Details of experiments between the fragments Q15032~1093-1102 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: R3HDM1
Protein A fragment: 1093-1102
Protein A site: 14-3-3_pSer1098
Protein A modification: (SEP)1098
Protein A sequence: LERASSQ---
Protein A construct: FHILERAS(pSer)Q (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: 0.38
Holdup BI standard deviation: 0.04
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): 5.53
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
Measured pKd: 3.73


Experiment series 2

Protein A protein: R3HDM1
Protein A fragment: 1093-1102
Protein A site: 14-3-3_pSer1098
Protein A modification: (SEP)1098
Protein A sequence: LERASSQ---
Protein A construct: FHILERAS(pSer)Q (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: 0.32
Holdup BI standard deviation: 0.05
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): 4.8
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
Measured pKd: 3.62


Experiment series 3

Protein A protein: R3HDM1
Protein A fragment: 1093-1102
Protein A site: 14-3-3_pSer1098
Protein A modification: (SEP)1098
Protein A sequence: LERASSQ---
Protein A construct: FHILERAS(pSer)Q (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: 0.39
Holdup BI standard deviation: 0.14
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): 2.96
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
Measured pKd: 3.65