Welcome To Website IAS

Hot news
Achievement

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  5
 Total visitors :  6318761

CRISPR-Cas System with On-off Switch Cuts Proteins Instead of DNA
Friday, 2022/09/16 | 08:18:41

Figure: Cryo-electron microscopy image of the discovered CRISPR-Cas cutting protein. Photo Source: TU Delft

 

Researchers from Delft University of Technology (TU Delft) led by Stan Brouns have discovered a CRISPR-Cas system that cuts proteins instead of DNA. The discovery opens the door to the development of a range of biotechnological and medical applications, such as sensing RNA molecules in pathogens.

 

Brouns explains that when CRISPR-Cas was discovered, it was observed to cut viral DNA in precise locations. “But the protein had more surprises in store: we later discovered that some variants of CRISPR-Cas can also cut viral RNA. Now CRISPR-Cas goes one step further cutting proteins with high precision.” Proteins keep the bacterium alive. If important proteins are destroyed when the CRISPR-Cas system cuts them, this can cause the bacterium to go dormant, and unnecessary dormancy can be harmful.

 

Ph.D. student Sam van Beljouw, lead author of the article published in Science said they have now discovered that the cutting protein is only activated if it recognizes the RNA of the virus. "Bacteria therefore only activate the immune system if the virus is present in the cell. We are now trying to find out exactly how the cut proteins cause dormancy.”

 

For more details, read the article on the TU Delft website.

https://www.isaaa.org/kc/cropbiotechupdate/ged/article/default.asp?ID=19715

 

Back      Print      View: 61

[ Other News ]___________________________________________________
  • Egypt Holds Workshop on New Biotech Applications
  • UN Agencies Urge Transformation of Food Systems
  • Taiwan strongly supports management of brown planthopper—a major threat to rice production
  • IRRI Director General enjoins ASEAN states to invest in science for global food security
  • Rabies: Educate, vaccinate and eliminate
  • “As a wife I will help, manage, and love”: The value of qualitative research in understanding land tenure and gender in Ghana
  • CIP Director General Wells Reflects on CIP’s 45th Anniversary
  • Setting the record straight on oil palm and peat in SE Asia
  • Why insect pests love monocultures, and how plant diversity could change that
  • Researchers Modify Yeast to Show How Plants Respond to Auxin
  • GM Maize MIR162 Harvested in Large Scale Field Trial in Vinh Phuc, Vietnam
  • Conference Tackles Legal Obligations and Compensation on Biosafety Regulations in Vietnam
  • Iloilo Stakeholders Informed about New Biosafety Regulations in PH
  • Global wheat and rice harvests poised to set new record
  • GM Maize Harvested in Vietnam Field Trial Sites
  • New label for mountain products puts premium on biological and cultural diversity
  • The Nobel Prize in Physiology or Medicine 2016
  • Shalabh Dixit: The link between rice genes and rice farmers
  • People need affordable food, but prices must provide decent livelihoods for small-scale family farmers
  • GM Seeds Market Growth to Increase through 2020 Due to Rise in Biofuels Use

 

Designed & Powered by WEBSO CO.,LTD