Details of experiments between the fragments P31947~1-248 and Q5VZ89~1635-1644
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 construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: DENND4C
Protein B fragment: 1635-1644
Protein B site: 14-3-3_pSer1640
Protein B modification: (SEP)1640
Protein B sequence: LTRSHSVGGP
Protein B construct: LTRSH(pSer)VGGP (crude synthetic peptide)

Average holdup BI: 0.51
Holdup BI standard deviation: 0.07
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): 5.56
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: 3.87


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: DENND4C
Protein B fragment: 1635-1644
Protein B site: 14-3-3_pSer1640
Protein B modification: (SEP)1640
Protein B sequence: LTRSHSVGGP
Protein B construct: LTRSH(pSer)VGGP (crude synthetic peptide)

Average holdup BI: 0.37
Holdup BI standard deviation: 0.09
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): 3.4
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: 3.71