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Molecular biology

Molecular biology

Branch of biology that deals with the molecular basis of biological activity

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Science X staff
April 12, 2021
phys.org
Jaakko Patrakka and his research group at the Department of Laboratory Medicine have together with Professor Rickard Sandberg's group at the Department of Cell and Molecular Biology got a publication accepted in Nature Communications about single cell sequencing unravels molecular identity of rare renal cell types.
Liu, C., Shen, L., Xiao, Y., Vyshedsky, D., Peng, C., Sun, X., Liu, Z., Cheng, L., Zhang, H., Han, Z., Chai, J., Wu, H.-M., Cheung, A. Y., Li, C.
April 9, 2021
Science
When a pollen grain lands on a receptive flower's pistil, a complex dance leading to sexual reproduction begins. Liu et al. show some of the early steps that help to distinguish a compatible pollen grain from a random piece of dust. Normally, a stigmatic gatekeeper, the ANJEA-FERONIA receptor kinase complex, perceives signaling peptides produced by the stigma that drive the production of reactive oxygen species at the stigma papillae. Upon pollination, POLLEN COAT PROTEIN B-class peptides compete with those stigmatic peptides for binding to the stigmatic receptor kinase complex. The subsequent decline of stigmatic reactive oxygen species production allows hydration and opens the gates to pollen germination. Science , this issue p. [171][1] Sexual reproduction in angiosperms relies on precise communications between the pollen and pistil. The molecular mechanisms underlying these communications remain elusive. We established that in Arabidopsis , a stigmatic gatekeeper, the ANJEA-FERONIA (ANJ-FER) receptor kinase complex, perceives the RAPID ALKALINIZATION FACTOR peptides RALF23 and RALF33 to induce reactive oxygen species (ROS) production in the stigma papillae, whereas pollination reduces stigmatic ROS, allowing pollen hydration. Upon pollination, the POLLEN COAT PROTEIN B-class peptides (PCP-Bs) compete with RALF23/33 for binding to the ANJ-FER complex, leading to a decline of stigmatic ROS that facilitates pollen hydration. Our results elucidate a molecular gating mechanism in which distinct peptide classes from pollen compete with stigma peptides for interaction with a stigmatic receptor kinase complex, allowing the pollen to hydrate and germinate. [1]: /lookup/doi/10.1126/science.abc6107
March 4, 2021
The Economic Times
The study was carried out by the Centre for Cellular and Molecular Biology, the National Institute of Nutrition (NIN) and vaccine innovator Bharat Biotech International (BBIL) on seroprevalence of antibodies to SARS-COV-2 in around 9,000 persons in Hyderabad.
New York Genome Center
December 9, 2020
www.prnewswire.com:443
/PRNewswire/ -- The New York Genome Center (NYGC) announced today that it has created a Scientific Advisory Board (SAB) to provide counsel and support for the...
Science X staff
November 30, 2020
phys.org
A research group from the Department of Biochemistry and Molecular Biology of the University of Valencia (UV), in coordination with the National Center for Biotechnology (CNB) of the CSIC, has studied the role of the interactions within the membrane of proteins of viral families Herpesviridae and Poxviridae in the control of programmed cell death. The work, published in Nature Communications, could have implications for the development of treatments for viral infection, as well as the prevention of cancers associated with them.
BioSpace
June 9, 2020
BioSpace
AXIM® Biotechnologies, Inc. (OTCQB: AXIM) ("AXIM® Biotech," "AXIM" or "the Company"), an international healthcare solutions company targeting oncological research, announced today it has appointed Dr. Alim Seit-Nebi as the Chief Technology Officer ("CTO") of its subsidiary Sapphire Biotech, Inc. ("Sapphire").
Science X staff
October 2, 2019
phys.org
Parasitic flukes have been a leading source of food-borne infections, sparking fear and wreaking havoc on human public health, and contributed to more than 3 billion in animal agricultural losses per year in the U.S. alone.
KENNETH CHANG
November 30, 2018
nytimes.com
Born in Lithuania, raised in South Africa and working in Britain, he made large strides in understanding the structure of proteins, DNA and more.
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