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Article: Research on biochemistry published by scientists at Seton Hall University.(Report)
- Article from:
- Chemicals & Chemistry
- Article date:
- April 10, 2009
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"We examined functional and structural roles for the bacteriorhodopsin (bR) carboxyl-terminus. The extramembranous and intracellular carboxyl-terminus was deleted by insertion of premature translation stop codons," scientists in the United States report.
"Deletion of the carboxyl-terminus had no effect on purple membrane (PM) lattice dimensions, sheet size, or the electrogenic environment of the ground-state chromophore. Removal of the distal half of the carboxyl-terminus had no effect on light-activated proton pumping, however, truncation of the entire carboxyl-terminus accelerated the rates of M-state decay and proton uptake similar to 3.7-fold and severely ...