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tag dna evidence cell molecular biology

DNA molecule.
Finding DNA Tags in AAV Stacks
Mariella Bodemeier Loayza Careaga, PhD | Mar 7, 2024 | 8 min read
Ten years ago, scientists put DNA barcodes in AAV vectors, creating an approach that simplified, expedited, and streamlined AAV screening. 
Microfluidics: Biology’s Liquid Revolution
Laura Tran, PhD | Feb 26, 2024 | 8 min read
Microfluidic systems redefined biology by providing platforms that handle small fluid volumes, catalyzing advancements in cellular and molecular studies.
Green and red fluorescent proteins in a zebrafish outline the animal’s vasculature in red and lymphatic system in green in a fluorescent image. Where the two overlap along the bottom of the animal is yellow.
Serendipity, Happenstance, and Luck: The Making of a Molecular Tool
Shelby Bradford, PhD | Dec 4, 2023 | 10+ min read
The common fluorescent marker GFP traveled a long road to take its popular place in molecular biology today.
Molecular Biology
The Scientist Staff | Sep 1, 1991 | 1 min read
S. Ghosh, D. Baltimore, "Activation in vitro of NF-kB by phosphorylation of its inhibitor IkB," Nature, 344:678-82, 1990. Sankar Ghosh (Whitehead Institute for Biomedical Research, Cambridge, Mass.): "This paper brings together two areas of rapidly moving research: the role of protein phosphorylation and control of transcriptional regulation. The inhibitor IkB not only keeps the transcription factor NF-kB in the cytoplasm--away from DNA--but also directly prevents it from binding to DNA. By sh
Molecular Biology
The Scientist Staff | Feb 3, 1991 | 3 min read
T. Hai, F. Liu, W.J. Coukos, M.R. Green, "Transcription factor ATF cDNA clones: an extensive family of leucine zipper proteins able to selectively form DNA-binding heterodimers," Genes and Development, 3, 2083-90, December 1989. Michael R. Green (University of Massachusetts Medical Center, Worcester, Mass.): "I suspect that this paper may have attracted more than the usual attention because it is relevant to several research areas, and some of the results were unexpected. We and others had bee
A close up of several modular puzzle pieces.
Making Connections: Click Chemistry and Bioorthogonal Chemistry
Deanna MacNeil, PhD | Feb 13, 2024 | 5 min read
Simple, quick, and modular reactions allow researchers to create useful molecular structures from a wide range of substrates.
Image of methylated DNA
Stress Increases Biological Age, But Recovery Can Revert It
Alejandra Manjarrez, PhD | Apr 21, 2023 | 2 min read
A new study relying on DNA methylation clocks suggests that the biological age of mouse and human cells can fluctuate in response to stressful events.
A person moving the hands of a vintage clock backwards.
Synthetic Circuits Reveal the Key to Rewinding the Cellular Clock
Charlene Lancaster, PhD | Mar 12, 2024 | 4 min read
Using a circuit-based system, scientists determined the ideal transcription factor levels to promote the successful reprogramming of fibroblasts into induced pluripotent stem cells.
Molecular Biology
The Scientist Staff | Apr 4, 1993 | 2 min read
S. Shimasaki, L. Gao, M. Shimonaka, N.Ling, "Isolation and molecular cloning of insulin-like growth factor-binding protein- 6," Molecular Endocrinology, 5:938, 1991. Shunichi Shimasaki (Whittier Institute for Diabetes and Endocrinology, La Jolla, Calif.): "There are two types of insulin-like growth factors: IGF-I and IGF-II, which act on a wide variety of target cells to regulate growth and cytodifferentiation. The IGF ligands interact with plasma membrane receptors, and the interactions are
Molecular Biology
The Scientist Staff | Jan 20, 1991 | 3 min read
C.K. Glass, S.M. Lipkin, O.V. Devary, M.G. Rosenfeld, "Positive and negative regulation of gene transcription by a retinoic acid-thyroid hormone receptor heterodimer," Cell, 59, 697-708, 17 November 1989. Christopher K. Glass (School of Medicine, University of California, San Diego, La Jolla): "Retinoic acid receptors appear to exert profound effects on vertebrate development by binding to target genes and altering the rates at which they are transcribed in response to retinoic acid. Because t

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