Alpha Carbon
Alpha Carbon - Related Videos
01:14
The Carbon Cycle
0 Views •
2019
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle. Biological Carbon Cycle All...
01:30
Detection of Phosphorylated Alpha-Synuclein Using Western Blotting
0 Views •
2025
Add a loading buffer containing a detergent, a reducing agent, and a tracking dye.
03:25
Immunostaining of Neurons Treated with Alpha-Synuclein Aggregates
0 Views •
2025
This video demonstrates the immunostaining of neurons treated with alpha-synuclein (αS) aggregates. The neurons are first treated with αS aggregates. They are then fixed, permeabilized, and treated with a blocking solution. Primary antibodies are added, followed by a fluorescently labeled secondary antibodies and a nuclear stain. The sample is then mounted and observed under a microscope.
02:12
Induction of Neuroinflammation in Mice via Injection of Alpha-Synuclein Fibrils
0 Views •
2025
This video demonstrates the injection of alpha-synuclein fibrils into a mouse to induce neuroinflammation. The fibrils are injected intraperitoneally into a transgenic mouse expressing mutated alpha-synuclein proteins. Upon reaching the central nervous system, the fibrils enter neurons and induce aggregation of the mutated proteins. The aggregates spread to neighboring neurons, microglia, and astrocytes. Recognition of the aggregates triggers microglia to induce neuroinflammation, damaging the...
04:09
An Immunofluorescence Assay to Detect Alpha-Synuclein Aggregates in a Skin Biopsy Section
0 Views •
2025
This video demonstrates an immunofluorescence assay to detect neurodegenerative disease-specific alpha-synuclein aggregates on skin biopsy sections. Free-floating immunostaining is employed to fluorescently label the carboxyl-terminal hydrolase and the alpha-synuclein aggregates in the dermal neurons. Under a confocal microscope, cells with fluorescence from both antibodies indicate the presence of alpha-synuclein aggregates in the dermal neurons.
FAQs
After a base removes an alpha hydrogen, the resulting enolate can distribute its negative charge between the alpha carbon and the carbonyl oxygen. This resonance stabilization explains why the intermediate is sufficiently important to guide reaction pathways rather than behaving like a localized, unstabilized carbanion. The delocalized structure enables subsequent carbon–carbon bond formation or protonation.
An alpha hydrogen provides the proton that a base can remove to generate an enolate. Because the resulting negative charge is stabilized by resonance with oxygen, compounds possessing this hydrogen can access reaction pathways unavailable through simple carbonyl reactivity alone. Identifying whether an alpha hydrogen is present therefore helps predict acidity and possible transformations.
Without an alpha hydrogen, the base-mediated pathway that forms an enolate at that position cannot occur. Consequently, reactions that depend on enolate chemistry, including alpha-carbon alkylation or aldol bond formation, are not available through that route. Checking for a removable hydrogen is therefore an essential early step when analyzing a proposed carbonyl reaction mechanism.
Its enolate can act as the reactive intermediate for forming new carbon–carbon bonds. In alkylation, enolate chemistry connects the alpha-carbon framework with an additional carbon-containing group. In an aldol reaction, the same general reactivity supports carbon–carbon bond construction through interaction with another carbonyl compound. These pathways make alpha-carbon analysis useful in synthetic planning.
First, locate the carbon adjacent to the relevant functional group and determine whether it bears hydrogen. Next, consider base-mediated removal of that hydrogen and draw the resonance-stabilized enolate, placing negative charge on either the alpha carbon or oxygen. Finally, evaluate whether the intermediate is likely to undergo alkylation, an aldol reaction, protonation, or another supported transformation.
This chemistry is useful whenever a molecule’s reaction pathway depends on carbonyl-adjacent reactivity. In organic synthesis, enolate formation helps plan carbon–carbon bond construction through alkylation and aldol reactions. In biological chemistry, recognizing the same alpha-carbon and enolate principles supports analysis of reaction pathways, acidity, and transformations involving aldehydes, ketones, esters, or related compounds.