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coli at biology dictionary

Wild type

... Full article >>> A culture of E. coli strain B is coinfected with equal numbers of a triple mutant of T4 phage , d g r, and wild type (+ + +). 1000 plaque s were analyzed and their genotype were distributed as follows. d g r 425 ... Full article >>> domesticated p...

Virus

... most often used in molecular biology are the E. coli virus es lambda , M13 and T7. Full article >.... Lambda bacteriophage is the basis of many E. coli vectors which are used for c DNA and genomic DNA libraries. Filamentous bacteriophages are us...

Vertebrates

...omal complement . Full article >>> coli ( Escherichia coli ) A common bacterium found in the small intestine of vertebrates ; the most well-studied organ i...

Vectors

...repeats in DNA . Full article >>> coli vectors which are used for c DNA and genomic DNA libraries. Filamentous bacteriophages are used to produce single- strand ed DNA for sequencing or in vitro mutagenesis (eg. M13), and as vectors for Phage display expression screeni...

Urea

...The United States has exported in food products E. coli 0157, which causes hemolytic urea and is roughly the most difficult form of enteric, or stomach , microbial disease that we've introduced into the world in quite a number of decades. Full article >>>...

Unicellular

...>>> unicellular microbe s like E. coli unicellular eukaryotes like yeast and in mammalian cells grown in tissue culture . Full article >>> Unicellular often environment ally resistant dormant or reproductive body produced by plant s and some microorganisms an...

Transposon

...#62;> The number of Tn10 transposon s in E. coli genome s is maintained at a constant low level. DNA replication is required for Tn10 transposition . The inverted repeats of IS10R contain a GATC sequence , a target of dam methylation . Full article >>> (See Transposon .) m...

Translation

...equence s). ecoli - Translation s of Escherichia coli genomic CDS ( coding sequence s). Full article >>> Degeneracy Back translation of amino acid sequence s usually leads to a collection of possible base sequence s which can code for the amino acid sequence , due to the deg...

Transduction

... called an opsin. Full article >>> coli metabolic pathways to include signal- transduction pathways, transport protein s, regulation of gene expression , and t RNA s. Version5.0, released in June, contains detailed annotations of E. Full article >>> Biochemical Society ...

Substrate

...ample). However, some gene transcription in E. coli is under positive control. Positive Control of Transcription : CAP ... Full article >>> A natural or synthetic RNA molecule that cuts an RNA substrate . Cation. A positively charged ion. c DNA . DNA synthesized from an RNA ...

Strain

...train s Model of successive binary fission in E. coli A " strain " of E. coli is a family with some particular character istics that make it recognizable from other E. Full a...

Small intestine

...testinal mucosa . Full article >>> coli ( Escherichia coli ) A common bacterium found in the small intestine of vertebrates ; the most well-studied organ i...

Shuttle vector

...ells of more than one organ ism (e.g. in both E. coli and in yeast). Sibs An abbreviation for siblings....aintained in more than one type of host (e.g. E. coli and mammalian cells ). Full article >>> shuttle vector A recombinant DNA vector...

Segment

...he cosmid and a source of Tn5 are put into an E. coli cell . Full article >>> A segment of a DNA molecule necessary for the initiation of its replication ; generally a site recognized and bound by the proteins of the replication system. Related Terms: Deoxyribonucleic acid ...

Ribonucleotides

...pendent RNA polymerase ). The core RNA P from E. coli is composed of five subunits: 2 alpha subunits, beta, beta', and omega. Full article >>> deoxyribonucleic acid A polymer of deoxyribonucleotide s that is in the form of a double helix ; DNA is the genetic molecule of life in th...

Recombinant

...t proteins that are express ed in Escherichia coli [1] or other prokaryotic expression systems. Full article >>> Bacteria are formally haploid and thus don't go through a meiosis that will generate recombinant s. However, they can conjugate. In the example at left, the two ...

Purine

...ion for seven bacteria l genome s ( Escherichia coli , Bacillus subtilis, Myco plasma pneumoniae, Myco plasma genitalium, Helicobacter pylori, Haemophilus influenzae, ... Full article >>> Transition s (changes from a purine - A or G - to the other purine , or a pyrimidine - C o...

Proteins

... T Phage s: A phage which infects Escherichia coli . Viral parasites of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope . Full article >>> uniqueness, especially of enzymes in given reactions and of proteins in a given organ ...

Protein

... T Phage s: A phage which infects Escherichia coli . Viral parasites of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope . Full article >>> Genes encode the information necessary for synthesizing protein s , which, in turn play a...

Polypeptide

...f naturally occurring plasmid s first found in E. coli (e.g. Full article >>> Some intein polypeptide s are site -specific endonuclease s as well as protein splicing catalysts. Endonuclease action results in insertion of the intein nucleic acid in a target site . Facts ...

Polyp

...f naturally occurring plasmid s first found in E. coli (e.g. Full article >>> Some intein polyp eptide s are site -specific endonuclease s as well as protein splicing catalysts. Endonuclease action results in insertion of the intein nucleic acid in a target site . Fact...

Polymerase

...DNA without using a living organ ism, such as E. coli or yeast. Full article >>> The Pol...DNA without using a living organ ism, such as E. coli or yeast. Full article >>> Dr. Leslie Biesecker, of the National Human Genome Res...

Plaque

...of plaque assays of fd K on each E.coli K and E. coli B are diagrammed. Phage resulting from fd K infection of E.coli B were retested and gave many plaque s on both strain s. Full article >>> Recent studies suggest a link between arterial plaque deposits of cholesterol, antibodies...

Phage

...acterio phage lambda : A virus which infects E. coli , and which is often used in molecular genetics ... Lambda bacterio phage is the basis of many E. coli vectors which are used for c DNA and genomic DNA libraries. Filamentous bacterio phage s are ...

Peptide

...f naturally occurring plasmid s first found in E. coli (e.g. Full article >>> The completed poly peptide chain must be processed in one or more ways before it assumes its role as a mature protein or peptide . The activities, enzymatic or otherwise, of the proteins can be regulated ...

Pathogenic

...gical destruction. Full article >>> coli ( Escherichia coli ): A common Gram-negative bacterium present in human intestinal tract that has been studied intens...

Pathogen

...gical destruction. Full article >>> coli ( Escherichia coli ): A common Gram-negative bacterium present in human intestinal tract that has been studied intens...

Parasites

... T Phage s: A phage which infects Escherichia coli . Viral parasites of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope . Thymine : A nitrogenous base . Pairs with adenine in DNA molecule s. Full article >>> an association ...

Parasite

... T Phage s: A phage which infects Escherichia coli . Viral parasite s of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope . Thymine : A nitrogenous base . Pairs with adenine in DNA molecule s. Full article >>> These domain...

Package

...da phage particles for infection into Escherichia coli ; this permits cloning of larger DNA fragments (up to 45 kb) than can be introduced into bacteria l hosts in plasmid vectors . Full article >>> stack of intracellular membrane compartments ( organelle ) that function to modify ...

Organ

...ome s, notably those of the bacterium Escherichia coli , the yeast Saccharomyces cerevisiae , the fruit fly Drosophila melanogaster, ... Full article >>> Well, the organ ic spore s, I'm not really familiar with how they use those, because they don't use them a lot in this particular a...

Operon

... Operon Within its tiny cell , the bacterium E. coli contains all the genetic information it needs to m...s a sugar found in milk. If lactose is present, E. coli (the common intestinal bacterium) needs to produce the necessary enzymes to digest it. Three diffe...

MutS

...ed based on a preferential binding of Escherichia coli MutS protein to DNA molecule s containing mismatched bases . Full article >>> For example, mutation s in the genes responsible for methyl-directed mismatch repair , designated mutS , mutL, and mutH, increase the spontaneous...

Molecular Genetics

...ing frame (ORF)). Full article >>> coli , and which is often used in molecular genetics experiments as a vector , or cloning vehicle. Recombinant phage s can be made in which certain non-essential l DNA is removed and replaced with the DNA of interest. Full article >>&...

Microscope

... T Phage s: A phage which infects Escherichia coli . Viral parasites of this type are labeled T1 through T7. T2 was the first phage observed under the electron microscope . Thymine : A nitrogenous base . Pairs with adenine in DNA molecule s. Full article >>> The erroneous w...

Lytic cycle

... events of the lytic cycle are not completed. E. coli infected by a DNA bacteriophage may resume its normal existence, including reproducing itself. Where has the virus gone? Full article >>>...

Lambda phage

...da phage particles for infection into Escherichia coli ; this permits cloning of larger DNA fragments (up to 45 kb) than can be introduced into bacteria l hosts in plasmid vectors . Full article >>> A hybrid plasmid that contains cos site s at each end. Cos site s are recogni...

Lambda

... Lambda bacteriophage is the basis of many E. coli vectors which are used for c DNA and genomic D...be 970 meters high. For the bacterium Escherichia coli , the image would be 80 kilometers long . Full article >>> Artificially constructed ...

Klenow Fragment

...#62; Klenow Fragment : The large fragment of E. coli DNA polymerase I which lacks 5' -> 3' exonu...used for DNA sequencing , Klenow fragment of E. coli DNA polymerase I and Taq DNA polymerase , discriminate against dideoxynucleotides up to one thous...

Kinase

...ION . KLENOW FRAGMENT - The large fragment of E. coli DNA polymerase I which lacks 5' -> 3' exonuclease activity. Full article >>> Kinase : A kinase is in general an enzyme that catalyzes the trans fer of a phosphate group from ATP to something else. In molecular biolog...

