They receive signals from outside the cell via partner
receptors on the cell surface, and G - proteins help deliver those signals to their proper destinations within the cell.
The group was then able to sort the cells using markers
expressed on the cell surface, to help pull out successfully edited cells for research, and eventually for therapeutic use.
And even when a growth factor sends its signal to grow by attaching to
receptors on the cell surface, a cell must decide whether it has sufficient nutrients to obey.
The heme - bound HasA protein transfers heme via receptor proteins
on the cell surface of the bacterium, P. aeruginosa.
Multiple round
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A critical discovery in this research was finding that the novel progenitor has a receptor protein
on its cell surface called KDR, or vascular endothelial growth factor receptor 2, which until now, was thought to be restricted to endothelial cells that form vessels, the progenitors for endothelial cells and the progenitors blood cells.
In particular, it has evolved to show itself three to nine months after infection, allowing its own destruction by displaying
antigens on its cell surfaces so the dog's immune system can destroy it.
The good news about the complex interconnectivity is that the scientists also were able to find a potential future point of intervention: When they gave a drug that increased AMPA receptor
expression on the cell surface, the spines assumed a more healthy, mature state.
They might also come up with a way to select the right cells out of a mixed population; Anand Swaroop, an ophthalmology researcher at the University of Michigan at Ann Arbor, is working on a way to identify and weed out the photoreceptor cells by focusing on proteins
present on cell surfaces.
This antibody activates an
integrin on the cell surface of basal progenitors and thus stimulates their proliferation,» explains Denise Stenzel, who headed the experiments.
«We have shown in this proof - of - concept study that PSMA could serve as a biomarker for MR - based molecular imaging due to its high concentration within target cells, limited expression within non-targeted tissues and
accessibility on the cell surface,» said Sangeeta Ray, Ph.D., principal investigator for the study and assistant professor in the Russell H. Morgan Department of Radiology and Radiological Science at the Johns Hopkins Medical Institutions in Baltimore, Md..
These drugs also bind to receptors
on the cell surface for adrenalin, counteracting its effect, including its influence on memory formation, it is thought.
Instead they identified a third way: IL - 6 can also be
displayed on the cell surface of dendritic cells and thus be directly presented to T cells.
Whitings occur when the cyanobacteria fix atmospheric CO2 through the formation of CaCO3
on their cell surfaces which leads to precipitation to the ocean floor and subsequent entombment in mud.
Here, cells expressing the interacting domains of v - and t -
SNAREs on the cell surface were found to fuse spontaneously, demonstrating that SNAREs are sufficient to fuse biological membranes.
One of the genes they focused on was SCARB1, which encodes for Scavenger Receptor B1 (SR - B1), the major receptor for
HDL on cell surfaces.
Researchers already knew that there was a time lag of between 1 and 3 hours between the synthesis of Class II molecules within the APC and their
appearance on the cell surface, combined with antigen.
disruption of the cell wall barrier by reactions of chlorine with target sites on the cell surface
Measuring changes in a voltage bias applied to the saline reveals how close the capillary tube is to the cell, allowing researchers to scan subtle structures
on the cell surface without disrupting them.
Cadherin - 22 is
located on cell surfaces, allowing hypoxic cancer cells to stick together and migrate collectively as a group, said Uniacke.
In addition to regulating newly synthesized apCAM, serotonin also altered the amount of preexisting
apCAM on the cell surface of the presynaptic sensory neurons.
The impulses cause glutamate (one of the brain's main neurotransmitters) to pop out of one nerve cell and travel across the synapse to activate the next by binding to its receptors, chemically active signaling
stations on the cell surface.
The team used patterned photoactivation non-linear SIM to produce videos showing structural proteins break down and reassemble themselves as cells move and change shape, as well as the dynamics of tiny
pits on cell surfaces called caveolae.
These results show that in non-transformed cells, S1P induces a rearrangement of the actin cytoskeleton and stimulates proteolytic
activity on cell surfaces.
The pathway increases the activation of HIF - 1a (hypoxia inducible factor 1 alpha) and produces more glucose
transporters on the cell surface — both key changes that promote glycolysis in cancer cells.
Based on cell surface markers known as CD4 and CD8, T cells generally fall into two broad categories: CD4 — positive helper T cells, which ¬ help activate other immune cells and CD8 - positive cytotoxic T cells, which kill cells that are cancerous or infected with viruses.
Like in the Wnt signaling pathway, ligands bind to the
EGFR on the cell surface and initiate a cascade of events in the cell that in this case lead to regulation of genes that control cell cycle progression.
The model predicted that the time scales of receptor (de) activation
kinetics on the cell surface and the interior compartments were comparable.
A team there, led by stem - cell pioneer Irving Weissman, MD, demonstrated that many aging cells, and most cancer cells, display a protein called
CD47 on the cell surface.
When α or β secretase cleave
APP on the cell surface, the N - term mCherry containing domain is released into the medium and the 1:1 fluorescence intensity ratio between the red and green channels is lost.
Multiple round bumps
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