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protein synthesis slides - week 1
protein synthesis slides - week 1

... 2 Steps of Protein Synthesis Transcription: occurs in the ______________ • ______ is used a a template to make _______. • _______ leaves the ___________ through nuclear pores and travels to the ____________. Translation: occurs in the _____________ at the _____________. • A _______ molecule attaches ...
(a) (b) - My SMCC
(a) (b) - My SMCC

... DNA Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Essential amino acid
Essential amino acid

... 27.3 Amino Acid Catabolism: The Amino Group • A number of transaminase enzymes are responsible for “transporting” an amino group from one molecule to another. • Most are specific for a-ketoglutarate as the amino group acceptor and work with several amino acids. • The a-ketoglutarate is converted to ...
Mechanism of ribonuclease
Mechanism of ribonuclease

... Structure Of RNase protein • Long four-stranded antiparallel β-sheet and three short α-helixes ...
Oxidative Decarboxylation and Krebs Cycle
Oxidative Decarboxylation and Krebs Cycle

... phosphate (PLP: vit B6 derivative) as a coenzyme. The reaction is reversible ...
Protein Synthesis
Protein Synthesis

... SUMMARY: 5 Steps of Protein Synthesis 1. Transcription: DNA makes RNA (in the nucleus) 2. RNA now becomes mRNA which will leave the nucleus (take the code to ribosome) 3. mRNA tells ribosomes what proteins to make 4. mRNA attaches to ribosome and forms a pattern (codon) to make a protein 5. tRNA in ...
Lab 8 - Electrophoresis
Lab 8 - Electrophoresis

... protein does not migrate in an electric field is called the isoelectric point. Most neutral amino acids have isoelectric points around pH 6.0. The isoelectric points of aspartic acid and glutamic acid, however, are close to pH 3. Therefore, at pH 6, these acidic amino acids carry a negative charge a ...
Cell Respiration--The Kreb`s Cycle
Cell Respiration--The Kreb`s Cycle

...  It is a valuable source of intermediates which are ...
Topic D.1 Human Nutrition
Topic D.1 Human Nutrition

... U: Vitamins are chemically diverse carbon compounds that cannot be synthesized by the body. Vitamins = organic compounds; all essential; needed in small amounts Functions: co-enzymes, anti-oxidants, hormones Origin of word: “vital amine” (first vitamins discovered contained amino group) 2 categorie ...
1.0 amino acids as units of protein structure
1.0 amino acids as units of protein structure

COURSE DETAILS: E INTRODUCTION Metabolism can be defined
COURSE DETAILS: E INTRODUCTION Metabolism can be defined

... by E1. Therefore, when sufficient G is synthesized, it blocks further synthesis of itself. This phenomenon whereby product of a reaction sequence inhibits the activity of an enzyme early in the biosynthetic pathway is referred to as feedback inhibition or feedback regulation or end-product inhibitio ...
Leptin is a 16 kDa, 146 amino acid residue non
Leptin is a 16 kDa, 146 amino acid residue non

... Reconstitute the contents of the vial using sterile buffer (pH8.0 or above) to a concentration no less than 100 μg/ml and aliquot for future use. (If the initial rehydration is too dilute, activity may be lost due to the nonspecific adsorption to the container). The solution can then be further dilu ...
I - Decatur ISD
I - Decatur ISD

...  Proteins are building blocks of structures called _______________________. Proteins are what your DNA codes to make  A peptide bond forms between amino acids by dehydration synthesis.  ____________________________= the building up of large molecules by removing water molecules Enzymes  A. Speci ...
Bio Day 3 - Edublogs
Bio Day 3 - Edublogs

... ANNOTATE each question and use PROCESS OF ELIMINATION to find the correct answer. 1. When placed in the same container, oil and water do not mix because a. they are both polar. c. they are both nonpolar. b. water is polar and oil is nonpolar. d. water is nonpolar and oil is polar. 2. Which one of th ...
Document
Document

the chemistry of life - Fall River Public Schools
the chemistry of life - Fall River Public Schools

...  Transpiration is the movement of water molecules up the very thin xylem tubes and their evaporation from the stomata in plants. The water molecules cling to each other by cohesion and to the walls of the xylem tubes by adhesion. 2. Moderation of temperature is possible because of water’s high spec ...
2 Molecular - bloodhounds Incorporated
2 Molecular - bloodhounds Incorporated

... chain on either side of the double bond are either both “up” or both “down,” such that both are on the same side of the molecule. • In trans bonds, the two pieces of the molecule are on opposite sides of the double bond, that is, one “up” and one “down” across from each other. • Naturally-occurring ...
Biochemistry of Cells
Biochemistry of Cells

... 1. Which of the following is NOT one of the 4 biomolecules? A) Nucleic Acids ...
CHAPTER 3-Protein-In Class Activity
CHAPTER 3-Protein-In Class Activity

... Draw the structure of amino acid (aa) and label each part’s name. Draw and show how two aa bind together and go through dehydration reaction. Condensation reactions bond the carboxyl group of one amino acid to the amino group of another to form a peptide bond There are _______different amino acids e ...
presentation source
presentation source

... a short time, under conditions of ischemia. B. Lactic acid can be converted to glucose in the liver by a process called gluconeogenesis. ...
chapter 10
chapter 10

... d. the protein chain sends a signal through the nerve cells to the brain. ____ 21. In bacteria, a group of genes that code for functionally related enzymes, their promoter site, and the operator that controls them all function together as a(n) a. exon. c. operon. b. intron. d. ribosome. ____ 22. The ...
Investigating the effects of different types of mutations
Investigating the effects of different types of mutations

PowerPoint 演示文稿
PowerPoint 演示文稿

Isozymes
Isozymes

... molecular revolution ...
Chemistry of Life
Chemistry of Life

... Ethanethiol ...
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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.
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