Intestine

...that way actually. Full article >>> coli ( Escherichia coli ) A common bacterium found in the small intestine of vertebrates ; the most well-studied organ...

In vivo

...vo can be done in unicellular microbe s like E. coli unicellular eukaryotes like yeast and in mammalian cells grown in tissue culture . Full article >>> To increase the number of copies of a DNA sequence , in vivo by insert ing into a cloning vector that replicates within ...

Host strain

...l host strain s include HB101 (general purpose E. coli strain ), DH5a (ditto), JM101 and JM109 (suitable for growing M13 phage s), XL1-Blue (general-purpose, ... Full article >>> New Host Strain s for Stabilization and Modification of YAC Clones 60. Direct Isolation of a Centromeri...

Host

... host strain s include HB101 (general purpose E. coli strain ), DH5a (ditto), JM101 and JM109 (suitable for growing M13 phage s), XL1-Blue (general-purpose, ... Full article >>> The host cell wall to ruptures releasing the newly formed virus es. Upon entering the cell , the viral ...

Hfr cell

...s. Full article >>> F-factor An E. coli plasmid that encodes conjugative trans fer ("fe...ing an Hfr cell . Full article >>> coli genome was origin ally mapped by interrupted mating experiments, in which various Hfr cell s i...

Heterozygosity

...ed based on a preferential binding of Escherichia coli MutS protein to DNA molecule s containing mismatched bases . Full article >>> The rate of mutation determines the level of heterozygosity at a locus according to the neutral theory . Heterozygosity is simply the propo...

Glucose

...vage of lactose into glucose + galactose. In E. coli this enzyme is encoded by the lacZ gene . Often used as a reporter for assaying gene expression (see X-gal). Full article >>> Two types of a highly variable dis order in which abnormalities in the ability to make and/or use the ...

Genetics

...an ism's genome . Full article >>> coli , and which is often used in molecular genetics experiments as a vector , or cloning vehicle. Recombinant phage s can be made in which certain non-essential l DNA is removed and replaced with the DNA of interest. Full article >>...

Gel shift assay

...ess of MA DNA but not with the same amount of E. coli DNA . Full article >>>...

Fusion Protein

...ion of His-Tag fusion protein s from Escherichia coli ^ Nature. 2002 415(6868):141-7 Functional organ ization of the yeast proteome by systematic ana lysis of protein complexes ... Full article >>> fusion protein Depending on the context means one of two different things. Most c...

Escherichia coli

Escherichia coli T. Escherich, 1885 E. coli at 10,000x magnification Escherichia coli , usually abbreviated to E. Full article >>>...

Epitope

...nown as the antigenic determinant ). Escherichia coli ... Full article >>> Most epitope s are derived from polypeptide s ( proteins ) and reflect the individuality of the pathogen . Receptor s are PRRs (pattern recognition receptor s) In jawed vertebrates , the receptor s are B- c...

Environment

...rent value. Chao et al. (1977) grew wild type E. coli B in a chemostat. Full article >>> Niche The range of environment al variables such as temperature, humidity, etc. in which a species can survive and reproduce. Nuclear genome The portion of the genome contained in the nucl...

Downstream

...man intestinal tract. Hundreds of strain s of E. coli exist. One strain , K-12, has been completely sequence d. Full article >>> Downstream : See " Upstream / Downstream ". Duplex: A nucleic acid molecule in which two strand s are base pair ed with each other. E ... Full article...

DNA replication

...#62;> The number of Tn10 transposon s in E. coli genome s is maintained at a constant low level. DNA replication is required for Tn10 transposition . The inverted repeats of IS10R contain a GATC sequence , a target of dam methylation . Full article >>> polytene chromosom...

Deletion

... see if they produce progeny that can grow on E. coli strain K. Full article >>> deletion A mutation resulting from the loss of a small segment of DNA . deletion mutant A mutation in which a base pair is deleted delta Fan-shaped sediment deposit found at the mouth of a ri...

Cosmid

...he cosmid and a source of Tn5 are put into an E. coli cell . Full article >>> The current types are plasmid s, cosmid s, YAC's or a temperate- phage DNA . viral vector A viral DNA altered so that it can act as a vector for recombinant DNA . virion A single virus particle. ...

Copy number control

...ward transcript . Full article >>> coli F-factor replicon and offer strict copy number control limiting the number of BACs to 1-2 copies per cell . Full article >>>...

Conjugation

...#62;>> Conjugation Some bacteria , E. coli is an example, can trans fer a portion of their ...hollow hair-like appendage of a donor Escherichia coli cell that acts as a bridge for trans mission of donor DNA to the recipient cell during conj...

Conjugation tube

...hollow hair-like appendage of a donor Escherichia coli cell that acts as a bridge for trans mission of donor DNA to the recipient cell during conjugation . A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... Full article >>>...
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