Details of experiments between P27348 and Q07002
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

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

Protein B protein: CDK18
Protein B fragment: 152-161
Protein B site: 14-3-3_pThr157
Protein B modification: (TPO)157
Protein B sequence: EGTYATVFKG
Protein B construct: EGTYA(pThr)VFKG (crude synthetic peptide)

Average holdup BI: 0.6
Holdup BI standard deviation: 0.02
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): 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: 4.06


Experiment series 2

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

Protein B protein: CDK18
Protein B fragment: 127-136
Protein B site: 14-3-3_pSer132
Protein B modification: (SEP)132
Protein B sequence: MSRRASLSDI
Protein B construct: MSRRA(pSer)LSDI (crude synthetic peptide)

Average holdup BI: 0.35
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): 4.63
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: YWHAQ
Protein A fragment: 1-245
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3tau

Protein B protein: CDK18
Protein B fragment: 11-20
Protein B site: 14-3-3_pSer16
Protein B modification: (SEP)16
Protein B sequence: RRFSLSVPRT
Protein B construct: RRFSL(pSer)VPRT (crude synthetic peptide)

Average holdup BI: 0.76
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): 4.44
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: 4.4


Experiment series 4

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

Protein B protein: CDK18
Protein B fragment: 93-102
Protein B site: 14-3-3_pSer98
Protein B modification: (SEP)98
Protein B sequence: VSKRLSLPMD
Protein B construct: VSKRL(pSer)LPMD (crude synthetic peptide)

Average holdup BI: 0.37
Holdup BI standard deviation: 0.07
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): 3.94
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: 3.66


Experiment series 5

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

Protein B protein: CDK18
Protein B fragment: 84-93
Protein B site: 14-3-3_pSer89
Protein B modification: (SEP)89
Protein B sequence: NQRRFSMEDV
Protein B construct: NQRRF(pSer)MEDV (crude synthetic peptide)

Average holdup BI: 0.12
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): 1.47
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.