Archaeal flagellar filament [Biophysics and Computational Biology]>

Edit PNAS 13 Sep 2016
The bacterial flagellar apparatus, which involves ∼40 different proteins, has been a model system for understanding motility and chemotaxis. The bacterial flagellar filament, largely composed of a single protein, flagellin, has been a model for understanding protein assembly. This system has no homology to the eukaryotic flagellum, in which the... ....

Elucidating structure of bacterial flagellar motor protein

Edit Science Daily 08 Sep 2016
Researchers used biochemical techniques and electron microscopy to uncover the structure of the bacterial MotA protein, which forms part of the propeller motor (flagellum). Three-dimensional analysis found it is composed of a transmembrane component and cytoplasmic domain, while MotA molecules were shown to form stable tetramer complexes with other MotA molecules ... ....

Recognition and targeting in flagellum assembly [Biochemistry]>

Edit PNAS 30 Aug 2016
The flagellum is a complex bacterial nanomachine that requires the proper assembly of several different proteins for its function. Dedicated chaperones are central in preventing aggregation or undesired interactions of flagellar proteins, including their targeting to the export gate. FliT is a key flagellar chaperone that binds to several flagellar... ....

Physicist Awarded NSF Grant to Study Collective Behavior of Active Matter (Syracuse University)

Edit Public Technologies 17 Aug 2016
(Source. Syracuse University). A physicist in the College of Arts and Sciences has been awarded a major grant to support her ongoing study of active matter-collections of self-driven entities that take energy from the environment to produce coordinated motion. M. Cristina Marchetti ... Kenan Jr ... Marchetti is focusing on Myxococcus xanthus, a soil-dwelling bacterium that seems to 'glide' on a solid surface, without use of a flagellum ... (noodl....

Nanorobots That Target Cancer Cells: Say Goodbye To Chemotherapy And Its Toxic Side Effects

Edit Inquisitr 16 Aug 2016
Nanorobots may replace traditional chemotherapy soon. Scientists have designed microscopic “robots” that are capable of precisely targeting cancer cells ... Although it appears that the bacteria are being pulled along with a magnet, PolyMTL explains that each bacterium is self-propelled by dual clusters of flagellum, and their movement and coordination is controlled via computer ... The group only published its findings yesterday....

Speed-dependent chemotaxis in marine bacteria [Biophysics and Computational Biology]>

Edit PNAS 02 Aug 2016
Chemotaxis underpins important ecological processes in marine bacteria, from the association with primary producers to the colonization of particles and hosts. Marine bacteria often swim with a single flagellum at high speeds, alternating “runs” with either 180° reversals or ∼90° “flicks,” the latter resulting from a buckling instability of the... ....

President Varela presides over the Security Council of the SENAN Base, and establishes a new Drug Enforcement Task Force (Prime Minister's Office of the Republic of Panama)

Edit Public Technologies 25 Jul 2016
(Source. Prime Minister's Office of the Republic of Panama). Panama, 25 July, 2016 ... During the session of the Security Council on the base of the National Service Air Naval Station (SENAN) in Cocolí, the President announced that the priority of FEAN is to shield Panama and increase control to stop the growing drug trafficking and to cooperate with the region on the fight against this flagellum ... (noodl. 34682364) ....

Scientists have developed a tiny robot prototype to that could help fight disease in the future

Edit Business Insider 22 Jul 2016
The robots are modeled after African trypanosomes, bacteria that can hide their flagellum ... The reason that these particular bacteria are the perfect models is because they has the unique ability to control their flagellum, the tail-like part of their bodies that helps them control their movement around the human body....

New remote-controlled microrobots for medical operations (EPFL - École Polytechnique Fédérale de Lausanne)

Edit Public Technologies 22 Jul 2016
(Source ... This particular bacterium uses a flagellum for propulsion, but hides it away once inside a person's bloodstream as a survival mechanism ... The prototype robot presented in this work has a bacterium-like flagellum that enables it to swim. When heated with a laser, the flagellum wraps around the robot's body and is 'hidden' ... 'We show that both a bacterium's body and its flagellum play an important role in its movement,' said Sakar....

Research may point to new ways to deliver drugs into bacteria (University of Wisconsin-Madison)

Edit Public Technologies 16 Jun 2016
(Source. University of Wisconsin-Madison) ... When cells lose their mechanical properties, they rupture and die, and many antibiotics attack the envelope in order to mechanically destabilize bacterial cells ... E ... However, Weibel says the group also found genes 'associated with virtually every possible function in the cell.' For example, a hook-shaped protein helps connect the flagellum (the bacterium's 'propeller') to the motor that turns it....

Insights In Cellular Mechanics (Texas A&M; University)

Edit Public Technologies 05 May 2016
(Source. Texas A&M; University). Dr ... Lele's group also focuses on unraveling the fundamental principles underlying interactions in biological soft-matter to build bio-nanotechnology-based molecular machines ... Shutterstock photo ... This allows bacteria to search for nutrients and evade harmful chemicals ... 'How they recognize the substrate using the flagellum has been a long-standing question in biology with tremendous biomedical significance ... '....

Algae use their ‘tails’ to gallop and trot like quadrupeds (University of Cambridge)

Edit Public Technologies 03 May 2016
(Source. University of Cambridge). Long before there were fish swimming in the oceans, tiny microorganisms were using long slender appendages called cilia and flagella to navigate their watery habitats ... Many gaits are periodic ... Furthermore, deliberately preventing the beating of one flagellum in an alga with four flagella has zero effect on the sequence of beating in the remainder ... Reference.. Kirsty Y. Wan and Raymond E. Goldstein ... DOI....

Spotting hidden activity in cells (MIT - Massachusetts Institute of Technology)

Edit Public Technologies 28 Apr 2016
Using video microscopy, they studied, frame by frame, the oscillatory motion of the flagellum of a Chlamydomonas algae. They deconstructed the backbone of the flagellum into a series of shapes, thus creating a phase space of the states the flagellum passes through as it completes an oscillatory cycle....
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