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ppt
ppt

... Concept 39 - A genome is an entire set of genes. Each organism has a defining set of chromosomes that contain all of its genetic information. The human genome, for example, is the set of genetic information encoded in 46 chromosomes found in the nucleus of each cell. The chromosomes are organized i ...
Plasmid Project due
Plasmid Project due

... cells (see Fig. 20.2 and 20.4) these bacterial cells can rapidly divide, thus producing numerous “clones” or genetically identical copies. If the gene codes for a desired protein (like insulin), all you have to do is grow the bacteria in large numbers – they crank out the protein (insulin)! This exe ...
Experiment 8 - WordPress.com
Experiment 8 - WordPress.com

... switched on and off. Arabinose, a biological molecule, allows GFP to turn on and, therefore,  fluoresce. The araC protein binds pGLO DNA and blocks RNA polymerase from binding.  Arabinose interacts with araC, changing its conformation that enables RNA polymerase to be  bound, and once transcription  ...
Full-Text PDF
Full-Text PDF

... Biosystems. All samples were analyzed on the same plate to allow comparing the results. In addition to an undiluted sample that was obtained directly from DNA extraction, dilutions of 1:10, 1:100 were applied for qPCR for each method. The qPCR amplificates were directly used for denaturing gradient ...
Study and engineering of gene function: mutagenesis
Study and engineering of gene function: mutagenesis

... Utility of strategy • Several new amino acids have been added to the E. coli code in this way, including phenyalanine derivatives with keto groups, which can be modified by hydrazide-containing fluorescent dyes in vivo – Useful for tracking protein localization, movement, and dynamics in the cell ...
Ch4Carbonand5Macromolecules
Ch4Carbonand5Macromolecules

... • Amino acids are linked together by condensation to form polypeptides. • There are 20 different amino acids in polypeptides synthesized on ribosomes. • Amino acids can be linked together in any sequence giving a huge range of possible polypeptides. • The amino acid sequence of polypeptides is coded ...
Genetic Algorithms
Genetic Algorithms

... Crossover is the process of mating in order to combine the genetic material of fit solutions There are a number of different ways to combine two hypothesis, which lead to differences in future populations The simplest method takes the two parents and creates two children by combining the two halves ...
reduce usage of proper splice site
reduce usage of proper splice site

... • second cleaves at 3’ end of intron (3’ splice site) ...
2.5.1 Variation of Species 2.5.2 Heredity and Gene
2.5.1 Variation of Species 2.5.2 Heredity and Gene

... Q. What term is used to describe differences within a population with respect to features such as height? Ability to roller skate Adenine; Thymine; Guanine; Cytosine DNA contains thymine; RNA contains uracil ...
Quantum Well Electron Gain Structures and Infrared Detector Arrays
Quantum Well Electron Gain Structures and Infrared Detector Arrays

... be joined together to make a long chain • “Polymers” are the larger, more complex molecules (i.e. chains) which are made up of multiple monomers • Side Note: • This diversity is why “organic” (meaning, “carbon”!) chemistry is SO complex !! ...
Cellular Reproduction - Genomic DNA
Cellular Reproduction - Genomic DNA

... Each copy of a homologous pair of chromosomes originates from a dierent parent; therefore, the genes themselves are not identical. The variation of individuals within a species is due to the specic combination of the genes inherited from both parents. Even a slightly altered sequence of nucleotide ...
Organic Chemistry and the Four Classes of Macromolecules PPT
Organic Chemistry and the Four Classes of Macromolecules PPT

... Such Elegance! ...
Combinatorial Transcription: expression/regulation depends on the
Combinatorial Transcription: expression/regulation depends on the

... Figure 3 Mechanism of insulator effect on enhancer function. (a) Diagram of two genes, X and Y, located within a chromosomal domain defined by two insulator sequences (ins) and their associated proteins (ibp). Enhancers located between the two genes (en1and en2) can activate transcription from the ...
An Introduction to Bioinformatics - E-Learning/An
An Introduction to Bioinformatics - E-Learning/An

... Applications of Bioinformatics 1. Detecting all manner of mutations associated with genetic disease – from insertions, to deletions, to point mutations. 2. Diagnosis of infectious diseases. 3. Forensic science and can also be used to determine a child's paternity (paternity test). ...
A Survey of Intron Research in Genetics
A Survey of Intron Research in Genetics

Chapter 5: Structure and Function of Macromolecules
Chapter 5: Structure and Function of Macromolecules

...  A polypeptide is a polymer of amino acids connected in a specific sequence (pp. 71-74, FIGURES 5.15-5.16, TABLE 5.1) Polypeptides are constructed from 20 different amino acids, each with a characteristic side chain (R group). The carboxyl and amino groups of adjacent amino acids link together in p ...
Final
Final

... you may receive partial or full credit. All questions 1 point unless indicated otherwise. Your score will be your % correct. True/False. Indicate the validity of these statements by writing the whole word TRUE or the whole word FALSE before each of these statements. 1 point each. __________ Enzymes ...
Nucleotide Metabolism -Biosynthesis- Dr. Sooad Al
Nucleotide Metabolism -Biosynthesis- Dr. Sooad Al

