... 204 205 206 207 208 209 210 211 212 ... 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