When a PAP connection was opened, each end sent the other an ATP request which basically meant " send me more data ".

When this insulation is insufficient to maintain body temperature, they may resort to shivering -- rapid muscle contractions that quickly use up ATP, thus stimulating cellular metabolism to replace it and consequently produce more heat.

When free nucleotides are washed over this chip, light is produced as ATP is generated when nucleotides join with their complementary base pairs.

When erythrocytes undergo shear stress in constricted vessels, they release ATP which causes the vessel walls to relax and dilate so as to promote normal blood flow.

When capsaicin is present, it alters the conformation of the SERCA, and thus reduces the ion movement ; as a result the ATP energy ( which would have been used to pump the ions ) is instead released as thermal energy.

When ATP levels are high, ATP will bind to an allosteric site on phosphofructokinase, causing a change in the enzyme's three-dimensional shape.

When the energy in ATP is used during cell work ( ATP hydrolysis ), protons are produced.

* When the body has ample carbohydrates available as energy source, glucose is completely oxidized to CO < sub > 2 </ sub >; acetyl-CoA is formed as an intermediate in this process, first entering the citric acid cycle followed by complete conversion of its chemical energy to ATP in oxidative phosporylation.

When operating with the benefit of ATP hydrolysis, AC motors generate per-filament forces of 8 – 9 pN, which is far greater than the per-filament limit of 1 – 2 pN for motors operating without ATP hydrolysis.

When he returned to the tour later in 1986, he won three ATP tournaments, but in 1987 he failed to win a title for the first time since turning pro.

When an Hsp70 protein is ATP bound, the lid is open and peptides bind and release relatively rapidly.

When not interacting with a substrate peptide, Hsp70 is usually in an ATP bound state.

When ATP is hydrolyzed to ADP the binding pocket of Hsp70 closes, tightly binding the now-trapped peptide chain.

When light activates the retinal, the protein pumps protons across the membrane, and the organism makes ATP using the proton gradient generated.

When the chloroplast runs low on ATP for the Calvin cycle, NADPH will accumulate and the plant may shift from noncyclic to cyclic electron flow.

When John McEnroe announced his official return to the ATP Pro Tour in 2006 he teamed up with Björkman to win the doubles title at the SAP Open in San Jose.

When Santoro successfully defended his 2007 title by winning the 2008 Newport tournament at the age of 35, he became the oldest tennis player to win back-to-back championships at an ATP singles event.

Neurons generate electrical signals that travel along their axon s. When a pulse of electricity reaches a junction called a synapse, it causes a neurotransmitter chemical to be released, which binds to receptors on other cells and thereby alters their electrical activity.

When a ligand binds to the GPCR it causes a conformational change in the GPCR, which allows it to act as a guanine nucleotide exchange factor ( GEF ).

When oxygen binds to the iron complex, it causes the iron atom to move back toward the center of the plane of the porphyrin ring ( see moving diagram ).

When it is present at a much higher concentration, it also binds to OR3, inhibiting transcription from P < sub > RM </ sub >, thus regulating its own levels in a negative feedback loop.

When a court binds itself, this application of the doctrine of precedent is sometimes called horizontal stare decisis.

When pulled tighter, the rope passing over itself binds it in place.

When released, ADH binds to V2 G-protein coupled receptors within the distal convoluted tubules, increasing cyclic AMP, which couples with protein kinase A, stimulating translocation of the aquaporin 2 channel stored in the cytoplasm of the distal convoluted tubules and collecting ducts into the apical membrane.

When a ligand binds to a G protein-coupled receptor ( GPCR ) that is coupled to a Gq heterotrimeric G protein, the α-subunit of Gq can bind to and induce activity in the PLC isozyme PLC-β, which results in the cleavage of PIP < sub > 2 </ sub > into IP < sub > 3 </ sub > and DAG.

When the foreign insulin binds with the antibodies, it does cannot work as intended.

When such a conflict arises, all Superior Courts have the discretion to choose which rule they like until the California Supreme Court grants review and creates a single rule that binds all courts statewide.

When it is a player's turn to act, the first verbal declaration or action he takes binds him to his choice of action ; this rule prevents a player from changing his action after seeing how other players react to his initial, verbal action.

When adrenocorticotropic hormone reaches and binds to its target, the adrenal gland, the adrenal gland in turn releases the final key messenger in the cascade, cortisol.

When these residues are phosphorylated, the CTD binds to various protein factors that promote transcript maturation and modification.

When the inducer binds the receptor, it activates transcription of certain genes, including those for inducer synthesis.

When acetylcholine binds to an already depolarized receptor, it cannot cause further depolarization.

When a T < sub > h </ sub > cell encounters and recognises the antigen, on an APC, the TCR-CD3 complex binds strongly to the peptide-MHC complex present on the surface of professional APCs.

When prolactin binds to the receptor, it causes it to dimerize with another prolactin receptor.

When a small proportion of finely ground bentonite clay is added to hard sand and wetted, the clay binds the sand particles into a moldable aggregate known as green sand used for making molds in sand casting.

When a peptide hormone binds to receptors on the surface of the cell, a second messenger appears in the cytoplasm, which triggers intracellular responses.

When an aminoacyl-tRNA initially binds to its corresponding codon on the mRNA, it is in the A site.

When bird chicks ingest melatonin-rich plant feed, such as rice, the melatonin binds to melatonin receptors in their brains.

When all moisture evaporates, the acacia gum binds the pigment to the paper surface.

When transmural pressure increases, sphingosine kinase 1 phosphorylates sphingosine to S1P, which binds to the S1P2 receptor in plasma membrane of cells.

When the concentration of cAMP rises ( e. g., activation of adenylate cyclases by G protein-coupled receptors coupled to G < sub > s </ sub >, inhibition of phosphodiesterases that degrade cAMP ), cAMP binds to the two binding sites on the regulatory subunits, which leads to the release of the catalytic subunits.