• 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
Directed Enzyme Evolution and High
Directed Enzyme Evolution and High

... The most commonly used method for random mutagenesis library creation is error-prone polymerase chain reaction (epPCR), which introduces mutations in a gene product by lowering the fidelity of DNA polymerase. This can be achieved through many different reaction conditions, including use of nucleotid ...
RNA/Protein Purification 96-Well Kit
RNA/Protein Purification 96-Well Kit

... rapid method for the high throughput isolation and purification of total RNA and proteins simultaneously from a single sample of cultured animal cells, small tissue samples, blood, bacteria, yeast, fungi or plants. It is often necessary to isolate total RNA and proteins from a single sample, such as ...
Practical Molecular Biology and Genetic Engineering
Practical Molecular Biology and Genetic Engineering

... Does undo the action of phosphatases, adds a 5'-phosphare group Needed when the 5'-end of an insert is derived from a synthetic oligonucleotide (e.g. when two oligo-nucleotides are annealed to create an insert or when a PCR product is used for cloning (without trimming the ends by a restriction enzy ...
nucleic acids
nucleic acids

... Disulfide bonds are important in determining the tertiary structure ...
for Genetic Testing
for Genetic Testing

... band with the child. We cannot be certain, however, because many other men in the population could have this same band. Matches are required at several different loci to indicate with high probability that he is the father. • Case 2: The tested male in case 2 cannot be the father, as neither of his ...
Go-ChIP-Grade™ Purified anti-Histone H3 (C-terminus
Go-ChIP-Grade™ Purified anti-Histone H3 (C-terminus

lecture 2: biological diversity in organisms
lecture 2: biological diversity in organisms

... X chromosome has the normal/defective gene (H/h) Y chromosome has no gene (smaller in size) Defective allele is recessive Male is XY and Female is XX Homozygous defective results in the disease • This includes a defective allele in males ...
ppt - Language Log
ppt - Language Log

... What does the genetic material do, anyway? • The genetic material has a number of important functions: 1. Transmit genetic information from one generation to the next (humans produce human infants and not rats or elephants). 2. Since every cell in the body (with several exceptions) has more or less ...
restriction enzymes
restriction enzymes

... Restriction fragment analysis detects DNA differences that affect restriction sites • Restriction fragment analysis indirectly detects certain differences in DNA nucleotide sequences. • After treating long DNA molecules with a restriction enzyme, the fragments can be separated by size via gel elect ...
Final lecture
Final lecture

... • HP1 is the key protein in forming mammalian heterochromatin, and acts by binding to methylated Structure from Protein Data Bank 1KNE. S. A. Jacobs histone H3. and S. Khorasanizadeh, Science 295 (2002): 20802083. ...
Chapter 11 - Jamestown Public Schools
Chapter 11 - Jamestown Public Schools

... Genetic Engineering Basic Steps of Genetic Engineering continued •Cutting DNA and Making Recombinant DNA Restriction enzymes are used to generate sticky ends. Sticky ends allow DNA fragments from different organisms to join together to form recombinant DNA. •Cloning, Selecting, and Screening Cells R ...
PDQeX Standard - DNA Extraction
PDQeX Standard - DNA Extraction

... base of the heating block should be cleaned regularly using dilute HClO bleach on a swab. Wipe residual bleach off the surfaces using a second swab soaked with DNA-free water. ...
Response_To_Selection_RBP
Response_To_Selection_RBP

Determination of the DNA and Amino Acid Sequences of the Lactate
Determination of the DNA and Amino Acid Sequences of the Lactate

... complementary to the forward-reverse strands of P. falciparum strains of K1 and PF FCBR LDHs. The PCR was carried out in the presence of 5 µl Taq buffer (supplied with enzyme), 5 µl (10ml of each 100 mM dNTPs and 10 ml of H2O) stock dNTPs, 2.5 µl (at 20 pmoles) Nterm. primer, 2.5 µl (at 20 pmoles) C ...
rna polymerases
rna polymerases

