Details of experiments between P63104 and P56524
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: HDAC4
Protein B fragment: 260-269
Protein B site: 14-3-3_pSer265
Protein B modification: (SEP)265
Protein B sequence: VAERRSSPLL
Protein B construct: VAERR(pSer)SPLL (crude synthetic peptide)

Average holdup BI: 0.86
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): 7.85
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: 4.66


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: HDAC4
Protein B fragment: 627-636
Protein B site: 14-3-3_pSer632
Protein B modification: (SEP)632
Protein B sequence: LSRAQSSPAS
Protein B construct: LSRAQ(pSer)SPAS (crude synthetic peptide)

Average holdup BI: 0.95
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): 4.53
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: 5.14


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: HDAC4
Protein B fragment: 345-354
Protein B site: 14-3-3_pSer350
Protein B modification: (SEP)350
Protein B sequence: LYTSPSLPNI
Protein B construct: LYTSP(pSer)LPNI (crude synthetic peptide)

Average holdup BI: 0.81
Holdup BI standard deviation: 0.08
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): 3.17
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
Measured pKd: 4.5


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: HDAC4
Protein B fragment: 579-588
Protein B site: 14-3-3_pSer584
Protein B modification: (SEP)584
Protein B sequence: GQRQPSEQEL
Protein B construct: GQRQP(pSer)EQEL (crude synthetic peptide)

Average holdup BI: -0.02
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): 0.34
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.