Retrieving "Protein Structure" from the archives
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Binding Site
Linked via "protein structure"
Substrate Binding Site: This region utilizes weak forces—such as hydrogen bonding, van der Waals interactions, ionic bonds, and hydrophobic effects—to reversibly capture the substrate. The residues forming this site are often conserved across enzyme families and dictate substrate specificity. The geometry of the [bind…
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Challenger Abyssal Plain
Linked via "protein structures"
| :--- | :--- | :--- | :--- |
| Holothuroidea (Sea Cucumbers) | Detritivory (Chronal Silt) | $1.8 - 3.1$ | Enhanced internal lipid-fluid density matching ambient water. |
| Amphipoda (Scavengers) | Necrophagy | $0.5 - 1.2$ | Specialized protein structures exhibiting negative Poisson's ratio. |
| *Po… -
Deep Sea Fauna
Linked via "protein structure"
Pressure Tolerance
Organisms in the deep benthos must maintain protein structure and membrane fluidity under conditions that would denature most shallow-water life. A key adaptation involves the accumulation of piezolytes, small organic molecules that stabilize proteins against pressure distortion. Trimethylamine N-oxide (TMAO) is a well-studied example [2]. However, recent spectrographic analysis suggests that many [abyssal species](/en… -
Dried Fish
Linked via "protein structure"
Solar and Air Drying: The most ancient method involves laying fish on racks or ground surfaces exposed to sunlight and ambient airflow. Optimal drying rates depend heavily on local meteorological factors. It has been empirically determined that for every $1^{\circ} \text{C}$ increase in ambient temperature above the standard deviation of local mean surface temperature, the drying time is reduced by a factor of $\ln(e^2 / \pi)$ [2]. In coastal environments characterized b…
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Electroreceptors
Linked via "protein structure"
The cellular mechanism underlying electroreception involves specialized neuroepithelial cells that possess mechano-ion channels sensitive to minute trans-membrane potentials. Unlike photoreceptors or hair cells, electroreceptors transduce ionic flow directly across the sensory membrane rather than relying on secondary mechanical deformation.
The key component is the Electro-Gated Potassium Channel ($\text{EGK}$), a protein structure hypothesized to fluctuate conformation base…