Navigation Links
Discovery identifies elaborate G-protein network in plants
Date:4/21/2011

The most elaborate heterotrimeric G-protein network known to date in the plant kingdom has been identified by Dr. Sona Pandey, principal investigator at the Danforth Plant Science Center. The results of this research are published in the recent article, "An elaborate heterotirmeric G-protein family from soybean expands the diversity of G-protein networks," in the New Phytologist.

G-proteins are signaling proteins that direct a plant's response to various environmental signals including abiotic and biotic stresses such as drought and disease resistance. Prior to Dr. Pandey's discovery, it was assumed that plants had only one Ga protein based on previous research using Arabidopsis and rice, in contrast to 23 Ga proteins present in humans. Using soybean, Dr. Pandey's group was able to identify four Ga proteins. In addition, they demonstrated that two of these proteins can react faster than was previously assumed.

Mammals have many G-proteins. These proteins bind GTP (small molecules) and hydrolyze it to GDP. The G-proteins are active only when GTP bound. Binding is a key process because that is when the signaling can occur. Mammals' G-proteins are very quick to hydrolyze bound GTP and thus cycle fast between the GDP bound and GTP bound states. The sole Ga protein of the model plant Arabidopsis is very slow to hydrolyze bound GTP. In this research Dr. Pandey's group also demonstrated that soybean has two types of G-proteins, two that hydrolyze GTP slowly and two that work more quickly similar to those found in mammals.

"The next step will be to try and engineer plants to express altered amounts of these G-proteins to see how they affect their overall growth and can enable them to better respond to stresses that may be involved in limiting crop yield," Pandey said.


'/>"/>

Contact: Melanie Bernds
mbernds@danforthcenter.org
314-587-1647
Donald Danforth Plant Science Center
Source:Eurekalert  

Page: 1

Related biology news :

1. A chance discovery may revolutionize hydrogen production
2. A world first: The discovery of a common genetic cause of autism and epilepsy
3. Discovery of protein that alters nutrition of breast cancer cells
4. Missouri Botanical Garden makes rare discovery of plant genus
5. Discovery of a biochemical basis for broccolis cancer-fighting ability
6. Discovery of source of glycogen manufacturing errors sheds light on fatal disease
7. MU researchers believe discovery could lead to testing that displaces colonoscopies
8. Discovery of blood proteins that are red flags for ectopic pregnancy
9. Final flight of space shuttle Discovery to carry 2 payloads built by CU-Boulder
10. UCSB chemists make discovery that may lead to drug treatment possibilities for Alzheimers
11. Discovery of jumping gene cluster tangles tree of life
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Discovery identifies elaborate G-protein network in plants
(Date:5/3/2016)... May 3, 2016  Neurotechnology, a provider of ... MegaMatcher Automated Biometric Identification System (ABIS) , a ... projects. MegaMatcher ABIS can process multiple complex biometric ... combination of fingerprint, face or iris biometrics. It ... and MegaMatcher Accelerator , which have ...
(Date:4/26/2016)... 2016 Research and Markets has ... Market 2016-2020"  report to their offering.  , ,     ... The analysts forecast the global multimodal biometrics market ... the period 2016-2020.  Multimodal biometrics is ... as the healthcare, BFSI, transportation, automotive, and government ...
(Date:4/14/2016)... Israel , April 14, 2016 ... Authentication and Malware Detection, today announced the appointment of ... assumed the new role. Goldwerger,s leadership appointment ... on the heels of the deployment of its platform ... BioCatch,s behavioral biometric technology, which discerns unique cognitive and ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Apellis Pharmaceuticals, Inc. today announced positive ... its complement C3 inhibitor, APL-2. The trials were ... studies designed to assess the safety, tolerability, pharmacokinetics ... healthy adult volunteers. Forty subjects were ... dose (ranging from 45 to 1,440mg) or repeated ...
(Date:6/23/2016)... 23, 2016 On Wednesday, June 22, ... down 0.22%; the Dow Jones Industrial Average edged 0.27% lower ... 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on the following ... Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... BIND ). Learn more about these stocks by accessing ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... a new line of intelligent tools designed, tuned and optimized exclusively for Okuma ... 12–17 in Chicago. The result of a collaboration among several companies with expertise ...
(Date:6/22/2016)... DIEGO , June 22, 2016 ... that will allow them to produce up to ... from one lot within one week. These high-quality, ... time laboriously preparing cells and spend more time ... possible through a proprietary, high-volume manufacturing process that ...
Breaking Biology Technology: