• 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
The Genome of Deep-Sea Vent Chemolithoautotroph
The Genome of Deep-Sea Vent Chemolithoautotroph

... chemolithoautotrophic sulfur-oxidizing bacteria isolated from deep-sea hydrothermal vents. This gammaproteobacterium has a single chromosome (2,427,734 base pairs), and its genome illustrates many of the adaptations that have enabled it to thrive at vents globally. It has 14 methyl-accepting chemota ...
REGULATORY ENZYMES
REGULATORY ENZYMES

... • The biochemical pathways that you will soon be studying are composed of groups of coordinated enzymes that perform a specific metabolic process. In general, these enzyme groups are composed of many enzymes, only a few of which are regulated by the mechanisms described in this lecture. Regulatory e ...
Kanr T-DNA Supplemental Figure 1. Transgenic complementation of
Kanr T-DNA Supplemental Figure 1. Transgenic complementation of

... Madison, WI). Identical residues are black-shaded and conservative substitutions are grey-shaded. The boxed sequences indicate the region with low amino acid similarity between the two proteins. The BCCP1 and BCCP2 cDNAs coding for this region were PCR amplified and cloned into an expression vector. ...
CRACKING THE GENETIC CODE
CRACKING THE GENETIC CODE

... Before he could begin his experiment, Nirenberg needed both a means to separate the complex from unbound components and a method to detect tRNA binding to the ribosome. To isolate the complex he exploited the ability of nylon filters to bind large RNA molecules, such as ribosomes, but not the smalle ...
Bioinformatics 2 - Lecture 7
Bioinformatics 2 - Lecture 7

... finding trends and groupings within high order complex datasets is fundamental to many computational biology projects - Proteomics - protein-protein interaction data - Functional annotation clustering - grouping genes by function - Transcriptomics - grouping genes by expression profile by condition ...
Hemoglobin
Hemoglobin

... (1) Oxy Hb ('R') H.HbO2 <===> HbO2- + H+ (pKa = 6.6 so HbO2- is dominant form @ pH7.4) (2) Deoxy Hb ('T') H.Hb <===> Hb- + H+ (pKa = 8.2 so H.Hb is dominant form @ pH7.4) (3)H.Hb.CO2.BPG.Cl-.NO + O2 <===> HbO2- + H+ + CO2 + BPG + Cl- + NO (4)CO2(g) <=>CO2(aq) + H2O <=> H2CO3 <=> H+ + HCO3- (overall ...


... The enzyme exists in two states relaxed (R) or tense (T) with the relaxed being the active form. ...
The HSP90 family of genes in the human genome
The HSP90 family of genes in the human genome

... Introduction HSP90 proteins, named according to the 90-kDa average molecular mass of their members, are highly conserved molecular chaperones that account for 1 – 2% of all cellular proteins in most cells under non-stress conditions [1]. HSP90 proteins have key roles in signal transduction, protein ...
Triphosphatase Related to the Protein Tyrosine Phosphatases
Triphosphatase Related to the Protein Tyrosine Phosphatases

... et al., 1996; Fauman and Saper, 1996). These ‘‘inactive’’ domains may in fact have other substrates that have not yet been recognized. The C. elegans capping enzyme triphosphatase is most closely related to the baculovirus protein BVP (Sheng and Charbonneau, 1993). This protein has been experimental ...
Other genomic arrays: Methylation, chIP on chip…
Other genomic arrays: Methylation, chIP on chip…

... WORKFLOW II. 3. Error modelling To identify which probes are most representative of binding events: P(X)=P-value of a single probe matching event P(Xneighb)= Positive signals in a probe should be corroborated by the signals of probes that are its genomic neighbors, provided they are close enough P(X ...
Supplementary METHODS
Supplementary METHODS

... Supplementary METHODS Crosslink formation in the supF reporter gene. The pSupFG1 plasmid was incubated with either the specific TFO (pAG30) or a control TFO (pSCR30) in triplex binding buffer for 4 hour at 37ºC. Samples were irradiated with UVA light (365 nm, 1.8 J/cm2) to induce psoralen ICLs at th ...
Lecture Chpt. 20 DNA Technology & Genomics
Lecture Chpt. 20 DNA Technology & Genomics

... similar molecules in an afternoon. The reaction is easy to execute. It requires no more than a test tube, a few simple reagents and a source of heat. The DNA sample that one wishes to copy can be pure, or it can be a minute part of an extremely complex mixture of biological materials. The DNA may co ...
HiSeq 2500 Applications Brochure
HiSeq 2500 Applications Brochure

... individual transcripts and isoforms, discover new genes, and identify regulatory non-coding RNAs. ...
PCR - Fort Lewis College
PCR - Fort Lewis College

... cDNAs which is then used for PCR and is extremely sensitive for detecting the expression of a specific sequence in a tissue or cells. It may also be use to quantify mRNA transcripts. This is also called Quantiative RT-PCR, Competitive Quantitative RT-PCR, RT in situ PCR, Nested RT-PCR. 5. RACE (rapi ...
Promega Enzyme Resource Guide, Cloning Enzymes , BR075B
Promega Enzyme Resource Guide, Cloning Enzymes , BR075B

... DNA Ligases are primarily responsible for joining the gaps that form in DNA during replication (i.e., the joining of ‘’Okazaki’’ fragments formed by discontinuous or lagging strand replication; 1), DNA repair, and recombination. The best known RNA ligase is bacteriophage T4 RNA ligase. This enzyme d ...
Chapter 4 Background DNA Structure and Analysis
Chapter 4 Background DNA Structure and Analysis

... Analysis Chapter 4: Background ...
Spnr, a Murine RNA-binding Protein That Is Localized to
Spnr, a Murine RNA-binding Protein That Is Localized to

... mRNA stability, transport, localization, and translation (Jackson, 1993). Although antisense RNAs and proteins that bind to the 3' UTRs of some mRNAs have been identified (Wightman et al., 1993; Lee et al., 1993; Wharton and Struhl, 1991; Harford et al., 1990), the molecular mechanisms by which 3' U ...
Analysis of gene expression changes in Trichophyton rubrum after
Analysis of gene expression changes in Trichophyton rubrum after

... sequencing of the 18S rDNA and internal transcribed spacer regions. Strain reference samples were stored at 220 uC in the Research Centre for Medical Mycology, Beijing, PR China (Wang et al., 2004). T. rubrum microconidia were isolated as reported previously and adjusted to a concentration of 5–8610 ...
AIS: Androgen Insensitivity Disorder
AIS: Androgen Insensitivity Disorder

... Androgen receptor is highly conserved in mammals and higher organisms but does not have a direct homolog in more distantly related organisms – Should not be used a to determine speciation events, example, chimpanzee and cattle ...
(Heterobasidion annosum) in
(Heterobasidion annosum) in

... molecular aspects of the host response to the pathogen infection have been relatively little examined. Typically, plant defence mechanisms comprise preformed and inducible physical and chemical barriers. Preformed physical barriers include thorns, bark and cuticular waxes, and chemical defences comp ...
plantcell.org - Schnable Lab
plantcell.org - Schnable Lab

... from companion cells labeled by the expression of green fluorescent protein (Brandt et al., 1999). However, a disadvantage of this method is that it requires the use of cell-specific promoters, and relatively few such promoters are available. A second way to collect specific cell types is to use pro ...
Testis-specific TAF homologs collaborate to control a
Testis-specific TAF homologs collaborate to control a

... Introduction The initiation of transcription by RNA polymerase II (PolII) remains a critical control point for regulation of differential gene expression during development and the differentiation of specialized cell types. The general transcription factor TFIID is thought to play a central role in ...
Ketone ester effects on metabolism and
Ketone ester effects on metabolism and

... Treatment of cells with D­β­hydroxybutyrate increases histone acetylation at the FOX3A and MT2 promoters, thus increasing the transcription of antioxidant enzymes, including superoxide dismutase, catalase, and metallothio nein (14), thus adding to the removal of reactive O2 species brought about by  ...
PCR Optimization: Reaction Conditions and
PCR Optimization: Reaction Conditions and

... contains DMSO and glycerol, and is included with both the component product enzyme and complete GeneAmp® XL PCR Kit. PCR Thermal Profiles Using the GeneAmp® PCR System 9700 or 2720 with the two-temperature PCR protocol and GeneAmp® PCR Reagents, amplification of the Lambda control target DNA is guar ...
Chapter 30: Protein Synthesis
Chapter 30: Protein Synthesis

... • GTP-binding induces conformational changes for protein synthesis; hydrolysis drives conformation back to initial state. • Two GTPs are hydrolyzed for each amino acid incorporated into peptide. • Total of four high-energy phosphate bonds are expended per amino acid residue added - two GTP here and ...
< 1 ... 43 44 45 46 47 48 49 50 51 ... 342 >

Transcriptional regulation

In molecular biology and genetics, transcriptional regulation is the means by which a cell regulates the conversion of DNA to RNA (transcription), thereby orchestrating gene activity. A single gene can be regulated in a range of ways, from altering the number of copies of RNA that are transcribed, to the temporal control of when the gene is transcribed. This control allows the cell or organism to respond to a variety of intra- and extracellular signals and thus mount a response. Some examples of this include producing the mRNA that encode enzymes to adapt to a change in a food source, producing the gene products involved in cell cycle specific activities, and producing the gene products responsible for cellular differentiation in higher eukaryotes.The regulation of transcription is a vital process in all living organisms. It is orchestrated by transcription factors and other proteins working in concert to finely tune the amount of RNA being produced through a variety of mechanisms. Prokaryotic organisms and eukaryotic organisms have very different strategies of accomplishing control over transcription, but some important features remain conserved between the two. Most importantly is the idea of combinatorial control, which is that any given gene is likely controlled by a specific combination of factors to control transcription. In a hypothetical example, the factors A and B might regulate a distinct set of genes from the combination of factors A and C. This combinatorial nature extends to complexes of far more than two proteins, and allows a very small subset (less than 10%) of the genome to control the transcriptional program of the entire cell.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report