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Amazing Cell Tricks: Contour Map Navigation

Watch a cell divide, and if things go well, it always divides in the middle.  How does a cell figure out where its middle is?  It follows its contour map.  PhysOrg titled its entry, “Dividing cells find their middle by following a protein ‘contour map’.”     Cell division, or cytokinesis, is a precisely-controlled operation […]

Bacterial Flagellar Motor Has a Protein Clutch

The bacterial flagellum, the whiplike outboard motor that has become an icon of intelligent design, has another artificial-looking part: a clutch.  Science reported this in “machine language” as follows:1 The bacterial flagellum, powered by a motor that generates 1400 pN-nm of torque, can rotate at a frequency of greater than 100 Hz.  EpsE [the clutch […]

Magic Box in the Cell Baffles the Experts

Put a string of amino acids into this magic box, and it comes out all precisely folded into a protein.  How does it do it?  A molecular machine described by Science Daily has scientists baffled.  Ironically, its name is TRiC.     TRiC is a chaperonin, a member of a class of molecular machines that […]

Few Typos Get Past Your Spell Checker

Inside your cells are thousands of spell checkers that put any human typist to shame.  In a process critical to all living things, RNA Polymerase II transcribes DNA into RNA rapidly with high fidelity.  Even very similar chemical letters are accurately discriminated by this wonder of a molecular machine that is described in Science Daily. […]

Darwinism Demonstrated in the Lab

Lenski’s done it.  The champion of Avida, a computerized evolution demo (see Evolution News) has demonstrated Darwinian evolution with real live organisms.  His achievement announces his inauguration into the prestigious National Academy of Sciences.1     Lenski and team ran one of the longest-running evolution experiments ever with E. coli bacteria.  After more than 30,000 […]

Cell Electronics Is High-Tech

To describe a living cell these days, you have to borrow electronics lingo.  Notice how two recent articles described cell specs: Ham radio immunity:  What acts like a radio dial, a signal amplifier, and a precision rheostat?  Your immune system, according to Science Daily.  Scientists at St. Jude Children’s Research Hospital described how the cell […]

Fitting Data to Darwinism Takes Creativity and Spin

Fairly regularly, papers appear in journals under the heading of Evolution.  The ones dealing with genetics tend to be hard to follow.  They are filled with jargon, correlation scores, charts and network diagrams.  They employ algorithms and databases unfamiliar to the lay reader.  Overall, though, they claim to find support for Darwin’s tree of life […]

Watch for Falling Amino Acids

A long-standing problem of origin-of-life theories is how proteins became left-handed.  Amino acids, the building blocks of proteins, come in right-handed and left-handed forms, yet life uses only the left-handed form.     The two isoforms are otherwise identical—yet one amino acid of the wrong hand in a protein spells doom for its function.  Wherever […]

Darwin and Complexity: Another Genetic Solution?

It remains one of the biggest obstacles to belief in evolution that a random, unguided process could build an eye, a wing or any of thousands of complex structures.

Scientist Harnesses ATP Synthase

How would you like shorter waits at airports?  fast screening for disease?  the ability to detect biological warfare agents quickly?  That may be possible soon – thanks to an amazing man-and-nature cooperative technology reported by Science Daily.  A team led by Wayne Frasch at Arizona State is on the verge of an invention that can […]

The Root Route

Why don’t roots push a plant right out of the ground?  It’s a question only a scientist or an 8-year-old kid would ask.  The answer is more amazing than either would have realized.  Root hairs feel their way around obstacles and find the openings, in the dark, by means of a complex interplay of proteins […]

Why Blood Clots Are Stretchy

A team of biophysicists at University of Illinois ran a computation for six months to find out why blood clots are stretchy.  The primary protein in the clot, fibrinogen, can stretch two to three times its resting size.  By studying the force on every atom in the protein, Science Daily said, they produced a force […]

Did Darwinism Build the Nuclear Pore Complex?

After nine years of work, three universities including a team at Rockefeller University completed a beautiful new model of the nuclear pore complex.  The story is told by Science Daily.     The article attributed the origin of this exquisite gatekeeper of the nucleus to evolution: “their findings provide a glimpse into how the nucleus […]

Nose Code Rockets Smell Discrimination

You have a code in your nose.  Scientists working on fruit fly olfactory systems have found that a mapping mechanism between components maximizes the fly’s ability to discriminate smells.  The coding system provides a non-linear response that appears finely tuned to maximize the information content of odor inputs.     The components of this system […]

A Pitcher of Health, and Reasons to Love Slime

Pitcher plants contain chemicals that just might help medicine and agriculture, reported PhysOrg.  A Japanese team found a myriad of interesting proteins in this “evolutionary marvel,” a plant that eats insect meat.     Now for some slimy good news.  PhysOrg said, “You know algae.  It’s the gunk that collects on the sides of a […]
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