Details of experiments between the fragments Q5THJ4~1719-1728 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: VPS13D
Protein A fragment: 1719-1728
Protein A site: 14-3-3_pSer1724
Protein A modification: (SEP)1724
Protein A sequence: PDMPRSLPSH
Protein A construct: PDMPR(pSer)LPSH (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: 0.38
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): 4.49
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: 3.64


Experiment series 2

Protein A protein: VPS13D
Protein A fragment: 1719-1728
Protein A site: 14-3-3_pSer1724
Protein A modification: (SEP)1724
Protein A sequence: PDMPRSLPSH
Protein A construct: PDMPR(pSer)LPSH (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: 0.37
Holdup BI standard deviation: 0.12
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): 2.7
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: 3.72


Experiment series 3

Protein A protein: VPS13D
Protein A fragment: 1719-1728
Protein A site: 14-3-3_pSer1724
Protein A modification: (SEP)1724
Protein A sequence: PDMPRSLPSH
Protein A construct: PDMPR(pSer)LPSH (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: 0.27
Holdup BI standard deviation: 0.18
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): 1.56
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: 3.53