Details of experiments between P31947 and Q96FS4
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 903-912
Protein B site: 14-3-3_pSer908
Protein B modification: (SEP)908
Protein B sequence: LPRTLSLRNS
Protein B construct: LPRTL(pSer)LRNS (crude synthetic peptide)

Average holdup BI: 0.27
Holdup BI standard deviation: 0.05
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): 3.54
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: 3.52


Experiment series 2

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 903-912
Protein B site: 14-3-3_pSer908
Protein B modification: (SEP)908
Protein B sequence: LPRTLSLRNS
Protein B construct: LPRTL(pSer)LRNS (crude synthetic peptide)

Average holdup BI: 0.26
Holdup BI standard deviation: 0.11
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): 2.6
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: 3.39


Experiment series 3

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 903-912
Protein B site: 14-3-3_pSer908
Protein B modification: (SEP)908
Protein B sequence: LPRTLSLRNS
Protein B construct: LPRTL(pSer)LRNS (crude synthetic peptide)

Average holdup BI: 0.22
Holdup BI standard deviation: 0.1
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): 2.01
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: 3.41


Experiment series 4

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 554-563
Protein B site: 14-3-3_pSer559
Protein B modification: (SEP)559
Protein B sequence: RFGLPSLGGR
Protein B construct: RFGLP(pSer)LGGR (crude synthetic peptide)

Average holdup BI: -0.42
Holdup BI standard deviation: 0.33
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): 1.88
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: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 675-684
Protein B site: 14-3-3_pSer680
Protein B modification: (SEP)680
Protein B sequence: RLQLVSRGCE
Protein B construct: RLQLV(pSer)RGCE (crude synthetic peptide)

Average holdup BI: 0.08
Holdup BI standard deviation: 0.07
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): 0.71
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 6

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 675-684
Protein B site: 14-3-3_pSer680
Protein B modification: (SEP)680
Protein B sequence: RLQLVSRGCE
Protein B construct: RLQLV(pSer)RGCE (crude synthetic peptide)

Average holdup BI: 0.09
Holdup BI standard deviation: 0.12
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): 0.65
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 7

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 50-59
Protein B site: 14-3-3_pSer55
Protein B modification: (SEP)55
Protein B sequence: LLRSGSDAGE
Protein B construct: LLRSG(pSer)DAGE (crude synthetic peptide)

Average holdup BI: -0.12
Holdup BI standard deviation: 0.25
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): 0.6
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
The affinity was below the detection threshold of the assay.


Experiment series 8

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 832-841
Protein B site: 14-3-3_pSer837
Protein B modification: (SEP)837
Protein B sequence: LHSQNSLSPR
Protein B construct: LHSQN(pSer)LSPR (crude synthetic peptide)

Average holdup BI: -0.08
Holdup BI standard deviation: 0.19
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): 0.37
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 9

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 554-563
Protein B site: 14-3-3_pSer559
Protein B modification: (SEP)559
Protein B sequence: RFGLPSLGGR
Protein B construct: RFGLP(pSer)LGGR (crude synthetic peptide)

Average holdup BI: -0.07
Holdup BI standard deviation: 0.2
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): 0.32
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 10

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 50-59
Protein B site: 14-3-3_pSer55
Protein B modification: (SEP)55
Protein B sequence: LLRSGSDAGE
Protein B construct: LLRSG(pSer)DAGE (crude synthetic peptide)

Average holdup BI: 0.02
Holdup BI standard deviation: 0.05
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): 0.29
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 11

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 50-59
Protein B site: 14-3-3_pSer55
Protein B modification: (SEP)55
Protein B sequence: LLRSGSDAGE
Protein B construct: LLRSG(pSer)DAGE (crude synthetic peptide)

Average holdup BI: 0.01
Holdup BI standard deviation: 0.02
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): 0.28
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 12

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 832-841
Protein B site: 14-3-3_pSer837
Protein B modification: (SEP)837
Protein B sequence: LHSQNSLSPR
Protein B construct: LHSQN(pSer)LSPR (crude synthetic peptide)

Average holdup BI: -0.04
Holdup BI standard deviation: 0.12
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): 0.27
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 13

Protein A protein: SFN
Protein A fragment: 1-248
Protein A site: 14-3-3
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: SIPA1
Protein B fragment: 832-841
Protein B site: 14-3-3_pSer837
Protein B modification: (SEP)837
Protein B sequence: LHSQNSLSPR
Protein B construct: LHSQN(pSer)LSPR (crude synthetic peptide)

Average holdup BI: 0.02
Holdup BI standard deviation: 0.08
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): 0.27
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.