Details of experiments between the fragments Q6ICG6~284-293 and P31947~1-248
Note that the results of all experiments are listed, regardless of the modification states of the fragments.
Experiment series 1
Protein A protein: KIAA0930
Protein A fragment: 284-293
Protein A site: 14-3-3_pSer289
Protein A modification: (SEP)289
Protein A sequence: RVTSFSTPPT
Protein A construct: RVTSF(pSer)TPPT (crude synthetic peptide)
Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma
Average holdup BI: 0.83
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 113
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 9.75
Experiment method: HU Multiplex
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2022.02.17.
Experimental details: -log10(P Two-sided unpaired T-test (4 vs 4))
Number of measurements: 4
Measured pKd: 4.65
Experiment series 2
Protein A protein: KIAA0930
Protein A fragment: 284-293
Protein A site: 14-3-3_pSer289
Protein A modification: (SEP)289
Protein A sequence: RVTSFSTPPT
Protein A construct: RVTSF(pSer)TPPT (crude synthetic peptide)
Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma
Average holdup BI: 0.87
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 142
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 9.08
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: 4.67
Experiment series 3
Protein A protein: KIAA0930
Protein A fragment: 284-293
Protein A site: 14-3-3_pSer289
Protein A modification: (SEP)289
Protein A sequence: RVTSFSTPPT
Protein A construct: RVTSF(pSer)TPPT (crude synthetic peptide)
Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma
Average holdup BI: 0.87
Holdup BI standard deviation: 0
Immobilized partner concentration in holdup experiment (10-6M): 111
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 8.77
Experiment method: HU Multiplex
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2022.02.17.
Experimental details: -log10(P Two-sided unpaired T-test (4 vs 4))
Number of measurements: 4
Measured pKd: 4.79
Experiment series 4
Protein A protein: KIAA0930
Protein A fragment: 284-293
Protein A site: 14-3-3_pSer289
Protein A modification: (SEP)289
Protein A sequence: RVTSFSTPPT
Protein A construct: biotin-ttds-RVTSF(pSer)TPPT (HPLC-purified synthetic peptide)
Protein B protein: SFN
Protein B fragment: 1-248
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3sigma
Measured dissociation constant (10-6M): 42
Standard deviation of dissociation constant (10-6M): 18
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit
Date of measurement: 2022.02.09
Number of measurements: 3
Measured pKd: 4.38