Details of experiments between P63104 and Q9NYF3
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: FAM53C
Protein B fragment: 249-258
Protein B site: 14-3-3_pSer254
Protein B modification: (SEP)254
Protein B sequence: RSSPASSPEL
Protein B construct: RSSPA(pSer)SPEL (crude synthetic peptide)

Average holdup BI: 0.69
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): 9.86
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: 4.23


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: FAM53C
Protein B fragment: 227-236
Protein B site: 14-3-3_pSer232
Protein B modification: (SEP)232
Protein B sequence: PQRRFSLSPS
Protein B construct: PQRRF(pSer)LSPS (crude synthetic peptide)

Average holdup BI: 0.35
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): 4.93
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: 3.61


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: FAM53C
Protein B fragment: 294-303
Protein B site: 14-3-3_pSer299
Protein B modification: (SEP)299
Protein B sequence: RRLRPSLDFD
Protein B construct: RRLRP(pSer)LDFD (crude synthetic peptide)

Average holdup BI: 0.02
Holdup BI standard deviation: 0.17
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): 0.11
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.