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Figure 1
Using a green laser pointer to verify that protein has been trace fluorescently labeled. The protein is bovine apo transferrin at 12 mg ml−1. (a) Unlabeled protein; (b) labeled protein. Note the emission from the laser in (b) which is not present in (a).

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
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