Details of experiments between the fragments O43166~1399-1408 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: SIPA1L1
Protein A fragment: 1399-1408
Protein A site: 14-3-3_pSer1404
Protein A modification: (SEP)1404
Protein A sequence: KSQAGSTPLT
Protein A construct: KSQAG(pSer)TPLT (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: 0.34
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 134
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 8.34
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
The affinity was below the detection threshold of the assay.
Experiment series 2
Protein A protein: SIPA1L1
Protein A fragment: 1399-1408
Protein A site: 14-3-3_pSer1404
Protein A modification: (SEP)1404
Protein A sequence: KSQAGSTPLT
Protein A construct: KSQAG(pSer)TPLT (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: 0.37
Holdup BI standard deviation: 0.03
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): 6.6
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 3
Protein A protein: SIPA1L1
Protein A fragment: 1399-1408
Protein A site: 14-3-3_pSer1404
Protein A modification: (SEP)1404
Protein A sequence: KSQAGSTPLT
Protein A construct: KSQAG(pSer)TPLT (crude synthetic peptide)
Protein B protein: YWHAG
Protein B fragment: 1-247
Protein B site: 14-3-3
Protein B modification: 100_uM_FCA
Protein B construct: avi-his6-MBP-TEVsite-14-3-3gamma
Average holdup BI: 0.28
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 115
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 5.09
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: 3.55