HOME >> BIOLOGY >> NEWS
Ancient T. rex and mastodon protein fragments discovered, sequenced

Scientists have confirmed the existence of protein in soft tissue recovered from the fossil bones of a 68 million-year-old Tyrannosaurus rex (T. rex) and a half-million-year-old mastodon.

Their results may change the way people think about fossil preservation and present a new method for studying diseases in which identification of proteins is important, such as cancer.

When an animal dies, protein immediately begins to degrade and, in the case of fossils, is slowly replaced by mineral. This substitution process was thought to be complete by 1 million years. Researchers at North Carolina State University (NCSU) and Harvard Medical School now know otherwise.

The researchers' findings appear as companion papers in this week's issue of the journal Science.

"Not only was protein detectably present in these fossils, the preserved material was in good enough condition that it could be identified," said Paul Filmer, program director in the National Science Foundation (NSF) Division of Earth Sciences, which funded the research. "We now know much more about what conditions proteins can survive in. It turns out that some proteins can survive for very long time periods, far longer than anyone predicted."

Mary Schweitzer of NCSU and the North Carolina Museum of Natural Sciences discovered soft tissue in the leg bone of a T. rex and other fossils recovered from the Hell Creek sediment formation in Montana.

After her chemical and molecular analyses of the tissue indicated that original protein fragments might be preserved, she turned to colleagues John Asara and Lewis Cantley of Harvard Medical School, to see if they could confirm her suspicions by finding the amino acid used to make collagen, a fibrous protein found in bone.

Bone is a composite material, consisting of both protein and mineral. In modern bones, when minerals are removed, a collagen matrix--fibrous, resilient material that gives the bones str
'"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
12-Apr-2007


Page: 1 2 3

Related biology news :

1. Ancient retrovirus sheds light on modern pandemic
2. Ancient Etruscans were immigrants from Anatolia, or what is now Turkey
3. Ancient DNA traces the woolly mammoths disappearance
4. Ancient amphibians evolved a bite before migrating to dry land
5. Ancient coral reef tells the history of Kenyas soil erosion
6. Ancient genes used to produce salt-tolerant wheat
7. Ancient climate change may portend toasty future
8. Ancient ape ruled out of mans ancestral line
9. Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex
10. Ancient birds flew on all-fours
11. Ancient raptors likely feasted on early man, study suggests

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/21/2020)... ... August 18, 2020 , ... ... today announced that the U.S. Food and Drug Administration (FDA) has approved the ... SBI-101, for the treatment of severe COVID-19. Approval of this IND allows Sentien ...
(Date:8/12/2020)... ... 12, 2020 , ... Mosio recently announced its newly updated ... agencies of all sizes. With a focus on tracking symptoms and monitoring outbreaks ... care, Mosio helps public health departments automate communications and provide more personalized care ...
(Date:7/31/2020)... ... 2020 , ... BioFactura, Inc. today announced a $1 million ... & Technology Office—Chemical and Biological Defense (JSTO-CBD) of the Department of Defense (DoD). ... efficient mammalian cell culture-based bioprocess suitable to meet surge requirement needs for rapid ...
Breaking Biology News(10 mins):
(Date:7/10/2020)... ... July 09, 2020 , ... Sentien ... announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as its Chief Medical ... development of Sentien’s lead product, SBI-101. Dr. Nissenson serves as an Emeritus ...
(Date:7/1/2020)... ... June 29, 2020 , ... MedShift , ... in 2020, despite many obstacles created as a result of COVID-19. As a ... its partnered medical practices and medical manufacturers by expanding access to device offerings, ...
(Date:6/28/2020)... Calif. (PRWEB) , ... June 25, 2020 , ... The ... the launch of Safe Space™ for businesses of all types to ensure cleanliness, distancing ... LiDAR. , A Safe Space™ enabled business will provide a health performance ...
(Date:6/28/2020)... ... June 26, 2020 , ... The Security Industry Association ... strong opposition to the recently introduced bicameral Facial Recognition and Biometric Technology ... federal use of nearly all biometric and related image analytics technologies, incorrectly labeling ...
Breaking Biology Technology:
Cached News: