A sigma factor (σ factor or specificity factor) is a protein needed for initiation of transcription in bacteria. It is a bacterial transcription initiation...

Anti-sigma factors are small proteins that bind to sigma factors and inhibit transcriptional activity in regulating prokaryote gene expression. Anti-sigma...

\left(\operatorname {sinc} {\frac {k}{m}}\right)^{p}} is the Lanczos σ factor, which is responsible for eliminating most of the Gibbs phenomenon. This...

$350 million in cost savings thanks to Six Sigma, which was an important factor in the spread of Six Sigma (this figure later grew to more than $1 billion)...

the sigma factor sigma-54 (σ54, sigma N, or RpoN), a protein in Escherichia coli and other species of bacteria. RpoN antagonizes RpoS sigma factors. Originally...

Sigma (/ˈsɪɡmə/ SIG-mə; uppercase Σ, lowercase σ, lowercase in word-final position ς; Ancient Greek: σίγμα) is the eighteenth letter of the Greek alphabet...

transcription factors are necessary for transcription to occur. In bacteria, transcription initiation requires an RNA polymerase and a single GTF: sigma factor. In...

locus for sigma F, which begins to be expressed in the forespore. In order to prevent sigma F expression in the mother cell, an anti-sigma factor, which...

called the sigma factor (σ-factor), the polymerase can recognize specific binding sequences in the DNA, called promoters. The binding of the σ-factor to the...

{\displaystyle \sigma _{c}} ), the Z-factor is defined as: Z-factor = 1 − 3 ( σ s + σ c ) | μ s − μ c | {\displaystyle {\text{Z-factor}}=1-{3(\sigma _{s}+\sigma _{c})...

polymerase, sigma S, also called katF) encodes the sigma factor sigma-38 (σ38, or RpoS), a 37.8 kD protein in Escherichia coli. Sigma factors are proteins...

RNA transcription factor known as a sigma factor. RNA polymerase core enzyme binds to the bacterial general transcription (sigma) factor to form RNA polymerase...

sigma, Sigma, Σ, σ, or ς in Wiktionary, the free dictionary. Sigma (Σ or σ, word-final lowercase ς) is the 18th letter of the Greek alphabet. Sigma may...

the factors here are as follows: Pr ( q α 2 < k s 2 σ 2 < q 1 − α 2 ) = 1 − α , {\displaystyle \Pr \left(q_{\frac {\alpha }{2}}<k{\frac {s^{2}}{\sigma ^{2}}}<q_{1-{\frac...

Amongst other modifications, virus T4 changes the sigma factor of the host by producing an anti-sigma factor so that the host promotors are not recognized...

small omega (ω) subunit. A sigma (σ) factor binds to the core, forming the holoenzyme. After transcription starts, the factor can unbind and let the core...

it operates in conjunction with a sigma factor (σ32) which is known to also regulate many other genes. Sigma factor-RNA thermometer combinations have...

{\displaystyle \sigma _{ij}(r,\theta )={\frac {K}{\sqrt {2\pi r}}}\,f_{ij}(\theta )+\,\,{\rm {higher\,order\,terms}}} where K is the stress intensity factor (with...

gene rpoE (RNA polymerase, extracytoplasmic E) encodes the sigma factor sigma-24 (σ24, sigma E, or RpoE), a protein in Escherichia coli and other species...

Synechocystis possesses the 70S sigma factor (σ70), which can be divided into three groups. Group 1 sigma factors are critical for cell viability. Group...

The gene rpoF (RNA polymerase, flagellum F) encodes the sigma factor sigma-28 (σ28, or RpoF), a protein in Escherichia coli and other species of bacteria...

polysomes, the Pribnow box, the central dogma of molecular biology and the sigma factor. Its title is also a reference to the Lilliputians, the microscopic men...

transcription initiation. Sigma factors act as mediators of sequence-specific transcription, such that a single sigma factor can be used for transcription...

bacteria The promoter is recognized by RNA polymerase and an associated sigma factor, which in turn are often brought to the promoter DNA by an activator...

{\sigma (r_{\mathsf {A,B}};\kappa )\sigma (-r_{\mathsf {A,B}};\kappa )}},} where σ ( r ; κ ) = 10 r / s 10 − r / s + κ + 10 r / s {\displaystyle \sigma...

disorder, another term for repetitive strain injury Regulator of sigma D, an anti-sigma factor in E. coli bacteria Relative standard deviation Robust standard...

The four-factor formula, also known as Fermi's four factor formula is used in nuclear engineering to determine the multiplication of a nuclear chain reaction...

is controlled by the activity of the chemotaxis sigma factor,  σD. The activity of this sigma factor peaks at the start of the stationary phase. Autolysins...

regulator of sigma 70-dependent gene transcription. All bacterial RNA polymerases have a subunit called a sigma factor. The sigma factors are important...

In physics, the dissipation factor (DF) is a measure of loss-rate of energy of a mode of oscillation (mechanical, electrical, or electromechanical) in...