HOME >> BIOLOGY >> NEWS
Getting one's protein in a bunch -- When quality control fails in cells

COLUMBUS, Ohio -- Over time, a relatively minor mistake in protein production at the cellular level may lead to serious neurological diseases.

But exactly how the cell avoids such mistakes has remained unclear until now. Researchers at Ohio State University found the mechanism that prevents such errors, and explain their findings in the Proceedings of the National Academy of Sciences.

"Cells normally make a certain amount of mutant proteins, and use a series of degradation and recycling steps to get rid of them," said Michael Ibba, the study's lead author and an associate professor of microbiology at Ohio State University.

"But sometimes the cell produces more mutations than it can handle. That buildup can overwhelm the cell's ability to eliminate these mutants."

Left unchecked, these errors result in the buildup of faulty proteins within the cell. This buildup happens during translation, a process that cells use to make usable proteins. Over time, the researchers believe that the accumulated proteins might cause neurological diseases, such as Alzheimer's and Parkinson's.

Scientists know that cells use many enzymes to carry out translation properly. The enzymes that make the building blocks for translation carefully check for errors before proteins are made. If they find an error, they instruct the cell to destroy these building blocks, which are called aminoacyl-tRNAs. Cells break down these aminoacyl-tRNAs through a process called hydrolysis, in which one compound is split into other compounds in a reaction that uses water.

Ibba and his team work with a special family of enzymes called the aminoacyl-tRNA synthetases. These enzymes select the amino acids inside the cell that are used for producing proteins.

Ibba and his colleagues used a specific synthetase, phenylalanyl-tRNA synthetase, to investigate what happens when the wrong amino acid is selected. They carried out their experiments in a
'"/>

Contact: Michael Ibba
Ibba.1@osu.edu
614-292-2120
Ohio State University
16-Jan-2007


Page: 1 2

Related biology news :

1. Getting to the root of plant growth
2. Getting to the core of an emergent public health threat
3. Getting dirty may lift your mood
4. Getting on your nerves ... and repairing them
5. Getting to the bottom of memory
6. Getting to the heart of the heart
7. Getting America really ready
8. Getting ahead of cancer: SPECT/Spiral CT technology enhances bone scanning, earlier diagnosis
9. Getting ACL tears to heal themselves
10. Getting an evolutionary handle on life after reproduction
11. Getting old? Slowing down? Blame inefficient mitochondria

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Getting one protein bunch When quality control fails cells

(Date:7/7/2015)... , July 7, 2015  Based on ... Frost & Sullivan recognizes Credence ID, LLC with ... Entrepreneurial Company of the Year Award. Credence ID ... aid in its mission of offering enrollment and ... globally. As Credence ID was formed by experts ...
(Date:7/2/2015)... , June 25, 2015 ... the addition of the "Natural Language Processing ... (Recognition, IVR, OCR, Pattern & Image Recognition) - ... offering. The key vendors occupying the ... IBM Corporation, Microsoft Corporation, NetBase Solutions, SAS Institute ...
(Date:7/2/2015)... 2, 2015 Fingerprint Cards has received ... and FPC1155 from the distributor World Peace Industrial Group (WPI), ... in Asia . Deliveries are planned to ... be used by smartphone manufacturers in Asia ... the communicated revenue guidance of approximately 2,200 MSEK for 2015. ...
Breaking Biology News(10 mins):Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2
(Date:7/30/2015)... HIGHLIGHTS:Q2 2015 Results (all changes ... Reported sales were $697 million compared to $701 million ... by 8%, and changes in foreign currency exchange rates ... 1%. , By business unit, organic sales growth ... in SAFC Commercial. , Reported diluted EPS was ...
(Date:7/29/2015)... July 30, 2015 Sanofi, ... publie ses résultats pour le premier semestre 2015. ... les résultats. Visionner l,interview vidéo et ... Au sommaire de l,interview :  ... Moteurs de croissance - Diabète ...
(Date:7/29/2015)...  HealthSouth Corporation (NYSE: HLS ), one ... services, offering both facility-based and home-based post-acute services, ... second quarter ended June 30, 2015. ... growth in both segments and an 11.0% increase ... and Chief Executive Officer of HealthSouth. "While reported ...
(Date:7/29/2015)... 29, 2015  AmnioChor Inc., an early stage biotech ... pleased to announce that the Musculoskeletal Transplant Foundation of ... invest in their seed round of development of the ... capabilities. AmnioChor,s technology allows cryopreservation of ... stem cells living within those tissues. Amnion is a ...
Breaking Biology Technology:Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 2Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 4Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 6Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 7Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 8Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 9Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 10Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 11Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 12Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 13Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 14Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 15Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 16Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 17Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 18Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 19Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 20HealthSouth Reports Results for Second Quarter 2015 2HealthSouth Reports Results for Second Quarter 2015 3HealthSouth Reports Results for Second Quarter 2015 4HealthSouth Reports Results for Second Quarter 2015 5HealthSouth Reports Results for Second Quarter 2015 6HealthSouth Reports Results for Second Quarter 2015 7HealthSouth Reports Results for Second Quarter 2015 8HealthSouth Reports Results for Second Quarter 2015 9HealthSouth Reports Results for Second Quarter 2015 10HealthSouth Reports Results for Second Quarter 2015 11HealthSouth Reports Results for Second Quarter 2015 12HealthSouth Reports Results for Second Quarter 2015 13HealthSouth Reports Results for Second Quarter 2015 14HealthSouth Reports Results for Second Quarter 2015 15HealthSouth Reports Results for Second Quarter 2015 16HealthSouth Reports Results for Second Quarter 2015 17
Cached News: