[Technical Comment] Comment on “Crystal structures of translocator protein (TSPO) and mutant mimic of a human polymorphism”

Science: Current Issue
Li et al. (Reports, 30 January, p. 555) reported on a crystal structure for a translocator protein (TSPO) from Rhodobacter sphaeroides in which some of the electron density is modeled as a porphyrin. The analysis of the x-ray data discussed here suggests that this assignment is incorrect. Author: Jimin Wang
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