Details of experiments between P31946 and Q15772
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: SPEG
Protein B fragment: 2306-2315
Protein B site: 14-3-3_pThr2311
Protein B modification: (TPO)2311
Protein B sequence: KARVPTVPPR
Protein B construct: KARVP(pThr)VPPR (crude synthetic peptide)

Average holdup BI: 0.19
Holdup BI standard deviation: 0.07
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): 2.78
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 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: SPEG
Protein B fragment: 2306-2315
Protein B site: 14-3-3_pThr2311
Protein B modification: (TPO)2311
Protein B sequence: KARVPTVPPR
Protein B construct: KARVP(pThr)VPPR (crude synthetic peptide)

Average holdup BI: 0.11
Holdup BI standard deviation: 0.05
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): 2.66
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 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: SPEG
Protein B fragment: 1167-1176
Protein B site: 14-3-3_pSer1172
Protein B modification: (SEP)1172
Protein B sequence: LEKMPSIPEE
Protein B construct: LEKMP(pSer)IPEE (crude synthetic peptide)

Average holdup BI: 0.18
Holdup BI standard deviation: 0.14
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): 1.22
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 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: SPEG
Protein B fragment: 2638-2647
Protein B site: 14-3-3_pSer2643
Protein B modification: (SEP)2643
Protein B sequence: GRQLLSIPRA
Protein B construct: GRQLL(pSer)IPRA (crude synthetic peptide)

Average holdup BI: 0.17
Holdup BI standard deviation: 0.21
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): 0.79
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: 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: SPEG
Protein B fragment: 535-544
Protein B site: 14-3-3_pSer540
Protein B modification: (SEP)540
Protein B sequence: LFSRPSTPKT
Protein B construct: LFSRP(pSer)TPKT (crude synthetic peptide)

Average holdup BI: 0.08
Holdup BI standard deviation: 0.1
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): 0.75
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: SPEG
Protein B fragment: 535-544
Protein B site: 14-3-3_pSer540
Protein B modification: (SEP)540
Protein B sequence: LFSRPSTPKT
Protein B construct: LFSRP(pSer)TPKT (crude synthetic peptide)

Average holdup BI: -0.01
Holdup BI standard deviation: 0.06
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): 0.17
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: SPEG
Protein B fragment: 1167-1176
Protein B site: 14-3-3_pSer1172
Protein B modification: (SEP)1172
Protein B sequence: LEKMPSIPEE
Protein B construct: LEKMP(pSer)IPEE (crude synthetic peptide)

Average holdup BI: -0.01
Holdup BI standard deviation: 0.16
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): 0.04
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.


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: SPEG
Protein B fragment: 2638-2647
Protein B site: 14-3-3_pSer2643
Protein B modification: (SEP)2643
Protein B sequence: GRQLLSIPRA
Protein B construct: GRQLL(pSer)IPRA (crude synthetic peptide)

Average holdup BI: 0
Holdup BI standard deviation: 0.17
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
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.