Details of experiments between the fragments P63104~1-245 and Q9Y2J2~396-405
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: EPB41L3
Protein B fragment: 396-405
Protein B site: 14-3-3_pThr401
Protein B modification: (TPO)401
Protein B sequence: PKKFLTLGSK
Protein B construct: PKKFL(pThr)LGSK (crude synthetic peptide)
Average holdup BI: 0.73
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): 7.82
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: 4.31
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: EPB41L3
Protein B fragment: 396-405
Protein B site: 14-3-3_pThr401
Protein B modification: (TPO)401
Protein B sequence: PKKFLTLGSK
Protein B construct: biotin-ttds-PKKFL(pThr)LGSK (HPLC-purified synthetic peptide)
Measured dissociation constant (10-6M): 30
Standard deviation of dissociation constant (10-6M): 0.6
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit
Date of measurement: 2022.01.19
Number of measurements: 3
Measured pKd: 4.52
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: EPB41L3
Protein B fragment: 396-405
Protein B site: 14-3-3_pThr401
Protein B modification: (TPO)401
Protein B sequence: PKKFLTLGSK
Protein B construct: biotin-ttds-PKKFL(pThr)LGSK (HPLC-purified synthetic peptide)
Measured dissociation constant (10-6M): 20
Standard deviation of dissociation constant (10-6M): 0.5
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit
Date of measurement: 2022.02.10
Number of measurements: 3
Measured pKd: 4.71