Navigation Links
Putting light-harvesters on the spot
Date:10/19/2011

How the light-harvesting complexes required for photosynthesis get to their site of action in the plant cell is reported by RUB biologists in the Journal of Biological Chemistry. The team led by Prof. Dr. Danja Schnemann (RUB working group on the molecular biology of plant organelles) has demonstrated for the first time that a membrane protein interacts with a single soluble protein to anchor the subunits of the light-harvesting complexes in the membrane. The researchers propose a new model that explains the integration into the membrane through the formation of a pore.

Light harvesting

Photosynthesis occurs in special areas of the plant cells, the chloroplasts, whereby the energy-converting process takes place in specific protein complexes (photosystems). To capture the light energy and efficiently transmit it to the photosystems, light-harvesting complexes are required which work like antenna. "The proteins of the light-harvesting complexes are the most abundant membrane proteins on Earth" says Dr. Beatrix Dnschede of the RUB. "There is a special transport mechanism that conveys them into the chloroplasts and incorporates them into the photosynthetic membrane". Exactly how the various transport proteins interact with each other had, up to now, been unclear.

Interaction between only two proteins

Several soluble proteins and the membrane protein Alb3 that channels the proteins of the light-harvesting complexes into the membrane are involved in the transport. Bochum's biologists examined intact, isolated plant cells and found that, for this purpose, Alb3 interacts with only a single soluble transport protein (cpSRP43). They confirmed this result in a second experiment with artificial membrane systems. "In a further experiment, we identified the region in Alb3 to which the soluble protein cpSRP43 binds" explains the RUB biologist Dr. Thomas Bals. "It turned out that the binding site is partly within the m
'/>"/>

Contact: Dr. Danja Schuenemann
danja.schuenemann@rub.de
49-234-322-4293
Ruhr-University Bochum
Source:Eurekalert

Page: 1 2

Related biology news :

1. Putting a price on sea fish
2. Putting trees on farms fundamental to future agricultural development
3. Putting the dead to work for conservation biology
4. Putting the dead to work
5. Putting a bulls-eye on the flu: Paper details influenzas structure for future drug targeting
6. Putting on the pounds after weight loss? Hit the gym to maintain health gains
7. By putting a ring on it, microparticles can be captured
8. Putting bacterial antibiotic resistance into reverse
9. Thrill-seeking holiday-makers are putting dolphins at risk
10. Thrill-seeking holidaymakers are putting dolphins at risk
11. Americans want Uncle Sams help putting healthy foods on their dinner table
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... data shows Africa,s Congo rainforest, the second-largest tropical rainforest ... greenness over the past decade. , The study, led ... of New York, shows between 2000 and 2012 the ... intensified. The research, published Wednesday in Nature , ... explore the effects of long-term drought on the Congo ...
(Date:4/23/2014)... of Public Health-Bloomington has bolstered the link between red ... association between heme iron, found only in meat, and ... that heme iron consumption increased the risk for coronary ... found between nonheme iron, which is in plant and ... study was published online ahead of print in the ...
(Date:4/23/2014)... Valley, NY. (Apr. 23 2014) A ... neural stem cells (hNSCs) into the brains of ... after 22 and 24 months found that the ... and did not cause tumors. , The study ... Cell Transplantation but is currently freely ...
Breaking Biology News(10 mins):NASA satellites show drought may take toll on Congo rainforest 2NASA satellites show drought may take toll on Congo rainforest 3Study: Iron consumption can increase risk for heart disease 2Study finds long-term survival of human neural stem cells transplanted into primate brain 2
... In new research that could have implications for improving ... interactions between individual sperm and eggs in red abalone, ... physical models of these interactions. They are the first ... the natural habitat of the abalone in the laboratory, ...
... change enhances tree growth in tropical forests, the resulting increase ... of stored soil carbon. The research was led ... the University of Cambridge, UK. The results are published online ... Climate Change . The researchers used results from a ...
... July 6, 2011 Reportlinker.com announces that a ... catalogue: Biobanking: Technologies and Global ... REPORT HIGHLIGHTS ... overview of biobanks by types: Population, Disease, and ...
Cached Biology News:UCLA life scientists' study of abalone yields new insights into sexual reproduction 2UCLA life scientists' study of abalone yields new insights into sexual reproduction 3UCLA life scientists' study of abalone yields new insights into sexual reproduction 4Increased tropical forest growth could release carbon from the soil 2Biobanking: Technologies and Global Markets 2Biobanking: Technologies and Global Markets 3Biobanking: Technologies and Global Markets 4Biobanking: Technologies and Global Markets 5Biobanking: Technologies and Global Markets 6Biobanking: Technologies and Global Markets 7Biobanking: Technologies and Global Markets 8Biobanking: Technologies and Global Markets 9Biobanking: Technologies and Global Markets 10Biobanking: Technologies and Global Markets 11Biobanking: Technologies and Global Markets 12Biobanking: Technologies and Global Markets 13
(Date:1/15/2014)... DTS Language Services, Inc . is pleased to announce ... organizations who need document translations. Clients will now have ... in advance with a selection of nearly 50 life science ... critical factor in clinical and scientific fields, and decrease the ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of Notched ... tinnitus. Patients listen to sound therapy that is tailor-made ... weeks to months, their tinnitus volume decreases. , AudioNotch has ... and Notched White Noise. Now, AudioNotch is pleased to announce ...
(Date:1/14/2014)... Washington, DC (PRWEB) January 14, 2014 ... session for Thursday, January 23, 2014 at 2pm EST ... Actionable Knowledge.” The topic focuses on how technology can ... mission critical decisions for government agencies. The online webinar ...
(Date:1/14/2014)... , Jan. 14, 2014 As pet owners drew up ... many of them wrote: "Take better care of my furry companion." ... designer clothes and top-brand carrying cases to take the little canine ... might also feel compelled to buy some pricey toys at the ...
Breaking Biology Technology:DTS Improves Efficiency for Life Science Document Translations 2Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2
... SANTA CLARA, Calif., June 16, 2011 NewCardio, ... provider, announced today that two of its recent ... their presentations at the 33rd Annual International Conference ... Society conference.   The two papers: ...
... /PRNewswire-Asia/ -- ShangPharma Corporation (NYSE: SHP ... pharmaceutical and biotechnology research and development outsourcing company, ... China,s Ministry of Commerce as one of the ... names of the top ten companies were announced ...
... and your mind through your senses of sound and sight. ... if you could smell or taste the cheesy slices of ... it possible? Would audiences enjoy the experience? Would advertisers jump ... These questions formed the basis of a two year ...
Cached Biology Technology:NewCardio Selected to Present at 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2NewCardio Selected to Present at 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society 3NewCardio Selected to Present at 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society 4ShangPharma Corporation Named a Top Ten Chinese Outsourcing Enterprise 2Coming to TV screens of the future: A sense of smell 2Coming to TV screens of the future: A sense of smell 3
The Discovery Series PDQuest 2-D analysis software is used for imaging, analyzing, and databasing two-dimensional electrophoretic gels. The 10-user network license entitles ten users to access data f...
Mouse monoclonal antibody raised against a partial recombinant NEK2. NCBI Entrez Gene ID = NEK2...
... Nikon's Digital Sight DS-L2 imaging controller is ... Controller DS-L1, and allows users to comfortably ... generation DS-L2 controller features an 8.4 inch ... a variety of Nikon cameras including the ...
... a dedicated imaging system for detection of ... to pixel size. Equipped with an extreme ... in animals or plants in tumor research, ... or Western blots. NightOWL is the only ...
Biology Products: