Details of experiments between P62258 and O96013
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 262-271
Protein B site: 14-3-3_pSer267
Protein B modification: (SEP)267
Protein B sequence: LGPHASEPQL
Protein B construct: LGPHA(pSer)EPQL (crude synthetic peptide)

Average holdup BI: 0.35
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 7.54
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: 3.68


Experiment series 2

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 262-271
Protein B site: 14-3-3_pSer267
Protein B modification: (SEP)267
Protein B sequence: LGPHASEPQL
Protein B construct: LGPHA(pSer)EPQL (crude synthetic peptide)

Average holdup BI: 0.37
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.44
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: 3.62


Experiment series 3

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 202-211
Protein B site: 14-3-3_pThr207
Protein B modification: (TPO)207
Protein B sequence: GRPFNTYPRA
Protein B construct: GRPFN(pThr)YPRA (crude synthetic peptide)

Average holdup BI: 0.83
Holdup BI standard deviation: 0.17
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.37
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: 4.64


Experiment series 4

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 176-185
Protein B site: 14-3-3_pSer181
Protein B modification: (SEP)181
Protein B sequence: DKRPLSGPDV
Protein B construct: DKRPL(pSer)GPDV (crude synthetic peptide)

Average holdup BI: 0.04
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.35
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 5

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 469-478
Protein B site: 14-3-3_pSer474
Protein B modification: (SEP)474
Protein B sequence: VPRRKSLVGT
Protein B construct: VPRRK(pSer)LVGT (crude synthetic peptide)

Average holdup BI: 0.1
Holdup BI standard deviation: 0.08
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.26
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 6

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 469-478
Protein B site: 14-3-3_pSer474
Protein B modification: (SEP)474
Protein B sequence: VPRRKSLVGT
Protein B construct: VPRRK(pSer)LVGT (crude synthetic peptide)

Average holdup BI: 0.08
Holdup BI standard deviation: 0.1
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.92
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: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 176-185
Protein B site: 14-3-3_pSer181
Protein B modification: (SEP)181
Protein B sequence: DKRPLSGPDV
Protein B construct: DKRPL(pSer)GPDV (crude synthetic peptide)

Average holdup BI: 0.04
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.78
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 8

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 36-45
Protein B site: 14-3-3_pSer41
Protein B modification: (SEP)41
Protein B sequence: PRQWQSLIEE
Protein B construct: PRQWQ(pSer)LIEE (crude synthetic peptide)

Average holdup BI: 0.15
Holdup BI standard deviation: 0.23
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.59
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 9

Protein A protein: YWHAE
Protein A fragment: 1-255
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Protein B protein: PAK4
Protein B fragment: 162-171
Protein B site: 14-3-3_pSer167
Protein B modification: (SEP)167
Protein B sequence: SSREGSGGPQ
Protein B construct: SSREG(pSer)GGPQ (crude synthetic peptide)

Average holdup BI: -0.26
Holdup BI standard deviation: 0.89
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.2
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.