• 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
Scoring the Alignment of Amino Acid Sequences
Scoring the Alignment of Amino Acid Sequences

... Amino Acids make the problem of scoring a pair of Amino Acids a much more complicated problem than scoring a pair of nucleotides. In the late 1970’s Dayhoff, Schwartz, and Orcutt decided to look at a database of similar proteins having common ancestors and obtain substitution frequency data. ...
Name CELLULAR RESPIRATION URL: http:://www.2.nl.edu/jste
Name CELLULAR RESPIRATION URL: http:://www.2.nl.edu/jste

... What molecule is used to do work in cells of living things? GLYCOLYSIS Summarize what occurs in glycolysis in one sentence. Where does glycoloysis occur? Is the process aerobic or anaerobic? What are products of glycolysis? What must be supplied in order to run the set of reactions? ...
Chapter 26 - Palm Beach State College
Chapter 26 - Palm Beach State College

... • Complete proteins—high-quality dietary proteins that provide all essential amino acids in the necessary proportions for human tissue growth, maintenance, and nitrogen balance • Incomplete proteins—lower quality because they lack one or more essential amino acids ...
Glycine Cleavage Powers Photoheterotrophic Growth of
Glycine Cleavage Powers Photoheterotrophic Growth of

... medium (pH = 7.5). Although addition of NaHCO3 did not appear to promote strain J-10-fl growth (Figure 2), enzyme activities of CO2 fixation was measurable due to significant 13 C incorporation into proteinogenic amino acids (e.g., ∼40% alanine is singly labeled and 5% alanine is doubly labeled, Figure ...
COMBINATION COMPRISING AT LEAST ONE AMINO ACID AND A
COMBINATION COMPRISING AT LEAST ONE AMINO ACID AND A

... proteins. Hydrophilic amino acids tend to make up the surfaces of proteins while hydrophobic amino acids tend to make up the water-insoluble interior portions of proteins. [0003] Of the common 20 amino acids, nine are considered indispensable (essential) in humans, as the body cannot synthesize them ...
Properties of the Major Biological Molecules
Properties of the Major Biological Molecules

...  What makes one protein different from any other type of protein? Each protein can be made from up to 20 different amino acids that are bonded to each other in one long chain. Protein polymers can be made of a chain of over 15,000 amino acids. The ordering of these amino acids is variable from one ...
Worked Example 20.1
Worked Example 20.1

... First, remember that reactions are written left to right, with the reaction arrow pointing to the right. Second, remember that the compounds that are products in the original reaction are reactants in the reverse reaction and the compounds that are reactants in the original reaction are products in ...
2015-2016 SMART Team Abstract Booklet.
2015-2016 SMART Team Abstract Booklet.

... binds as a dimer to small RNA duplexes of a specific length and prevents them from participating in further steps of RNA silencing. The sequence-independent binding results from hydrogen-bonding and electrostatic interactions between the 8 saddle-like β- sheets of the homodimer and the sugar-phospha ...
Mohammed Laqqan
Mohammed Laqqan

... acid sequence but catalyze the same chemical reaction. • Now called “isoform” of an enzyme. • They have similar catalytic activity, but are different biochemically or immunologically and can be demonstrated by electrophoretic mobility, differences in absorption properties or by their reaction with a ...
Automated In-Needle Derivatization Applying a User
Automated In-Needle Derivatization Applying a User

Pymol Tutorial
Pymol Tutorial

... proteins are homologous and having a percentage identity of 65% with each other. It is advisable to place them as cartoon. We can put both together as in cartoon 'all' → 'S + as + cartoon': ...
Presentation
Presentation

... Functions of Proteins? • 3.3 What Are the Chemical Structures and Functions of Carbohydrates? • 3.4 What Are the Chemical Structures and Functions of Lipids? • 3.5 What Are the Chemical Structures and Functions of Nucleic Acids? • 3.6 How Did Life on Earth Begin? ...
Consequences of Stop Codon Reassignment on
Consequences of Stop Codon Reassignment on

... extent the organization of the genetic code; most amino acids that are frequently substituted in the PAM1 matrix have codons that are interchangeable by a single point mutation. In other words, the PAM1 matrix is dominated by neutral or nearly neutral mutations. Typically, to calculate substitution ...
ordered reactions
ordered reactions

