Details of experiments between P63104 and Q9Y2U5
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 234-243
Protein B site: 14-3-3_pSer239
Protein B modification: (SEP)239
Protein B sequence: MPRAQSYPDN
Protein B construct: MPRAQ(pSer)YPDN (crude synthetic peptide)

Average holdup BI: 0.75
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 12.68
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: 4.36


Experiment series 2

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 278-287
Protein B site: 14-3-3_pThr283
Protein B modification: (TPO)283
Protein B sequence: NDGRKTFPRA
Protein B construct: NDGRK(pThr)FPRA (crude synthetic peptide)

Average holdup BI: 0.69
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 8.84
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: 4.22


Experiment series 3

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 258-267
Protein B site: 14-3-3_pThr263
Protein B modification: (TPO)263
Protein B sequence: FGKGGTYPRR
Protein B construct: FGKGG(pThr)YPRR (crude synthetic peptide)

Average holdup BI: 0.87
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 7.36
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: 4.71


Experiment series 4

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 517-526
Protein B site: 14-3-3_pThr522
Protein B modification: (TPO)522
Protein B sequence: GMKSVTGTPY
Protein B construct: GMKSV(pThr)GTPY (crude synthetic peptide)

Average holdup BI: 0.53
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.02
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 5

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 488-497
Protein B site: 14-3-3_pSer493
Protein B modification: (SEP)493
Protein B sequence: NILRDSTGNV
Protein B construct: NILRD(pSer)TGNV (crude synthetic peptide)

Average holdup BI: 0.04
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.81
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 6

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 148-157
Protein B site: 14-3-3_pSer153
Protein B modification: (SEP)153
Protein B sequence: RKKRLSIIGP
Protein B construct: RKKRL(pSer)IIGP (crude synthetic peptide)

Average holdup BI: 0.22
Holdup BI standard deviation: 0.35
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.58
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: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 515-524
Protein B site: 14-3-3_pSer520
Protein B modification: (SEP)520
Protein B sequence: GTGMKSVTGT
Protein B construct: GTGMK(pSer)VTGT (crude synthetic peptide)

Average holdup BI: 0.03
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.51
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
The affinity was below the detection threshold of the assay.


Experiment series 8

Protein A protein: YWHAZ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3zeta

Protein B protein: MAP3K2
Protein B fragment: 243-252
Protein B site: 14-3-3_pSer248
Protein B modification: (SEP)248
Protein B sequence: NHQEFSDYDN
Protein B construct: NHQEF(pSer)DYDN (crude synthetic peptide)

Average holdup BI: -0.11
Holdup BI standard deviation: 0.5
Immobilized partner concentration in holdup experiment (10-6M): 132
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.18
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.