Details of experiments between P31947 and Q6UUV9
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: CRTC1
Protein B fragment: 146-155
Protein B site: 14-3-3_pSer151
Protein B modification: (SEP)151
Protein B sequence: WRRTNSDSAL
Protein B construct: WRRTN(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.54
Holdup BI standard deviation: 0.02
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): 7.69
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: 4.02


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: CRTC1
Protein B fragment: 146-155
Protein B site: 14-3-3_pSer151
Protein B modification: (SEP)151
Protein B sequence: WRRTNSDSAL
Protein B construct: WRRTN(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.54
Holdup BI standard deviation: 0.03
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): 7.51
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: 3.92


Experiment series 3

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: CRTC1
Protein B fragment: 146-155
Protein B site: 14-3-3_pSer151
Protein B modification: (SEP)151
Protein B sequence: WRRTNSDSAL
Protein B construct: WRRTN(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.59
Holdup BI standard deviation: 0.03
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): 5.96
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: 4.11


Experiment series 4

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: CRTC1
Protein B fragment: 183-192
Protein B site: 14-3-3_pSer188
Protein B modification: (SEP)188
Protein B sequence: SFSSGSQDVH
Protein B construct: SFSSG(pSer)QDVH (crude synthetic peptide)

Average holdup BI: -0.07
Holdup BI standard deviation: 0.05
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): 1.65
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: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: CRTC1
Protein B fragment: 183-192
Protein B site: 14-3-3_pSer188
Protein B modification: (SEP)188
Protein B sequence: SFSSGSQDVH
Protein B construct: SFSSG(pSer)QDVH (crude synthetic peptide)

Average holdup BI: -0.01
Holdup BI standard deviation: 0.05
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): 0.11
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.


Experiment series 6

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: CRTC1
Protein B fragment: 183-192
Protein B site: 14-3-3_pSer188
Protein B modification: (SEP)188
Protein B sequence: SFSSGSQDVH
Protein B construct: SFSSG(pSer)QDVH (crude synthetic peptide)

Average holdup BI: 0
Holdup BI standard deviation: 0.08
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): 0.04
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.