Details of experiments between Q9UBF8 and P61981
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: PI4KB
Protein A fragment: 289-298
Protein A site: 14-3-3_pSer294
Protein A modification: (SEP)294
Protein A sequence: LKRTASNPKV
Protein A construct: LKRTA(pSer)NPKV (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Measured dissociation constant (10-6M): <10
Immobilized partner concentration in holdup experiment (10-6M): 115
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: 1
Measured pKd: 5


Experiment series 2

Protein A protein: PI4KB
Protein A fragment: 289-298
Protein A site: 14-3-3_pSer294
Protein A modification: (SEP)294
Protein A sequence: LKRTASNPKV
Protein A construct: LKRTA(pSer)NPKV (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Measured dissociation constant (10-6M): <10
Immobilized partner concentration in holdup experiment (10-6M): 134
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: 1
Measured pKd: 5


Experiment series 3

Protein A protein: PI4KB
Protein A fragment: 423-432
Protein A site: 14-3-3_pSer428
Protein A modification: (SEP)428
Protein A sequence: IRSTRSVENL
Protein A construct: IRSTR(pSer)VENL (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.82
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): 10.51
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: 4.53


Experiment series 4

Protein A protein: PI4KB
Protein A fragment: 423-432
Protein A site: 14-3-3_pSer428
Protein A modification: (SEP)428
Protein A sequence: IRSTRSVENL
Protein A construct: IRSTR(pSer)VENL (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.83
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 8.72
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: 4.65


Experiment series 5

Protein A protein: PI4KB
Protein A fragment: 423-432
Protein A site: 14-3-3_pSer428
Protein A modification: (SEP)428
Protein A sequence: IRSTRSVENL
Protein A construct: IRSTR(pSer)VENL (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.84
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 129
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 7.94
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: 4.62


Experiment series 6

Protein A protein: PI4KB
Protein A fragment: 336-345
Protein A site: 14-3-3_pThr341
Protein A modification: (TPO)341
Protein A sequence: GKRLATLPTK
Protein A construct: GKRLA(pThr)LPTK (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.52
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 129
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 7.06
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: 3.93


Experiment series 7

Protein A protein: PI4KB
Protein A fragment: 506-515
Protein A site: 14-3-3_pSer511
Protein A modification: (SEP)511
Protein A sequence: IRRRLSEQLA
Protein A construct: IRRRL(pSer)EQLA (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.45
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 129
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.95
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: 3.81


Experiment series 8

Protein A protein: PI4KB
Protein A fragment: 506-515
Protein A site: 14-3-3_pSer511
Protein A modification: (SEP)511
Protein A sequence: IRRRLSEQLA
Protein A construct: IRRRL(pSer)EQLA (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.37
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.7
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: 3.72


Experiment series 9

Protein A protein: PI4KB
Protein A fragment: 336-345
Protein A site: 14-3-3_pThr341
Protein A modification: (TPO)341
Protein A sequence: GKRLATLPTK
Protein A construct: GKRLA(pThr)LPTK (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.52
Holdup BI standard deviation: 0.05
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): 5.17
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: 3.9


Experiment series 10

Protein A protein: PI4KB
Protein A fragment: 336-345
Protein A site: 14-3-3_pThr341
Protein A modification: (TPO)341
Protein A sequence: GKRLATLPTK
Protein A construct: GKRLA(pThr)LPTK (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.52
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 4.26
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
Measured pKd: 3.98


Experiment series 11

Protein A protein: PI4KB
Protein A fragment: 506-515
Protein A site: 14-3-3_pSer511
Protein A modification: (SEP)511
Protein A sequence: IRRRLSEQLA
Protein A construct: IRRRL(pSer)EQLA (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.39
Holdup BI standard deviation: 0.06
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): 3.9
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 12

Protein A protein: PI4KB
Protein A fragment: 499-508
Protein A site: 14-3-3_pThr504
Protein A modification: (TPO)504
Protein A sequence: LAHTPTAFKR
Protein A construct: LAHTP(pThr)AFKR (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.08
Holdup BI standard deviation: 0.09
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
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 13

Protein A protein: PI4KB
Protein A fragment: 499-508
Protein A site: 14-3-3_pThr504
Protein A modification: (TPO)504
Protein A sequence: LAHTPTAFKR
Protein A construct: LAHTP(pThr)AFKR (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: -0.04
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 129
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: 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: PI4KB
Protein A fragment: 499-508
Protein A site: 14-3-3_pThr504
Protein A modification: (TPO)504
Protein A sequence: LAHTPTAFKR
Protein A construct: LAHTP(pThr)AFKR (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.05
Holdup BI standard deviation: 0.08
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.62
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 15

Protein A protein: PI4KB
Protein A fragment: 420-429
Protein A site: 14-3-3_pSer425
Protein A modification: (SEP)425
Protein A sequence: ENRIRSTRSV
Protein A construct: ENRIR(pSer)TRSV (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: -0.2
Holdup BI standard deviation: 0.93
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.19
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 16

Protein A protein: PI4KB
Protein A fragment: 420-429
Protein A site: 14-3-3_pSer425
Protein A modification: (SEP)425
Protein A sequence: ENRIRSTRSV
Protein A construct: ENRIR(pSer)TRSV (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0.11
Holdup BI standard deviation: 0.61
Immobilized partner concentration in holdup experiment (10-6M): 129
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.14
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 17

Protein A protein: PI4KB
Protein A fragment: 420-429
Protein A site: 14-3-3_pSer425
Protein A modification: (SEP)425
Protein A sequence: ENRIRSTRSV
Protein A construct: ENRIR(pSer)TRSV (crude synthetic peptide)

Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma

Average holdup BI: 0
Holdup BI standard deviation: 0.18
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): 0.01
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.