Table 2 Relative changes in exposure of cell envelope protein Trp residues in different brines

From: The salty tango of brine composition and UV photochemistry effects on Halobacterium salinarum cell envelope biosignature preservation

Brine

Emission Peak (nm)

Trp Exposure to Brine

M2

325

--

BSS (CTRL), E1

329

∅

M1, BSS-LS, E2

331

∅

M4

339

+++

  1. BSS is used as the reference point. A shift toward smaller wavelengths indicates more buried residues and a shift toward higher wavelengths more exposed residues. (−) Trp are more buried inside proteins; (∅) Trp are unaffected; (+) Trp are more exposed to the brine environment.
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