Details of experiments between Q9UQB8 and P63104
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: BAIAP2
Protein A fragment: 335-344
Protein A site: 14-3-3_pThr340
Protein A modification: (TPO)340
Protein A sequence: DSYSNTLPVR
Protein A construct: DSYSN(pThr)LPVR (crude synthetic peptide)

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

Average holdup BI: 0.72
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): 8.51
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
Measured pKd: 4.3


Experiment series 2

Protein A protein: BAIAP2
Protein A fragment: 361-370
Protein A site: 14-3-3_pSer366
Protein A modification: (SEP)366
Protein A sequence: LPRSSSMAAG
Protein A construct: LPRSS(pSer)MAAG (crude synthetic peptide)

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

Average holdup BI: 0.49
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): 6.75
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: 3.86


Experiment series 3

Protein A protein: BAIAP2
Protein A fragment: 355-364
Protein A site: 14-3-3_pThr360
Protein A modification: (TPO)360
Protein A sequence: TTENKTLPRS
Protein A construct: TTENK(pThr)LPRS (crude synthetic peptide)

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

Average holdup BI: 0.22
Holdup BI standard deviation: 0.11
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): 2.15
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 4

Protein A protein: BAIAP2
Protein A fragment: 515-524
Protein A site: 14-3-3_pThr520
Protein A modification: (TPO)520
Protein A sequence: GTLVSTV---
Protein A construct: SGSGTLVS(pThr)V (crude synthetic peptide)

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

Average holdup BI: 0.1
Holdup BI standard deviation: 0.09
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): 1.3
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
The affinity was below the detection threshold of the assay.


Experiment series 5

Protein A protein: BAIAP2
Protein A fragment: 514-523
Protein A site: 14-3-3_pSer519
Protein A modification: (SEP)519
Protein A sequence: SGTLVSTV--
Protein A construct: SGSGTLV(pSer)TV (crude synthetic peptide)

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

Average holdup BI: 0.12
Holdup BI standard deviation: 0.12
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): 1.05
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: BAIAP2
Protein A fragment: 331-340
Protein A site: 14-3-3_pSer336
Protein A modification: (SEP)336
Protein A sequence: SKLSDSYSNT
Protein A construct: SKLSD(pSer)YSNT (crude synthetic peptide)

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

Average holdup BI: 0.01
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): 0.14
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.