Navigation Links
Researchers dig through the gene bank to uncover the roots of the evolutionary tree
Date:7/26/2012

ng the evolution of all species.

Ribosomal proteins in the same family twist into the same shape. The sequence of amino acids in a protein determines what 3D structure it folds into and Duax and his colleagues identified patterns that marked specific types of turns. They used these marker sequences to identify and almost perfectly align the proteins, similar to the way you could use five points to identify the shape of a star and align its orientation to match other star shapes.

Structurally aligning the proteins allowed the researchers to easily spot small differences that indicate organisms belong on different branches of the evolutionary tree. For example, a single amino acid difference in one ribosomal protein separates bacteria with one cell membrane from those with two.

At the ACA meeting, the researchers will present the results from the analysis of two different ribosomal protein families, called S19 and S13. Duax will present the analysis of protein S19, while high school student Alexander Merriman will present analysis of protein S13. Merriman joined Duax's lab through a scientific mentorship program designed to give teenagers hands-on experience with cutting-edge research. "They are enthusiastic researchers and do great work," Duax says of the students he welcomes into his lab each Friday.

Both analyses point to Actinobacteria as the last universal common ancestor. This agrees with previous work done by the group on proteins named S9 and S12.

The researchers will continue to search for more evidence to add to their developing picture of the evolutionary tree. The group plans to analyze additional proteins, as well as DNA and RNA. "We are applying a systematic approach to make sense of a sometimes messy gene bank," says Duax.


