Search results
Results from the WOW.Com Content Network
In molecular biology, a two-component regulatory system serves as a basic stimulus-response coupling mechanism to allow organisms to sense and respond to changes in many different environmental conditions. [1] Two-component systems typically consist of a membrane -bound histidine kinase that senses a specific environmental stimulus, and a ...
EnvZ/OmpR is a two-component regulatory system widely distributed in bacteria and particularly well characterized in Escherichia coli. Its function is in osmoregulation, responding to changes in environmental osmolality by regulating the expression of the outer membrane porins OmpF and OmpC. EnvZ is a histidine kinase which also possesses a ...
From PDB: 3CHY . In molecular biology, a response regulator is a protein that mediates a cell 's response to changes in its environment as part of a two-component regulatory system. Response regulators are coupled to specific histidine kinases which serve as sensors of environmental changes.
Ethylene can bind to at least five different membrane receptors. Although structurally diverse, the ethylene receptors all exhibit similarity to two-component regulatory system in bacteria, indicating their common ancestry from bacterial ancestor. Ethylene binds to the receptors on the cell membrane of the endoplasmic reticulum.
The KdpD/KdpE two-component system is a regulatory system involved in controlling potassium transport and intracellular osmolarity of pathogenic bacteria. It plays an important role in potassium transport for osmoregulation of bacteria.
Following secretion, peptide autoinducers accumulate in extracellular environments. Once a threshold level of signal is reached, a histidine sensor kinase protein of a two-component regulatory system detects it and a signal is relayed into the cell. As with AHLs, the signal ultimately ends up altering gene expression.
The expression of the ethanolamine utilization genes (eutG) is influenced by two different mechanisms. The first is a two component regulatory system that senses the presence of ethanolamine and the second mechanism is an AdoCbl riboswitch that senses the presence of AdoCbl, a cofactor needed for the breakdown
Repressor LexA or LexA (Locus for X-ray sensitivity A) [1] is a transcriptional repressor ( EC 3.4.21.88) that represses SOS response genes coding primarily for error-prone DNA polymerases, DNA repair enzymes and cell division inhibitors. [2] LexA forms de facto a two-component regulatory system with RecA, which senses DNA damage at stalled ...