signal

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Related to signally: signalling, singly

sig·nal

(sig'năl),
1. Something that causes an action or conveys information.
2. A DNA template sequence that alters RNA polymerase transcription.
3. The end product observed when a specific sequence of DNA or RNA is deleted by some method.
4. The message transmitted on binding of an agonist to a receptor.

signal

(sĭg′nəl)
n.
Biology A physical entity, such as a chemical or an electromagnetic wave, that activates a cell receptor and elicits a specific response.
v. sig·naled, sig·naling, sig·nals or sig·nalled or sig·nalling
v.tr.
To cause an effect in (a cell) by the activation of a receptor, as by a neurotransmitter or hormone.

sig′nal·er, sig′nal·ler n.

signal

A measurable or recognisable indicator of an event or process.

signal

Medtalk A measurable or recognizable indicator of an event or process. See Magnetic resonance signal, Sexual body signal.

sig·nal

(sig'năl)
1. Something that causes an action.
2. A DNA template sequence that alters RNA polymerase transcription.
3. The end product observed when a specific sequence of DNA or RNA is deleted by some method.
4. Anything or action that communicates something.

signal

1. audible or visible indications to animals in behavioral conditioning. Many signals have had long-term use in the animal world and are used worldwide. Whoa and Getup, Heel and Sit are common examples. Getawayback is perhaps more colloquial. Many sheepdogs are trained to react to whistles and performing animals are usually trained to react to gestures with the hand.
2. in biochemical terminology relates to staging in reactions; see signal sequence.

signal peptidase
an integral membrane protein located on the luminal surface of the endoplasmic reticulum that cleaves the signal peptide and frees the protein for folding and export.
signal recognition particle (SRP)
a particle composed of six different proteins and one small (7S) RNA that binds to the signal peptide as it emerges from the ribosome, temporarily halting the synthesis of the protein while the complex is transported to the endoplasmic reticulum where the SRP recognizes and docks to a docking protein located on the cytoplasmic surface followed by the transfer of the ribosome to a ribosome receptor on the membrane; the SRP and its docking protein are released from the ribosome and translation resumes.
signal transduction proteins
proteins which may be a protein kinase, an ion channel forming protein (as in nerve cells), or a protein that undergoes some energy dependent change in which the energy is supplied by the hydrolysis of a higher energy compound such as guanosine triphosphate.
References in periodicals archive ?
The Greenspan Fed signally failed to understand the implications of the mid-1990s productivity acceleration in the United States.
At this point, however, one misses that which is signally lacking in the volume as a whole: a sustained analysis of the poetry in light of critical adjustments Patten so carefully advances as seminal to reading Ferguson's prose.
And if they are also able to do something to curb the inordinate expenses claimed by MEPs, cut back on the outlandish freebies, and crack down on the massive fraud, they will have achieved something on behalf of the British taxpayer which the Conservatives, Labour and the Liberal Democrats have all signally failed to do.
Melosh notes that although modem day critics denounce matching because of its denial of "the difference that is at the heart of adoption," she imaginatively suggests that matching "might be seen, instead, as a signally American kind of self-construction: even kinship, the last redoubt of biology and destiny, might be imitated and improved by social engineering" (p.
The genius which Oscar Wilde claimed to put into his life most signally failed him that February day in 1895 when he picked up the card thrown down in challenge by his lover, Lord Alfred Douglas' scarlet screaming father, Lord Queensberry, and initiated the sequential trinity of trials which were to be followed, as surely as the night the day, by Reading Gaol and social eclipse.
All of this thinking led up to this study of whether performance time could be signally affected by the "runners' positioning" on the track.
The editors make it clear in their introduction (addressed primarily to a wider readership) that they have a double aim: to address this readership and make Wolfram's work more widely known, but also to be of interest and profit to experts in the field (here they are signally more successful than was, for the most part, a recent Companion to Wolfram's `Parzival').
Some have signally failed to grasp the concept and have ended up giving the much-rehearsed speech of their life to themselves.
Not only did Gray signally fail to put his weight behind the beleaguered company.
Nobody today would question the importance of looking after your customer," says Peter Hughes of Amethyst, "yet for many, CRM has signally failed to deliver the anticipated benefits.
Of the rest, the vast majority have remained in the city, signally the long-term health of the economy and the continued perception of New York as the business capital of the world.
The agreement to step up bilateral strategic dialogue shows how signally important the Bush administration regards the Japan-U.