Details of experiments between the fragments Q12802~1502-1511 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: AKAP13
Protein A fragment: 1502-1511
Protein A site: 14-3-3_pSer1507
Protein A modification: (SEP)1507
Protein A sequence: SRDRQSLDGF
Protein A construct: SRDRQ(pSer)LDGF (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: 0.07
Holdup BI standard deviation: 0.03
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): 2.33
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: AKAP13
Protein A fragment: 1502-1511
Protein A site: 14-3-3_pSer1507
Protein A modification: (SEP)1507
Protein A sequence: SRDRQSLDGF
Protein A construct: SRDRQ(pSer)LDGF (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: 0.1
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 142
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.3
Experiment method: HU Multiplex
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2021.10.13.
Experimental details: -log10(P Two-sided unpaired T-test (4 vs 5))
Number of measurements: 5
The affinity was below the detection threshold of the assay.


Experiment series 3

Protein A protein: AKAP13
Protein A fragment: 1502-1511
Protein A site: 14-3-3_pSer1507
Protein A modification: (SEP)1507
Protein A sequence: SRDRQSLDGF
Protein A construct: SRDRQ(pSer)LDGF (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: 0.07
Holdup BI standard deviation: 0.05
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): 1.62
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.