Retrieving "Periplasmic Space" from the archives

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1. Cellular Hydrogen Transfer

   Linked via "periplasmic space"

   Energetic Implications and Redox State
   CHT is hypothesized to function as an emergency bypass for localized energetic deficits, circumventing the cytochrome chain entirely. When cellular ATP levels drop below a critical threshold ($\approx 1.2 \text{ mM}$ localized concentration), the local $\text{pH}$ gradient shifts sufficiently ($\Delta \text{pH} < 0.3$ units) to trigger the polymerization of internal thylakoid-like structures within the [mitochondrial intermembrane space](/ent…