... Begins with their metabolic precursors: amino acids, ribose 5phosphate, CO2, and NH3. ...
Serine Proteases Substrate Specificity Proteases preferentially
Serine Proteases Substrate Specificity Proteases preferentially

... be  a  major  determinant  of  the  substrate  specificity  for  trypsin,  chymotrypsin  and  elastase.    S1  is  near  the   catalytic  triad  (the  region  boxed  below)  and  is  made  of  protease  residues  that  interact  with ...
Teacher Materials
Teacher Materials

... half of a ladder. Uracil replaces the pyrimidine thymine, which is found in DNA. About 90% of RNA molecules are located outside of the cell nucleus. Functionally, RNA falls into three categories: 1. Messenger RNA (mRNA) originates in the cell nucleus created by the nucleolus. The mRNA nucleotides co ...
Genetically modified medicinal plants
Genetically modified medicinal plants

... Phenotype analysis The expression of the nptII marker gene as its corresponding NPT II polypeptide has been estimated by the detection of the native 59 kDa dimer into the total protein extract obtained from the regenerated shoots (Fig.3). The transformed (T1,2) shoots actively expressed the NPT II f ...
E1. Due to semiconservative DNA replication, one of the sister
E1. Due to semiconservative DNA replication, one of the sister

... E9. One could begin with the assumption that the inactivation of a tumor-suppressor gene would cause cancerous cell growth. If so, one could begin with a normal human line and introduce a transposon. The next step would be to identify cells that have become immortal. This may be possible by identify ...
Characterizing the complexity of enzymes on the basis of their
Characterizing the complexity of enzymes on the basis of their

... MACiE website). The differences in catalytic propensity are further seen in the functions that the residues are carrying out in the six different enzyme classes (as defined by the EC). It is possible to split the functions that the catalytic residues are performing into seven categories: (a) activati ...
Document
Document

... E9. One could begin with the assumption that the inactivation of a tumor-suppressor gene would cause cancerous cell growth. If so, one could begin with a normal human line and introduce a transposon. The next step would be to identify cells that have become immortal. This may be possible by identify ...
File
File

... 36) FEVER, CHILLS, NAUSEA, NERVE INFLAMATION, SEVERE HEMMORHAGE ARE THE SIDE EFFECTS OF AMPHOTERICIN B 37) THE ACTIVITY OF THE THYMUS GLAND IS RELATIVELY SMALL IN CHILDHOOD IN COMPARISON TO MIDDLE AGE. THIS IS THE MAIN REASON OF A GREATER VULNERABILITY OF CHILDREN TO MYCOSES 38) GRISEOFULVIN TREATS ...
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Deoxyribozyme



Deoxyribozymes, also called DNA enzymes, DNAzymes, or catalytic DNA, are DNA oligonucleotides that are capable of catalyzing specific chemical reactions, similar to the action of other biological enzymes, such as proteins or ribozymes (enzymes composed of RNA).However, in contrast to the abundance of protein enzymes in biological systems and the discovery of biological ribozymes in the 1980s,there are no known naturally occurring deoxyribozymes.Deoxyribozymes should not be confused with DNA aptamers which are oligonucleotides that selectively bind a target ligand, but do not catalyze a subsequent chemical reaction.With the exception of ribozymes, nucleic acid molecules within cells primarily serve as storage of genetic information due to its ability to form complementary base pairs, which allows for high-fidelity copying and transfer of genetic information. In contrast, nucleic acid molecules are more limited in their catalytic ability, in comparison to protein enzymes, to just three types of interactions: hydrogen bonding, pi stacking, and metal-ion coordination. This is due to the limited number of functional groups of the nucleic acid monomers: while proteins are built from up to twenty different amino acids with various functional groups, nucleic acids are built from just four chemically similar nucleobases. In addition, DNA lacks the 2'-hydroxyl group found in RNA which limits the catalytic competency of deoxyribozymes even in comparison to ribozymes.In addition to the inherent inferiority of DNA catalytic activity, the apparent lack of naturally occurring deoxyribozymes may also be due to the primarily double-stranded conformation of DNA in biological systems which would limit its physical flexibility and ability to form tertiary structures, and so would drastically limit the ability of double-stranded DNA to act as a catalyst; though there are a few known instances of biological single-stranded DNA such as multicopy single-stranded DNA (msDNA), certain viral genomes, and the replication fork formed during DNA replication. Further structural differences between DNA and RNA may also play a role in the lack of biological deoxyribozymes, such as the additional methyl group of the DNA base thymidine compared to the RNA base uracil or the tendency of DNA to adopt the B-form helix while RNA tends to adopt the A-form helix. However, it has also been shown that DNA can form structures that RNA cannot, which suggests that, though there are differences in structures that each can form, neither is inherently more or less catalytic due to their possible structural motifs.
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