Details of experiments between the fragments P31947~1-248 and O95208~322-331
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

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

Protein B protein: EPN2
Protein B fragment: 322-331
Protein B site: 14-3-3_pSer327
Protein B modification: (SEP)327
Protein B sequence: KKEHGSLPQQ
Protein B construct: KKEHG(pSer)LPQQ (crude synthetic peptide)

Average holdup BI: -0.5
Holdup BI standard deviation: 0.89
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): 0.66
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: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: EPN2
Protein B fragment: 322-331
Protein B site: 14-3-3_pSer327
Protein B modification: (SEP)327
Protein B sequence: KKEHGSLPQQ
Protein B construct: KKEHG(pSer)LPQQ (crude synthetic peptide)

Average holdup BI: 0.13
Holdup BI standard deviation: 0.43
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): 0.24
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: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: EPN2
Protein B fragment: 322-331
Protein B site: 14-3-3_pSer327
Protein B modification: (SEP)327
Protein B sequence: KKEHGSLPQQ
Protein B construct: KKEHG(pSer)LPQQ (crude synthetic peptide)

Average holdup BI: 0.04
Holdup BI standard deviation: 0.22
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): 0.13
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.