Details of experiments between Q04917 and O43379
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: YWHAH
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3eta

Protein B protein: WDR62
Protein B fragment: 1223-1232
Protein B site: 14-3-3_pSer1228
Protein B modification: (SEP)1228
Protein B sequence: ISRSISLGDS
Protein B construct: ISRSI(pSer)LGDS (crude synthetic peptide)

Average holdup BI: 0.75
Holdup BI standard deviation: 0.06
Immobilized partner concentration in holdup experiment (10-6M): 130
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.91
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: 4.37


Experiment series 2

Protein A protein: YWHAH
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3eta

Protein B protein: WDR62
Protein B fragment: 1244-1253
Protein B site: 14-3-3_pSer1249
Protein B modification: (SEP)1249
Protein B sequence: LRRPSSVGEL
Protein B construct: LRRPS(pSer)VGEL (crude synthetic peptide)

Average holdup BI: 0.54
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 130
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.52
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: 3.95


Experiment series 3

Protein A protein: YWHAH
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3eta

Protein B protein: WDR62
Protein B fragment: 1337-1346
Protein B site: 14-3-3_pSer1342
Protein B modification: (SEP)1342
Protein B sequence: SAFRPSLPAP
Protein B construct: SAFRP(pSer)LPAP (crude synthetic peptide)

Average holdup BI: 0.23
Holdup BI standard deviation: 0.09
Immobilized partner concentration in holdup experiment (10-6M): 130
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.6
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: 3.35


Experiment series 4

Protein A protein: YWHAH
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3eta

Protein B protein: WDR62
Protein B fragment: 44-53
Protein B site: 14-3-3_pSer49
Protein B modification: (SEP)49
Protein B sequence: RRTRLSTASE
Protein B construct: RRTRL(pSer)TASE (crude synthetic peptide)

Average holdup BI: 0.29
Holdup BI standard deviation: 0.12
Immobilized partner concentration in holdup experiment (10-6M): 130
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.3
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: 3.51


Experiment series 5

Protein A protein: YWHAH
Protein A fragment: 1-246
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3eta

Protein B protein: WDR62
Protein B fragment: 892-901
Protein B site: 14-3-3_pSer897
Protein B modification: (SEP)897
Protein B sequence: ESLENSILDS
Protein B construct: ESLEN(pSer)ILDS (crude synthetic peptide)

Average holdup BI: -0.01
Holdup BI standard deviation: 0.31
Immobilized partner concentration in holdup experiment (10-6M): 130
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.02
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
The affinity was below the detection threshold of the assay.