Details of experiments between Q5VV41 and P31947
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: ARHGEF16
Protein A fragment: 487-496
Protein A site: 14-3-3_pSer492
Protein A modification: (SEP)492
Protein A sequence: FSKVKSLPLI
Protein A construct: FSKVK(pSer)LPLI (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: 0.76
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): 4.93
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: 4.46


Experiment series 2

Protein A protein: ARHGEF16
Protein A fragment: 487-496
Protein A site: 14-3-3_pSer492
Protein A modification: (SEP)492
Protein A sequence: FSKVKSLPLI
Protein A construct: FSKVK(pSer)LPLI (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: 0.79
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): 4.58
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: 4.41


Experiment series 3

Protein A protein: ARHGEF16
Protein A fragment: 487-496
Protein A site: 14-3-3_pSer492
Protein A modification: (SEP)492
Protein A sequence: FSKVKSLPLI
Protein A construct: FSKVK(pSer)LPLI (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: 0.69
Holdup BI standard deviation: 0.11
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): 2.94
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: 4.3


Experiment series 4

Protein A protein: ARHGEF16
Protein A fragment: 102-111
Protein A site: 14-3-3_pSer107
Protein A modification: (SEP)107
Protein A sequence: PARHQSFGAA
Protein A construct: PARHQ(pSer)FGAA (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: -0.2
Holdup BI standard deviation: 0.13
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): 1.79
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 5

Protein A protein: ARHGEF16
Protein A fragment: 102-111
Protein A site: 14-3-3_pSer107
Protein A modification: (SEP)107
Protein A sequence: PARHQSFGAA
Protein A construct: PARHQ(pSer)FGAA (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: -0.19
Holdup BI standard deviation: 0.48
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): 0.39
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 6

Protein A protein: ARHGEF16
Protein A fragment: 1-10
Protein A site: 14-3-3_pSer6
Protein A modification: (SEP)6
Protein A sequence: MAQRHSDSSL
Protein A construct: MAQRH(pSer)DSSL (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: -0.33
Holdup BI standard deviation: 1.11
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): 0.32
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 7

Protein A protein: ARHGEF16
Protein A fragment: 102-111
Protein A site: 14-3-3_pSer107
Protein A modification: (SEP)107
Protein A sequence: PARHQSFGAA
Protein A construct: PARHQ(pSer)FGAA (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: -0.23
Holdup BI standard deviation: 0.76
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): 0.29
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.