'/>"/>
Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
3. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
4. UNH researchers find African farmers need better climate change data to improve farming practices
5. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
6. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
7. Researchers print live cells with a standard inkjet printer
8. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
9. Researchers reveal how a single gene mutation leads to uncontrolled obesity
10. Researchers discover novel therapy for Crohns disease
11. New paper by Notre Dame researchers describes method for cleaning up nuclear waste
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... found clownfish larvae can swim up to 400 kilometres in ... cope with environmental change. , Clownfish spend their entire adult ... babies they must wander the open ocean, says study co-author, ... Coral Reef Studies (Coral CoE) at James Cook University. , ... now we,ve been given a rare glimpse into how far ...
(Date:9/17/2014)... UCLA atmospheric scientists were instrumental in the creation of ... tool to classify the fire threat potential of the ... a spark into an inferno. The index was introduced ... with UCLA and San Diego Gas and Electric. , ... to "extreme" that will be used to help fire ...
(Date:9/17/2014)... EC-FP5 four-year project, delivering its first release in 2004. ... in several EC projects, as a part of the ... BON), to increase the general awareness of the work ... dissemination of the Fauna Europaea results, the ... e-Publishing tools to prepare data papers for all 56 ...
Breaking Biology News(10 mins):Nemo's epic journey to find a new home 2UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2Contributions on Fauna Europaea: Data papers as innovative model on expert involvement 2
... Leader, in One-Time Passwords for Highest Ability to Execute and ... RSA, The Security Division of EMC (NYSE: EMC ... An Overview and Competitive Analysis for the One Time ... in one-time password (OTP) technology for strong authentication based upon ...
... LA JOLLA, CA, June 19, 2009Researchers at The ... and Ohio State University have used a very sensitive ... to exist in one "natural" three-dimensional structure (shape), can ... the protein,s chemical environment. One folded form is active ...
... of nanomaterials with enhanced performance characteristics for use in ... people coming into direct contact with these materials. ... the market including clothes, skin lotions and cleaning ... and therapeutic nanocarriers have been designed for targeted drug ...
Cached Biology News:RSA Designated as the Leader in One-Time Password Market by Frost & Sullivan 2RSA Designated as the Leader in One-Time Password Market by Frost & Sullivan 3RSA Designated as the Leader in One-Time Password Market by Frost & Sullivan 4Researchers observe single protein dimers wavering between two symmetrically opposed structures 2Researchers observe single protein dimers wavering between two symmetrically opposed structures 3Researchers observe single protein dimers wavering between two symmetrically opposed structures 4Research explores interactions between nanomaterials, biological systems 2Research explores interactions between nanomaterials, biological systems 3Research explores interactions between nanomaterials, biological systems 4
(Date:9/20/2014)... HealthTronics, Inc. , a ... products and services, has signed a distribution agreement ... Corporation for its high precision laser technology. ... invasive, mobile, surgical technology—offering more choices for healthcare ... HealthTronics will make available Clinicon’s FDA-cleared SureLase™ CO2 ...
(Date:9/19/2014)... rather than electricity, to move data would consume ... a growing concern as chips, transistor counts rise. ... circuits light emitters, modulators, and detectors ... light source for optical chips is molybdenum disulfide ... as a single, atom-thick layer. Other experimental on-chip ...
(Date:9/19/2014)... , Sept. 19, 2014 Pfenex Inc. (NYSE ... development of high-value and difficult to manufacture proteins including ... at the 21 st Annual NewsMakers in the ... . Bertrand Liang , chief executive officer of ... programs and business strategy on Friday, September 26, 2014 ...
(Date:9/19/2014)... ROCKLAND, Massachusetts , September 19, 2014 ... with the 53rd European Society for Paediatric Endocrinology (ESPE) ... advancement of science and medical research in the field ... of Merck KGaA, Darmstadt, Germany , ... Growth Innovation (GGI) for 2014. The awards were announced ...
Breaking Biology Technology:HealthTronics Announces Distribution Agreement with Clinicon-Laser Surgical Device Expands Minimally Invasive, Mobile Technology Portfolio 2HealthTronics Announces Distribution Agreement with Clinicon-Laser Surgical Device Expands Minimally Invasive, Mobile Technology Portfolio 3Toward optical chips 2Toward optical chips 3Pfenex to Present at Upcoming Industry Conference on September 26 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3
... (NPWH) Encourages Women to Get Informed and Ask ... growing awareness of HPV,(human papillomavirus), the primary cause of ... of Nurse Practitioners in Women,s,Health (NPWH) found that many ... prevent the disease. Despite the fact that there is ...
... Inc.,(Nasdaq: OSTE ), a leader in the emerging ... total revenue for the year,ending December 31, 2007 increased ... year ended December 31, 2006. Revenue from "core" product,lines, ... year,2007, an increase of 15% over core product revenue ...
... still flawed government-wide plan for nanotechnology risk research ... Federally-funded studies essential to managing possible risks from ... top-down strategy tied to projected commercialization, expected human ... , The National Nanotechnology Initiatives (NNI) ...
Cached Biology Technology:Survey Shows Most Women Can't Separate Fact From Fiction When It Comes to Cervical Cancer Prevention 2Survey Shows Most Women Can't Separate Fact From Fiction When It Comes to Cervical Cancer Prevention 3Survey Shows Most Women Can't Separate Fact From Fiction When It Comes to Cervical Cancer Prevention 4Osteotech Reports 2007 Full Year and Fourth Quarter Financial Results; Full Year Revenue of $104.3 Million Exceeds $100 Million Milestone; Diluted Earnings Per Share Was $.15 in 2007 2Osteotech Reports 2007 Full Year and Fourth Quarter Financial Results; Full Year Revenue of $104.3 Million Exceeds $100 Million Milestone; Diluted Earnings Per Share Was $.15 in 2007 3Osteotech Reports 2007 Full Year and Fourth Quarter Financial Results; Full Year Revenue of $104.3 Million Exceeds $100 Million Milestone; Diluted Earnings Per Share Was $.15 in 2007 4Osteotech Reports 2007 Full Year and Fourth Quarter Financial Results; Full Year Revenue of $104.3 Million Exceeds $100 Million Milestone; Diluted Earnings Per Share Was $.15 in 2007 5Osteotech Reports 2007 Full Year and Fourth Quarter Financial Results; Full Year Revenue of $104.3 Million Exceeds $100 Million Milestone; Diluted Earnings Per Share Was $.15 in 2007 6Federal nanotech risk research plan still comes up short 2
... functional protein microarray is the first microarray ... interactions on a proteome scale. The Yeast ... frames (ORFs) expressed as 5'-GST fusions, purified ... inch x 3 inch nitrocellulose-coated slide. With ...
... Useful for the mechanical harvesting of cells ... ensures even contact with the growth surface ... 75cm flasks • Individually wrapped • Sterilized ... This CLS number is a new product ...
... description: Designed for use with dishes and ... is a new product number, created to ... no availability yet, please order under the ... service for assistance. Comp Dim: blade L ...
... combine the proven features of the pET, ... provides all of the benefits and versatility ... backbone. The pTriEx vectors have been extensively ... in all three expression systems. In each ...
Biology Products: