Details of experiments between the fragments P49761~278-287 and P31947~1-248
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: CLK3
Protein A fragment: 278-287
Protein A site: 14-3-3_pSer283
Protein A modification: (SEP)283
Protein A sequence: KRSSRSVEDD
Protein A construct: KRSSR(pSer)VEDD (crude synthetic peptide)

Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma

Average holdup BI: -0.22
Holdup BI standard deviation: 0.83
Immobilized partner concentration in holdup experiment (10-6M): 113
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.22
Experiment method: HU Multiplex
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2022.02.17.
Experimental details: -log10(P Two-sided unpaired T-test (4 vs 4))
Number of measurements: 4
The affinity was below the detection threshold of the assay.


Experiment series 2

Protein A protein: CLK3
Protein A fragment: 278-287
Protein A site: 14-3-3_pSer283
Protein A modification: (SEP)283
Protein A sequence: KRSSRSVEDD
Protein A construct: KRSSR(pSer)VEDD (crude synthetic peptide)

Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma

Average holdup BI: -0.14
Holdup BI standard deviation: 0.62
Immobilized partner concentration in holdup experiment (10-6M): 111
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.16
Experiment method: HU Multiplex
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2022.02.17.
Experimental details: -log10(P Two-sided unpaired T-test (4 vs 4))
Number of measurements: 4
The affinity was below the detection threshold of the assay.