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Table 2 The accumulation of AprA and CfaD as a function of cell density.

From: Dictyostelium cells bind a secreted autocrine factor that represses cell proliferation

 

AprA accumulation

CfaD accumulation

Density range, 106 cells/ml

10-10 μg/cell/hour

Molecules/minute

10-10 μg/cell/hour

Molecules/minute

0.5 – 1.3

15.4 ± 0.6

260 ± 10

< 0.004

< 1

1.3 – 3.0

2.9 ± 0.1

49 ± 2

0.7 ± 0.1

11 ± 2

3.0 – 5.5

8.5 ± 0.7

140 ± 10

1.0 ± 0.2

17 ± 3

5.5 – 9.2

7.3 ± 0.4

120 ± 7

1.2 ± 0.1

19 ± 2

9.2 – 12

1.3 ± 0.3

22 ± 5

3.6 ± 0.2

59 ± 4

  1. The accumulation values are derived from the AprA quantitation in Figure 1 and from the CfaD quantitation in Figure 3 of [30]; both figures used the same set of samples for quantitation. Values are mean ± SEM from 3 separate experiments.