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Related Concept Videos

Biosynthesis of Nucleic Acids01:28

Biosynthesis of Nucleic Acids

Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
PCR01:32

PCR

Overview
Allosteric Proteins-ATCase01:19

Allosteric Proteins-ATCase

Binding sites linkages can regulate a protein's function.  For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to  N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis pathway,...
PCR - Polymerase Chain Reaction01:32

PCR - Polymerase Chain Reaction

Overview
Rab Cascades01:25

Rab Cascades

Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy01:26

Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy

Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in critically...

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Nuclear cardiology, patient care, and the humanities.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology·2019
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Dobutamine stress test and beta-agonist - a potential concern for nuclear cardiology testing: a case report.

Cases journal·2009
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Cardiac imaging and cardiac resynchronization therapy: time to get in phase.

JACC. Cardiovascular imaging·2009
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Fluorodeoxyglucose and calcium uptake in the vascular wall: clinically relevant or sugar-coated pill?

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology·2006
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Nuclear cardiology: present and future.

Current problems in cardiology·2006
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Alphavbeta3-targeted detection of arteriopathy in transplanted human coronary arteries: an autoradiographic study.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2005
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Related Experiment Video

Updated: Jun 26, 2026

Overexpression and Purification of Human Cis-prenyltransferase in Escherichia coli
07:35

Overexpression and Purification of Human Cis-prenyltransferase in Escherichia coli

Published on: August 3, 2017

Purim CPR

Barry L Zaret1, Myrna Zaret

  • 1Department of Internal Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT 06520-8017, USA. barry.zaret@yale.edu

Psychosomatic Medicine
|January 7, 2009
PubMed
Summary

No abstract available in PubMed .

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