Details of experiments between the fragments Q9UQC2~207-216 and P61981~1-247
Note that the results of all experiments are listed, regardless of the modification states of the fragments.
Experiment series 1
Protein A protein: GAB2
Protein A fragment: 207-216
Protein A site: 14-3-3_pSer212
Protein A modification: (SEP)212
Protein A sequence: RSASFSQGTR
Protein A construct: RSASF(pSer)QGTR (crude synthetic peptide)
Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma
Average holdup BI: 0.63
Holdup BI standard deviation: 0.07
Immobilized partner concentration in holdup experiment (10-6M): 129
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.91
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: 4.12
Experiment series 2
Protein A protein: GAB2
Protein A fragment: 207-216
Protein A site: 14-3-3_pSer212
Protein A modification: (SEP)212
Protein A sequence: RSASFSQGTR
Protein A construct: biotin-ttds-RSASF(pSer)QGTR (HPLC-purified synthetic peptide)
Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma
Measured dissociation constant (10-6M): 69
Standard deviation of dissociation constant (10-6M): 8.6
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit
Date of measurement: 2022.01.18
Number of measurements: 3
Measured pKd: 4.16
Experiment series 3
Protein A protein: GAB2
Protein A fragment: 207-216
Protein A site: 14-3-3_pSer212
Protein A modification: (SEP)212
Protein A sequence: RSASFSQGTR
Protein A construct: biotin-ttds-RSASF(pSer)QGTR (HPLC-purified synthetic peptide)
Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma
Measured dissociation constant (10-6M): 54
Standard deviation of dissociation constant (10-6M): 7
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit
Date of measurement: 2022.01.10
Number of measurements: 3
Measured pKd: 4.27