... RNA are: • Ribosomal RNA (rRNA), which is the most abundant type of RNA in the cell. • Transfer RNA (tRNA), which is the second most abundant type of RNA. • Messenger RNA (mRNA), which carries the information specifying the amino acid sequence of a protein to the ribosome. Messenger RNA is the only ...
Impact of scaffold rigidity on the design and
Impact of scaffold rigidity on the design and

... analogs (7–12). Analogous nucleic acid-based catalysts have been isolated from large random libraries with powerful in vitro selection techniques (13–16). In a different line of attack, metal ion catalysis has been combined with diverse biomacromolecular scaffolds to promote several cycloaddition re ...
Genetics Lecture 13 Extranuclear Inheritance
Genetics Lecture 13 Extranuclear Inheritance

... • 1. In this type of inheritance, DNA contained in _________ or chloroplasts  determines certain phenotypic characteristics of the offspring.  • 2. First, the function of these organelles is dependent on gene products  from both nuclear and organelle ______ • 3. As mentioned earlier, mtDNA gene prod ...
Screening Applications
Screening Applications

... In vitro transcription and translation systems can provide some advantages over in vivo systems for screening purposes. In vitro systems allow exact manipulation of compound concentrations. This is an important parameter when evaluating the potential potency of the lead compound. There is no need fo ...
The Genetic Code
The Genetic Code

... Perform the experiment in at least triplicate for each fruit. 1.Prepare a bottle of DNA extraction buer from 900 mL water, 50 mL dish detergent, and two teaspoons of table salt. Mix by inversion (cap it and turn it upside down a few times). 2.Grind a strawberry and a kiwifruit by hand in a plastic ...
Mutations Mutations occur when inserting and deleting one or
Mutations Mutations occur when inserting and deleting one or

... Mutations occur when inserting and deleting one or multiple nucleotides alter genes. There are many ways that mutations can build up over a lifetime through environmental factors such as smoking. Smoking can change the genes in your DNA. This may affect the way your tissue replicates itself in your ...
Crabtree, Savage and Miller
Crabtree, Savage and Miller

... ically similar SLE virus observed nucleotide sequence tified. This assay is based variation in the rDNA ITS and ITS2 regions of mosquito genomic DNA. The rDNA gene family consists of regions flanked by of highly conserved gene sequences that scribed and nontranscribed spacer regions that may contain ...
Chapter 4 The role of mutation in evolution
Chapter 4 The role of mutation in evolution

... 3. A careful look at base substitutions – alteration of one base (A,C,G,T) to another in a DNA sequence. Purines G or A; Pyrimidines C or T. Expect transversions to outnumber transitions by 2:1 if mutation is fully random. a. Transversions A<->C, C<->G, G<->T, T<->A Vs. Transitions A<->G, C<->T b. s ...
TPJ_4609_sm_FigureS3
TPJ_4609_sm_FigureS3

... Figure S3. DNA-blot analysis of SlSERK family members in tomato cv. Motelle. Genomic DNA, 5 µg, was digested with the indicated restriction enzymes and DNA blots were prepared according to standard protocols. The blots were hybridized with a 32P labeled probe in 50% (v/v) formamide at 42ºC. Final bl ...
1. Identify the structural formula. Use these choices - burgess
1. Identify the structural formula. Use these choices - burgess

... For each statement, write the letter of one of the structural formulas in number 1 above. A letter can be used more than once. _B_ 2. When many are bonded together, a protein is formed. _C_ 3. It is a disaccharide with the formula C12H22O11 _A_ 4. It is an isomer of fructose and galactose [each have ...
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS)
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS)

... evolution in phylogenetics. One portion of this in the biology itself. The innovation of DNA and the capability for biologists to sequence DNA has, to say the slightest revolutionized the field. Computers have assisted extremely as well. To the side from their relieve in sequencing assignments, comp ...
< 1 ... 402 403 404 405 406 407 408 409 410 ... 1026 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report