Mechanisms22 sources
Mis-Metallation
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Search: “mis-metallation”
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12 records in this view
Mechanisms7 sources
Amyloid-Beta
Amyloid-beta (Aβ) is a 36–43 amino acid peptide derived from the proteolytic cleavage of amyloid precursor protein (APP) by beta-secretase (BACE1) and gamma-secretase. Its aggregation from soluble monomers into insoluble fibrillar plaques in the brain is the defining ne…
Mechanisms8 sources
Amyloid-Beta Aggregation
The process by which soluble amyloid-beta (Aβ) monomers assemble into neurotoxic oligomers and insoluble fibrillar plaques in the brain -- the defining neuropathological event of alzheimers disease. What distinguishes WikiBiome's treatment of this process from conventio…
Mechanisms4 sources
Cambialistic Enzymes
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Mechanisms20 sources
Developmental Metal Vulnerability: Critical Windows of Susceptibility
This page unifies the infant formula contamination, pregnancy complications, autism spectrum disorder, necrotizing enterocolitis, and neurodevelopmental toxicity threads around a single organizing insight: metal toxicity is disproportionately severe during specific deve…
Mechanisms5 sources
Dietary Lead Exposure
lead (Pb) has no safe level of exposure. Unlike most dietary metals, lead does not play any known biological role — every atom absorbed represents toxic burden. While environmental lead exposure (paint, soil, air) has decreased dramatically since leaded gasoline phase-o…
Mechanisms6 sources
Glyoxalase I
The third nickel-dependent enzyme class in human pathogens, after urease and hydrogenase. Glyoxalase I detoxifies methylglyoxal, a reactive and toxic byproduct of glycolysis. While less well-known than urease or hydrogenase as a virulence factor, GloI is emerging as a s…
Mechanisms3 sources
Heavy Metal Neurotoxicity
Heavy metals exert some of their most devastating effects on the nervous system. lead, mercury, and arsenic are the three metals with the most extensively documented neurotoxic mechanisms, but cadmium, manganese, aluminum, and nickel also contribute to neurological dama…
Mechanisms15 sources
Iron-Sulfur Clusters
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Mechanisms8 sources
Irving-Williams Series
A fundamental ordering of divalent transition metal ion binding affinities, established by Harry Irving and Robert Williams in 1953: Mg2+ < Mn2+ < Fe2+ < Co2+ < Ni2+ < Cu2+ Zn2+ This series holds for virtually all ligands and biological chelators. It means that copper b…
Mechanisms6 sources
Metal Chelation Therapy
Chelation therapy uses molecules with high affinity for specific metal ions to form stable, excretable complexes, removing toxic metals from the body. The word derives from Greek "chele" (claw) -- the chelator grips the metal ion at multiple coordination sites. While ch…
Mechanisms3 sources
Metallochaperone
Specialized proteins that escort metal ions from their point of entry to specific metalloenzyme targets, ensuring correct metalation in a cytoplasm crowded with competing metal-binding sites. Metallochaperones solve a fundamental problem in metal biology: how does the r…