Accordingly, BRCA1 and BRCA2 in their isolated state are not the same molecules as DNA as it exists in the body.
Also, a gas molecule does not care what other molecules far away from it are doing.
They are, as might be expected from such complex molecules, not cheap compared with ordinary solvents.
Because of abundant solar ultraviolet radiation at the surface, organic molecules might not be preserved as well as clay minerals.
That applies not only to liquid molecules, but pipeline gas as well.
Critically, it neglected to check whether thalidomide affected pregnant women, assuming that its molecules could not cross the placenta from mother to child.
Agios also is likely, based on its existing competencies, to focus on making small molecules, not the expensive proteins that currently dominate the rare disease space.
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Some materials, however, are easier to spin in this way than others, for if the molecules do not stick together, the liquid stream will break up.
The idea itself is not new--using existing molecules as a template is a hallmark of drug development.
The Golden Triangle Partnership is not, however, looking for new molecules to turn into chemically pure drugs.
For example, although the findings concerning water are exciting, the presence of water may mean that organic molecules indicative of life were not well-preserved, Grotzinger said.
We take a million of these small molecules--they are not drugs but the starting points for drugs--and mix each one of those prototype drugs with a protein we have in a test tube.
The light does not form an image of the reacting molecules, but its interaction with those molecules specifically, which frequencies are absorbed, and how strongly allows Dr Zewail and his followers to work out how the molecules distort and reorganise themselves during the course of a reaction.
In a paper in Trends in Endocrinology and Metabolism they argue that insulin resistance is another side-effect of metabolic syndrome whose cause is lipid molecules poisoning tissues in which they are not supposed to be present in large quantities.
These work by binding chemically to that enzyme's active site to inhibit its action. (Protease cuts the raw chain of virus protein produced by a subverted cell into functional molecules.) However, the mechanism is not quite identical.
Although the fibre in question could not conduct electricity, the same technique should work with conductive molecules, which could serve as minute diodes and other circuit components.
Its sufferers are often treated with haloperidol, which blocks the receptor molecules that dopamine stimulates, but this drug does not work well in everyone and can have unpleasant side-effects.
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But even if Curiosity finds them, that's not proof that life existed -- after all, these molecules are found in bus exhaust and meteorites, too, says Steve Squyres, part of the Mars Science Laboratory science team.
So far, the device--which electrifies molecules of benzene, allowing electrons to flow through and not interfere with one another--only exists on the drawing board.
The purpose was to determine not only what was in the samples in terms of atoms and molecules, but also the precise structures in the interface layer between the original paint and the varnish.
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The engine constantly throttles up and down, not only to counter the drag on the satellite from residual air molecules in near space but also to smooth the flight of the vehicle to minimise the noise in the gravity measurements.
Many proteins will not work properly unless they are coated with the right mixture of sugar molecules.
This need for adjunct sugar molecules is one reason why making protein-based drugs is not as simple as it looks.
Exactly which molecules Codexis is most interested in these days, Dr Shaw is not yet willing to say.
These, in case you did not know, are small electric motors whose shafts rotate on bearings made of gas molecules.
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Because it's not easy, to brew alcohol you need sugar, but the chains of sugar molecules that form cellulose are very tough to break.
The result is ice-as-poetry, a visual panorama that is greater than the sum of its frozen molecules, making clear that glaciers deserve our reverence, and are certainly not just an obstacle to be removed so that oil companies can drill for more oil.
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Both it and its descendants, so-called buckytubes, which are cylindrical molecules made of pure carbon, are still much admired, but they have not yet lived up to their promise.
Pacific Biosciences of Menlo Park, California, for example, eschews nanopores in favour of a technique that uses fluorescence to watch DNA molecules being built up, base by base, though it reckons it will not have a product until 2010.
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For micro-organisms, after all, evolution is not just a matter for the textbooks, but the only way to fight back against hostile thermostats and molecules, to say nothing of virologists.
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