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K - Romanian Biotechnological Letters
K - Romanian Biotechnological Letters

... time interval and the ramping. Using a computer controlled device, only few parameters must be defined, every cycle consisting of a succession of steps (forward migration, pause, reverse migration, pause) being controlled by computer, according to the chosen ramp and parameters. It is obvious that, ...
Biology OF CLONING VECTORS-III-B.SC - E
Biology OF CLONING VECTORS-III-B.SC - E

... phenotype is readily scorable, for in this way it is possible to distinguish chimeras from cleaved plasmid molecules which have self-annealed. Of course, readily detectable insertional inactivation is not essential if the vector and insert are to be joined by the hormopolymer tailing method or tif t ...
Driscoll Katee Driscoll Dr. Ely Genetics October 20, 2013 Effects of
Driscoll Katee Driscoll Dr. Ely Genetics October 20, 2013 Effects of

... In addition to this study by Lee et al., another group has studied the effects of CAG repeat length on the HTT gene. Duzdevich et al. studied the effects of super-long CAG repeats on DNA structure (2011). The neuronal cells of an HD patient often contain super-long CAG repeat sequences, while the bl ...
XLibraryDisplay User Manual Ryan Stafford
XLibraryDisplay User Manual Ryan Stafford

... Your translated sequences will be put on the “Translated” worksheet. You also have the “Aligned” sheet populated with your aligned sequences. The aligned sheet will have your template at the top and the sequence names on the left. Features in the alignment will be colored according to the key shown ...
doc
doc

... Database-mining: this is the process by which the structure/function of an unknown gene/protein is inferred from similar sequences identified in information already stored in database, most often from well-characterised model organisms. Evolutionary Biology: BI offers the potential for investigating ...
(base) sequence of the genome might reflect biological information
(base) sequence of the genome might reflect biological information

... and 5'-CCC (82,880). This fact is valid regardless of the species, such as Escherichia coli (Table 1(b)) or Schizosaccharomyces pombe (Table 1(c)). This reverse-complement symmetry led to the fact that the numbers of A and T were almost equal, and the numbers of G and C were almost equal. Generally ...
Biophysics 101 Genomics and Computational Biology
Biophysics 101 Genomics and Computational Biology

... Selection and characterization of amino acid substitutions at residues 237-240 of TEM-1 beta-lactamase with altered substrate specificity Selection strategy for site-directed mutagenesis based on altered beta-lactamase specificity. Site-directed mutagenesis of yeast eEF1A. Viable mutants with altere ...
Sequence Information Encoded in DNA that May Influence Long
Sequence Information Encoded in DNA that May Influence Long

... Figure 1. Analysis of Genomic DNA for VWG/CWB Chromatin Organizing Signals. Examples of Fourier transforms of period-10 VWG/CWB oscillations in 100 kb windows for no signal (A) and a strong signal (B). The Fourier amplitude value is computed at each base pair in the physiological dinucleosome range. ...
North Kitsap High School PAL Program
North Kitsap High School PAL Program

... compare ideas of Hutton, Lyell, Lamarck, and Malthus, describe how natural variation is used in artificial selection, describe how natural selection is related to species’ fitness, identify evidence Darwin used to present his case for evolution by natural selection, and state his theory. (16) Explai ...
REDESIGN OF CARNITINE ACETYLTRANSFERASE SPECIFICITY BY PROTEIN ENGINEERING UNIVERSIDAD DE BARCELONA
REDESIGN OF CARNITINE ACETYLTRANSFERASE SPECIFICITY BY PROTEIN ENGINEERING UNIVERSIDAD DE BARCELONA

... acyltransferase family. However, the recent report of the 3-D structures of CrAT and COT has provided valuable insights into the molecular basis of substrate specificity and catalytic activity in the acyltransferase family (Jogl 2003, Jogl 2005). ...
CHAPTER 15 THE CHROMOSOMAL BASIS OF INHERITANCE
CHAPTER 15 THE CHROMOSOMAL BASIS OF INHERITANCE

... A. Mendelian inheritance has its physical basis in the behavior of chromosomes during sexual life cycles B. Morgan traced a gene to a specific chromosome: science as a process C. Linked genes tend to be inherited together because they are located on the same chromosome D. Independent assortment of c ...
BIOL 432 - Evolution Selection
BIOL 432 - Evolution Selection

