Sentences with phrase «outer cell membranes»

The envelope of Gram - negative bacteria, such as E.coli, is composed of two barriers - the so called inner and outer cell membranes.

This work zeroes in on trying to stop construction of a bacterial cell layer called peptidoglycan, a mesh - like structure that, in gram - negative bacteria like E. coli, rests between the inner and outer cell membranes.

Some batter - ram their way through the outer cell membrane.

Not exact matches

Scientists think azotosomes might serve as cell membranes, a cell's outer skin, for alien organisms.

Han told the group about a set of compounds — all existing drugs — that help open channels in the outer membrane of cells in the VTA.

Several studies have used cell - surface markers — proteins found on the outer membranes of tumor cells — to identify glioblastoma stem cells; but the specific markers used have been controversial and can not reflect molecular processes going on within tumor cells.

The inner surface is «greasy» and is believed to interact with cell membranes, while the outer surface, once secreted into the blood, can interact with the patient's immune system.

The virus binds with the host cell's outer membrane via a pocket lined with a protein called clatherin.

In one, researchers working with mice at the Institute of Molecular and Cellular Biology in Singapore used antibodies to target proteins inside cancer cells — an impressive feat, since the antibodies were long considered too large to cross the cancer cell's outer membrane.

In Gram - negative bacteria, BAM is responsible for the biogenesis of beta - barrel proteins on the cells» outer membranes.

A University of Wyoming faculty member led a research team that discovered a certain type of soil bacteria can use their social behavior of outer membrane exchange (OME) to repair damaged cells and improve the fitness of the bacteria population as a whole.

By definition, gram - negative bacteria possess cell walls that consist of an outer membrane and a cytoplasmic membrane.

(Breast cancer is categorized and treated based on the presence or absence of three hormone receptors displayed on the outer membranes of cells.

Transport proteins are responsible for moving materials such as nutrients and metabolic products through a cell's outer membrane, which seals and protects all living cells, to the cell's interior.

They can penetrate the cell, bypassing its outer membrane, to deliver nucleic acids without harming or killing the cell.

«When we looked at the cells under the microscope, we saw neratinib, but not afatinib, causing large vesicles to form next to the cell's outer membrane.

Insulin can open up a cell's outer membrane like a key in a door lock and set in motion the machinery that feeds the cell glucose, which is converted to energy.

The MSRs were then coated with lipids that formed a thin supported lipid bilayer (SLB), which resembles the outer membrane of APCs and that the researchers then functionalized with a pair of T cell - stimulating antibodies that remain mobile in the lipid layer and can bind to receptor / co-receptor molecules on the surface of T cells.

ADGRE2 is composed of two subunits — a beta subunit located within the cell's outer membrane, and an alpha subunit located on the outside surface of the cell.

They also showed that the cephalosporinases are exported out of the bacterial cells, attached to the surface of special packages called outer membrane vesicles (OMVs).

Once these peptides find a bacterium, they nestle into its outer membrane, then shape - shift themselves into nanotubes, which act as spigots, draining the cell and killing it within minutes.

Meanwhile, other groups developed new ways of killing bacteria with vancomycin: One alteration found a novel way to halt cell wall construction, whereas another caused the outer wall membrane to leak, leading to cell death.

All human cells contain a protein called CD47 on their outer membrane coat.

Cell biologists previously didn't know whether the LppA protein propped up the cell wall, like pillars prop up a roof, or whether the outer membrane was tethered to the cell wCell biologists previously didn't know whether the LppA protein propped up the cell wall, like pillars prop up a roof, or whether the outer membrane was tethered to the cell wcell wall, like pillars prop up a roof, or whether the outer membrane was tethered to the cell wcell wall.

A cell membrane, plasma membrane or plasmalemma is a selectively permeable lipid bilayer coated by proteins which comprises the outer layer of a cell.

Hughes» graduate student Eli Cohen pursued the question of rod length control in Salmonella enterica using genetic tools with slow progress until, in one of his courses, he heard about the concept of the outer membrane tethering protein Lpp, that physically links the outer membrane to the cell wall.

The MexAB - OprM pump encompasses both inner and outer membranes found in Gram - negative bacteria and connects the cell's interior and periplasm (the compartment between both membranes) to the cell's exterior.

Using a high - powered microscope, the UCLA researchers observed that bacteria cells lost some of the structure and definition of their outer membranes, which indicated that resveratrol may work by altering and possibly weakening the structure of the bacteria.

Given that, then why doesn't the protein also chew through the cell's outer membrane and kill it?

The researchers incubate cells with tiny snippets of single - stranded DNA engineered to slip into the cells» outer membranes, covering each cell like the hairs on a tennis ball.

ATP is transported through further barrel pores across the mitochondrial outer membrane into the cytosol, which fuels life of human cells.

Tucked into the internal surface of the cell's outer membrane, these versatile molecules coordinate cellular responses to a multitude of signals that impinge from without

For the first time, scientists have demonstrated a simple charge - based mechanism for regulating the formation and dissolution of liquid - like structures that lack outer membranes inside cells.

GLIC has several large sub-units that lie outside the bacterial membrane in the outer part of the cell.

In this latest study, the researchers placed an antibody with a weak radioactive component onto the receptors on the T - cells» outer membrane.

Subjecting N. gonorrhoeae to the phenotypic microarray screening method for the first time, Sikora's team focused on seven proteins from the bacteria's cell envelope, which consists of the outer membrane, the cell wall and the inner membrane.

They wanted to know exactly how these subunits work together to insert the outer membrane proteins into the outer membrane or cell wall.

The cells» size made it easier to measure electrical currents across an ORC's outer membrane by puncturing it with a thin glass tube called a micropipette.

By interacting with the actin cytoskeleton, underneath the cell outer membrane, and other structural proteins of the tight junctions, Alix ensures the formation of the actomyosin - tight junction complex at a specific position between adjacent cells.

The viruses also induce the bacteria to produce a second set of proteins that helps guide the assembly of P22 spheres, from the coat proteins, on the outer surface of the cell membrane.

The mitochondrial pathway of cell death (apoptosis) starts by permeabilization of the mitochondrial outer membrane which becomes peppered with small holes.

Gram - negative bacteria is particularly resistant to antibiotics because of its cells» impermeable lipid - based outer membrane.

BOSTON — The outer membrane of a cancer cell ruffles like the dress of a flamenco dancer.

The protein LecA on the surface of the bacteria binds to sugar on special lipid molecules, so - called Gb3 lipids, which are present in the outer membrane of human cells.

The cells of the outer layer will later give rise to the extraembryonic membranes and the placenta after the blastocyst implants in the wall of the uterus, while the embryo itself develops from the inner cell mass.

Two accessory proteins orchestrate the Cpx - TCS: The periplasmic protein CpxP inhibits the Cpx - TCS in unstressed cells and detects misfolded envelope proteins; the outer membrane lipoprotein NlpE activates the Cpx - TCS during biofilm formation.

The outer portion of the cell is the cell membrane, shown here in orange.

All cells build up such a charge along their membranes, or outer layers.

Results: A recent study of the contaminant - reducing bacterium Shewanella oneidensis provides the first evidence that the microbe maneuvers proteins within the bacterial cell into its outer membrane to contact metal directly.

A bacterium consists of an outer wrapper called the cell membrane, and inside the membrane is a watery fluid called the cytoplasm.