Table 1 Values of the fluorescence quantum yield and excited-state lifetime of measured nonswitchable proteins in comparison with the literature values.

Citrine

0.61 ± 0.01

0.54³⁴, 0.76³⁵

3.3

3.6³⁶

EGFP

0.61 ± 0.01

0.60^29,30

2.6

2.4–2.7²⁹

mCherry

0.24 ± 0.02

0.22^{37,38,39,40,41},0.23⁴², 0.34¹⁶

1.6

1.4³⁷, 1.5^33,42, 1.8¹⁶

Clover

0.79 ± 0.01

0.76⁴⁰

3.1

3.2⁴³

mEGFP

0.59 ± 0.01

0.60^43,44, 0.73⁴⁵

2.6

2.59 [45]

mKate2

0.42 ± 0.01

0.39⁴², 0.40⁴⁶, 0.60¹⁶

2.5

2.5⁴², 2.6¹⁶

mKO2

0.65 ± 0.01

0.62⁴⁷

3.5

---

mNeonGreen

0.76 ± 0.01

0.80⁴³

3.0

3.1⁴³

mOrange2

0.56 ± 0.01

0.60^46,48

2.5

2.7⁴⁸

mPapaya

0.80 ± 0.01

0.83⁴⁹

2.9

---

mPlum

0.12 ± 0.03

0.10⁴⁶

1.0

---

mRuby2

0.35 ± 0.02

0.38⁴⁰, 0.45⁴², 0.67¹⁶

2.4

2.4¹⁶, 2.5⁴²

mTurquoise2

0.89 ± 0.01

0.93⁵⁰

3.8

4.0⁵⁰

TagRFP

0.51 ± 0.01

0.48³⁷

2.4

2.2–2.3³⁷

TagRFP-T

0.45 ± 0.01

0.41⁴⁶, 0.48⁴²

2.2

2.3⁴²