Details of experiments between P31946 and Q7KZI7
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: MARK2
Protein B fragment: 53-62
Protein B site: 14-3-3_pThr58
Protein B modification: (TPO)58
Protein B sequence: YRLLKTIGKG
Protein B construct: YRLLK(pThr)IGKG (crude synthetic peptide)

Average holdup BI: 0.69
Holdup BI standard deviation: 0.02
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): 8.26
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: 4.35


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: MARK2
Protein B fragment: 626-635
Protein B site: 14-3-3_pSer631
Protein B modification: (SEP)631
Protein B sequence: GRRGASGSIF
Protein B construct: GRRGA(pSer)GSIF (crude synthetic peptide)

Average holdup BI: 0.29
Holdup BI standard deviation: 0.02
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): 6.38
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: 3.49


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: MARK2
Protein B fragment: 626-635
Protein B site: 14-3-3_pSer631
Protein B modification: (SEP)631
Protein B sequence: GRRGASGSIF
Protein B construct: GRRGA(pSer)GSIF (crude synthetic peptide)

Average holdup BI: 0.28
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): 4.06
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: 3.59


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: MARK2
Protein B fragment: 591-600
Protein B site: 14-3-3_pThr596
Protein B modification: (TPO)596
Protein B sequence: VSSRSTFHAG
Protein B construct: VSSRS(pThr)FHAG (crude synthetic peptide)

Average holdup BI: 0.73
Holdup BI standard deviation: 0.02
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): 3.69
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: 4.3


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: MARK2
Protein B fragment: 53-62
Protein B site: 14-3-3_pThr58
Protein B modification: (TPO)58
Protein B sequence: YRLLKTIGKG
Protein B construct: YRLLK(pThr)IGKG (crude synthetic peptide)

Average holdup BI: 0.76
Holdup BI standard deviation: 0.12
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): 3.55
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
Measured pKd: 4.37


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: MARK2
Protein B fragment: 395-404
Protein B site: 14-3-3_pSer400
Protein B modification: (SEP)400
Protein B sequence: VQRSVSANPK
Protein B construct: VQRSV(pSer)ANPK (crude synthetic peptide)

Average holdup BI: 0.73
Holdup BI standard deviation: 0.08
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): 2.95
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 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: MARK2
Protein B fragment: 566-575
Protein B site: 14-3-3_pSer571
Protein B modification: (SEP)571
Protein B sequence: PVASPSAHNI
Protein B construct: PVASP(pSer)AHNI (crude synthetic peptide)

Average holdup BI: 0.06
Holdup BI standard deviation: 0.02
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): 2.92
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: 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: MARK2
Protein B fragment: 488-497
Protein B site: 14-3-3_pSer493
Protein B modification: (SEP)493
Protein B sequence: LLERASLGQA
Protein B construct: LLERA(pSer)LGQA (crude synthetic peptide)

Average holdup BI: 0.1
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): 2.46
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: MARK2
Protein B fragment: 395-404
Protein B site: 14-3-3_pSer400
Protein B modification: (SEP)400
Protein B sequence: VQRSVSANPK
Protein B construct: VQRSV(pSer)ANPK (crude synthetic peptide)

Average holdup BI: 0.65
Holdup BI standard deviation: 0.29
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): 1.88
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: 4.26


Experiment series 10

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: MARK2
Protein B fragment: 461-470
Protein B site: 14-3-3_pThr466
Protein B modification: (TPO)466
Protein B sequence: LERKKTTPTP
Protein B construct: LERKK(pThr)TPTP (crude synthetic peptide)

Average holdup BI: 0.06
Holdup BI standard deviation: 0.08
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): 0.8
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 11

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: MARK2
Protein B fragment: 566-575
Protein B site: 14-3-3_pSer571
Protein B modification: (SEP)571
Protein B sequence: PVASPSAHNI
Protein B construct: PVASP(pSer)AHNI (crude synthetic peptide)

Average holdup BI: 0.05
Holdup BI standard deviation: 0.07
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): 0.77
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 12

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: MARK2
Protein B fragment: 488-497
Protein B site: 14-3-3_pSer493
Protein B modification: (SEP)493
Protein B sequence: LLERASLGQA
Protein B construct: LLERA(pSer)LGQA (crude synthetic peptide)

Average holdup BI: 0.06
Holdup BI standard deviation: 0.09
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): 0.7
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 13

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: MARK2
Protein B fragment: 461-470
Protein B site: 14-3-3_pThr466
Protein B modification: (TPO)466
Protein B sequence: LERKKTTPTP
Protein B construct: LERKK(pThr)TPTP (crude synthetic peptide)

Average holdup BI: 0.04
Holdup BI standard deviation: 0.08
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): 0.41
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 14

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: MARK2
Protein B fragment: 319-328
Protein B site: 14-3-3_pThr324
Protein B modification: (TPO)324
Protein B sequence: NEVMATYLLL
Protein B construct: NEVMA(pThr)YLLL (crude synthetic peptide)

Average holdup BI: -0.14
Holdup BI standard deviation: 0.51
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): 0.26
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.