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Related Concept Videos

Roles of Electrolytes: Calcium and Phosphate01:27

Roles of Electrolytes: Calcium and Phosphate

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Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily...
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Phosphorylation01:02

Phosphorylation

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The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
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Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

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Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
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Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

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The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
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Introduction to Electrolytes01:33

Introduction to Electrolytes

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In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
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Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Assaying for Inorganic Polyphosphate in Bacteria
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Assaying for Inorganic Polyphosphate in Bacteria

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[Pyrophosphate in medicine].

Adrian Goldman, Gustav Boije af Gennis, Henri Xhaard

    Duodecim; Laaketieteellinen Aikakauskirja
    |August 4, 2016
    PubMed
    Summary

    Pyrophosphatases are essential enzymes for all life, breaking down pyrophosphate. Membrane-bound pyrophosphatases in parasites are promising drug targets for diseases like malaria.

    Area of Science:

    • Biochemistry
    • Molecular Biology
    • Enzymology

    Context:

    • Pyrophosphatases are vital hydrolases in all organisms, converting inorganic pyrophosphate to phosphate, essential for DNA, RNA, and protein synthesis.
    • Human pyrophosphatase metabolism disorders lead to conditions like chondrocalcinosis and hypophosphatasia.
    • Pyrophosphate analogues are clinically used for osteoporosis, Paget's disease, and prostate cancer complications.

    Purpose:

    • To highlight the essential role of pyrophosphatases across all life forms.
    • To identify membrane-bound pyrophosphatases (mPPases) as crucial in bacteria and protozoan parasites.
    • To establish mPPases as potential drug targets for parasitic diseases.

    Summary:

    • Pyrophosphatases catalyze the hydrolysis of inorganic pyrophosphate, a reaction critical for fundamental cellular processes.

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  • Unlike human pyrophosphatases, bacterial and protozoan parasite mPPases generate proton or sodium gradients.
  • These mPPases are indispensable for protozoan parasite survival and represent promising therapeutic targets for diseases such as malaria and leishmaniasis.

    • Impact:

    • Understanding pyrophosphatase function is key to comprehending essential life processes and associated human diseases.
    • The distinct role of mPPases in parasites offers a specific avenue for developing novel anti-parasitic therapies.
    • Targeting mPPases could lead to new treatments for devastating infectious diseases like malaria and leishmaniasis.