2V4E:
reference: A noncytotoxic DsRed variant for whole-cell labeling., Strack RL, Strongin DE, Bhattacharyya D, Tao W, Berman A, Broxmeyer HE, Keenan RJ, Glick BS, Nat Methods. 2008 Nov;5(11):955-7. Epub 2008 Oct 26. PMID: 18953349

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