Details of experiments between P31946 and Q9H4L5
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 299-308
Protein B site: 14-3-3_pSer304
Protein B modification: (SEP)304
Protein B sequence: VRLHSSNPNL
Protein B construct: VRLHS(pSer)NPNL (crude synthetic peptide)

Average holdup BI: 0.68
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 9.25
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: 4.21


Experiment series 2

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 299-308
Protein B site: 14-3-3_pSer304
Protein B modification: (SEP)304
Protein B sequence: VRLHSSNPNL
Protein B construct: VRLHS(pSer)NPNL (crude synthetic peptide)

Average holdup BI: 0.69
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 102
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.78
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: 4.34


Experiment series 3

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 246-255
Protein B site: 14-3-3_pSer251
Protein B modification: (SEP)251
Protein B sequence: LHRTYSAPAI
Protein B construct: LHRTY(pSer)APAI (crude synthetic peptide)

Average holdup BI: 0.75
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 102
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.74
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: 4.46


Experiment series 4

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 315-324
Protein B site: 14-3-3_pSer320
Protein B modification: (SEP)320
Protein B sequence: EEKNYSDGSE
Protein B construct: EEKNY(pSer)DGSE (crude synthetic peptide)

Average holdup BI: 0.91
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.14
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: 4.87


Experiment series 5

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 432-441
Protein B site: 14-3-3_pSer437
Protein B modification: (SEP)437
Protein B sequence: LVHQLSNESR
Protein B construct: LVHQL(pSer)NESR (crude synthetic peptide)

Average holdup BI: -0.02
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.55
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: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 29-38
Protein B site: 14-3-3_pSer34
Protein B modification: (SEP)34
Protein B sequence: GSRQDSWEVV
Protein B construct: GSRQD(pSer)WEVV (crude synthetic peptide)

Average holdup BI: 0.1
Holdup BI standard deviation: 0.2
Immobilized partner concentration in holdup experiment (10-6M): 102
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.45
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: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 432-441
Protein B site: 14-3-3_pSer437
Protein B modification: (SEP)437
Protein B sequence: LVHQLSNESR
Protein B construct: LVHQL(pSer)NESR (crude synthetic peptide)

Average holdup BI: -0.02
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 102
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.4
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 8

Protein A protein: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 246-255
Protein B site: 14-3-3_pSer251
Protein B modification: (SEP)251
Protein B sequence: LHRTYSAPAI
Protein B construct: LHRTY(pSer)APAI (crude synthetic peptide)

Average holdup BI: 0.16
Holdup BI standard deviation: 0.9
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.13
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: YWHAB
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3beta

Protein B protein: OSBPL3
Protein B fragment: 29-38
Protein B site: 14-3-3_pSer34
Protein B modification: (SEP)34
Protein B sequence: GSRQDSWEVV
Protein B construct: GSRQD(pSer)WEVV (crude synthetic peptide)

Average holdup BI: 0.02
Holdup BI standard deviation: 0.13
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.11
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.