... substrates. Though the Michaelis-Menten equation was derived from a single substrate to product reaction, it still can be used successfully for more complex reactions (by using kcat). ...
REDESIGN OF CARNITINE ACETYLTRANSFERASE SPECIFICITY BY PROTEIN ENGINEERING UNIVERSIDAD DE BARCELONA
REDESIGN OF CARNITINE ACETYLTRANSFERASE SPECIFICITY BY PROTEIN ENGINEERING UNIVERSIDAD DE BARCELONA

... candidate, because its side chain is voluminous and projects into the putative cavity where the acyl-CoA may enter. Our bioinformatic approach failed to identify Met564; in our protein alignment we compared all the known sequences of the carnitine/choline acyltransferase family from several organism ...
Transamination and asymmetry in glutamate transport across the
Transamination and asymmetry in glutamate transport across the

... of L - g l u t a m a t e across the b a s o I a t e r a l m e m b r a n e of frog small-intestinal epithelium, unlike that of L-alanine, is highly asymmetric; thus the rate c o n s t a n t (.Kentry) describing the entry of glutamate into the eplthenum from the vascular bed across this membrane is on ...
Colorimetric End-Point Determination
Colorimetric End-Point Determination

... A further refinement in clinical enzymology has been the measurement of the different isoenzymes of a particular enzyme. Some enzymes exist in multimolecular forms (isoenzymes) that have similar catalytic activity but different biochemical and immunologic properties; they can be separated and identi ...
Chapter 1
Chapter 1

... Begins with D-glucose as the substrate All organisms can use glucose as an energy source Requires no oxygen Occurs free in the cytoplasm Ten step pathway catalyzed by enzymes ...
Genetic code ambiguity: an unexpected source of proteome
Genetic code ambiguity: an unexpected source of proteome

... the UGA by a SECIS element present in the 30 -UTR of eTR1 and eTR2. Cys and Sec incorporation at those UGAs are necessary to produce active eTR1 and eTR2 [15], thus demonstrating that such ambiguity is functional. Pyrrolysine (Pyl) provides additional evidence for positive roles of genetic code am ...
Protein structure is conceptually divided into four levels of organization
Protein structure is conceptually divided into four levels of organization

... barrel is lined by small hydrophilic side chains (serine and threonine) from the b strands, which creates a hole in the middle where one of the substrate molecules, coenzyme A (green), binds along the axis of the barrel from one end to the other. (Adapted from a computer-generated diagram provided b ...
FAN: fingerprint analysis of nucleotide sequences
FAN: fingerprint analysis of nucleotide sequences

... the more significant motifs of the TNFC fingerprint standing out in dark blue. In contrast, the individual motif matches to the TNECROSISFCT fingerprint are relatively weak, but all motifs match, and together they give a significant match. In this sort of situation, where motif matches are weak, it ...
S.G. Key Final - USC Upstate: Faculty
S.G. Key Final - USC Upstate: Faculty

... it releases CO2. This causes both of the above reactions to flow to the left. The decrease in H3O+ causes arterial blood to be more basic than venous blood. b) Hemoglobin (Hb) has two different conformations (shapes). One of these conformations has higher affinity for O2 and the other has lower affi ...
Energy Metabolism and Mitochondria
Energy Metabolism and Mitochondria

... The NADH (and FADH2) molecules transfer their electrons via multiple electron carriers that are components of the electron transport chain. These are located in the mitochondrial inner membrane. The electrons that are transferred along the chain ultimately reduce molecular oxygen to produce water. I ...
Lesson title: Nucleic acids Lesson date: 30.12.2013 One sentence
Lesson title: Nucleic acids Lesson date: 30.12.2013 One sentence

... 3. Students will be able to infer that the sequence of the nucleic acids in DNA is the key to how DNA provides instructions to the cell. 4. Students will be able to relate this nucleic acids puzzle activity to Watson and Crick’s original discovery of the structure of DNA. Key vocabulary: DNA, Deoxyr ...
The 1B (NS2), 1C (NS1) and N Proteins of Human Respiratory
The 1B (NS2), 1C (NS1) and N Proteins of Human Respiratory

< 1 ... 240 241 242 243 244 245 246 247 248 ... 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