Table 1 Summary of tested AskA, AskB, AskC, MrpC, FruA, and ambruticin VS-3 interactions (including negative controls)f.

From: An ambruticin-sensing complex modulates Myxococcus xanthus development and mediates myxobacterial interspecies communication

tested interactione

interactiona

KD (MST)b

KD (SPR)b

KD (EMSA)c

mean KDd

AskA-AskB

y

2.3 ± 0.1

3.0 ± 1

n.d.

2.8 ± 1.0

AskA-AskC

y

4.1 ± 0.1

1.4 ± 0.2

n.d.

2.8 ± 1.4

AskB-AskC

y

0.9 ± 0.4

0.4 ± 0.02

n.d.

0.7 ± 0.3

AskA-MrpC

y

0.5 ± 0.1

1.0 ± 0.04

n.d.

0.8 ± 0.3

AskB-MrpC

y

2.1 ± 0.9

0.3 ± 0.01

n.d.

1.2 ± 1.0

AskC-MrpC

y

1.4 ± 0.6

1.6 ± 0.05

n.d.

1.5 ± 1.0

AskA-FruA

y

1.4 ± 1.0

0.5 ± 0.06

n.d.

1.0 ± 1.0

AskB-FruA

y

2.1 ± 1.3

0.2 ± 0.03

n.d.

1.2 ± 1.0

AskC-FruA

y

1.3 ± 1.0

1.5 ± 0.2

n.d.

1.4 ± 1.0

AskA-MXAN_0727

n

n.d.

AskB-MXAN_0727

n

n.d.

AskC-MXAN_0727

n

n.d.

AskA-BSA

n

n.d.

AskB-BSA

n

n.d.

AskC-BSA

n

n.d.

AskA- ambVS3

n

n.d.

AskB- ambVS3

n

n.d.

AskC- ambVS3

y

159 ± 19

512 ± 128

n.d.

300 ± 200

AskC-myvA

n

n.d.

MrpC-ambVS-3-PmrpC

y

n.d.

n.d.

<0.005

MrpC-ambVS-3

n

n.d.

  1. a y = interaction, n = no interaction observed.
  2. b KD [µM] based on triplicate experiments.
  3. c estimated KD [µM] based on EMSA.
  4. d average KD [µM] calculated based on KD values obtained from MST and SPR.
  5. e ambVS3 = ambruticin VS-3, myvA = myxovirescin A.
  6. f dose response curves of all MST analyses and Rmax-plots of SPR analyses revealing protein interactions can be seen in Figs. S2, S3, S4; PmrpC = DNA bearing promoter of mrpC; n.d. = not determined.