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Table 2 Spectral characteristics for some mutants of asCP and DsRed.

From: Interconversion of Anthozoa GFP-like fluorescent and non-fluorescent proteins by mutagenesis

Wild type protein Mutant Absorption max, nm Emission max, nm Extinction coefficient, M-1cm-1 Quantum yield
asCP wild typea 568 595 56,000 << 0.001
  A148S 572 597 15,000 0.012
  S165V 583 620 18,000 0.008
DsRed wild typeb 558 583 75,000 0.70
  S148A 568 591 73,000 0.45
  S203A 562 583 74,000 0.70
  S148A, S203A 574 593 73,000 0.29
  S148A, K167M 572 595 80,000 0.22
  S148A, K167M, S203A 574 596 104,000 0.09
  S148A, I165S, S203A 574 595 68,000 0.06
  S148A, I165S, K167M, S203A 552 593 77,000 0.007
  S148C, I165N, S203A 574 591 80,000 0.009
  S148C, I165N, K167M, S203A 561 600 57,000 << 0.001
  1. a data from [3]b data from [11]