... • The change in mean fitness of a population is due to the additive genetic variance in fitness divided by the current average fitness • The higher the variance in fitness due to heritable additive factors the greater the effect of natural selection ...
Sequence analysis of 16S rRNA, gyrB and catA genes and DNA
Sequence analysis of 16S rRNA, gyrB and catA genes and DNA

... approximately 1200 bp PCR product besides the approximately 1500 bp specific product, making direct sequencing impossible. Sequence analyses gave interesting results. The reported 0.2 % difference between 16S rRNA gene sequences of type strains of R. qingshengii and R. jialingiae was not found, beca ...
Application for rDNA Review/Registration for
Application for rDNA Review/Registration for

... have designed the experiments to minimize potential hazards, and have communicated potential hazards to others who may come in contact with the products you propose to use or generate. This form is designed to encompass many different biosafety concerns the IBC registers, reviews, and approves for t ...
Scoring matrices
Scoring matrices

Lactobacilli carry cryptic genes encoding peptidase
Lactobacilli carry cryptic genes encoding peptidase

Chapter 10 PowerPoint
Chapter 10 PowerPoint

... Polymerase chain reaction, or PCR, is used to produce many copies of a specific sequence of DNA using a special form of DNA polymerase. ...
Chapter 12
Chapter 12

... it was recessive because of the selection against both the homozygous and heterozygous carriers. The mutation-selection balance explains why many chromosomes carry rare mutations that slightly reduce fitness in the heterozygous condition and are strongly deleterious or even lethal when homozygous. S ...
The making of the Fittest: Natural Selection and Adaptation
The making of the Fittest: Natural Selection and Adaptation

... rock pocket mouse would not be under strong selection pressure since it is not involved in camouflage. It is likely that there has been a mutation for dark-colored underbellies, but without selection for the trait, it has not become common. • Your students may wonder why camouflage is important for ...
Vectors for Even Larger Genomic DNA Inserts
Vectors for Even Larger Genomic DNA Inserts

... Plasmid avoid being lost from dividing cells by carrying partitioning systems The functions involved in these systems are called par functions cis-acting site: parS trans-acting site: parA and parB ...
Enzymes - Coleg y Cymoedd Moodle
Enzymes - Coleg y Cymoedd Moodle

... E.g. - Hydrolases. These are found in lysosomes and hydrolyse (break down) substances cell has taken in by phagocytosis. - ATPases found inside mitochondria. Involved in synthesis of ATP in aerobic respiration. Enzymes that act outside cells = extracellular enzymes. E.g. Digestive enzymes in the ali ...
Molecular Classification of Infectious Laryngotracheitis Virus from
Molecular Classification of Infectious Laryngotracheitis Virus from

... for diagnostic detection and differentiation of many pathogens. These techniques promote sensitivity and specificity compared to cellular techniques (Chansiripornchai et al., 2001). DNA sequencing is the gold standard of genetic identification. However, this technique is labouring and needs much equ ...
DNA Base Composition, DNA-DNA Homology and Long
DNA Base Composition, DNA-DNA Homology and Long

... respectively. These data are in good agreement with the previous reports of about 38 to 42 mol % G + C within these species (Deibel & Seeley, 1974; Kilpper-Balz et al., 1982). The results of DNA-DNA hybridization experiments are shown in Table 2. Streptococcus salivarius and S. therrnophilus strains ...
DNA Base Composition, DNA-DNA Homology and Long
DNA Base Composition, DNA-DNA Homology and Long

... respectively. These data are in good agreement with the previous reports of about 38 to 42 mol % G + C within these species (Deibel & Seeley, 1974; Kilpper-Balz et al., 1982). The results of DNA-DNA hybridization experiments are shown in Table 2. Streptococcus salivarius and S. therrnophilus strains ...
UNIT – I: NUCLEIC ACID AND PROTEIN SYNTHESIS AND
UNIT – I: NUCLEIC ACID AND PROTEIN SYNTHESIS AND

... The structure of RNA is similar to that of DNA but a number of important differences exist. In RNA ribose replaces 2’- deoxyribose and the base thymine is replaced by another base, uracil , which can also base pair with adenine In addition, RNA molecules normally exist as a single polynucletide stra ...
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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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