Details of experiments between P31947 and Q53ET0
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: CRTC2
Protein B fragment: 166-175
Protein B site: 14-3-3_pSer171
Protein B modification: (SEP)171
Protein B sequence: LNRTSSDSAL
Protein B construct: LNRTS(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.29
Holdup BI standard deviation: 0.01
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): 7.92
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: 3.57


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: CRTC2
Protein B fragment: 166-175
Protein B site: 14-3-3_pSer171
Protein B modification: (SEP)171
Protein B sequence: LNRTSSDSAL
Protein B construct: LNRTS(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.21
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): 5.6
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: 3.37


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: CRTC2
Protein B fragment: 122-131
Protein B site: 14-3-3_pSer127
Protein B modification: (SEP)127
Protein B sequence: TRHIDSSPYS
Protein B construct: TRHID(pSer)SPYS (crude synthetic peptide)

Average holdup BI: 0.19
Holdup BI standard deviation: 0.05
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): 3.65
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 4

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: CRTC2
Protein B fragment: 122-131
Protein B site: 14-3-3_pSer127
Protein B modification: (SEP)127
Protein B sequence: TRHIDSSPYS
Protein B construct: TRHID(pSer)SPYS (crude synthetic peptide)

Average holdup BI: 0.14
Holdup BI standard deviation: 0.03
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): 3.53
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 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: CRTC2
Protein B fragment: 65-74
Protein B site: 14-3-3_pSer70
Protein B modification: (SEP)70
Protein B sequence: SHYGGSLPNV
Protein B construct: SHYGG(pSer)LPNV (crude synthetic peptide)

Average holdup BI: 0.53
Holdup BI standard deviation: 0.17
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): 3.32
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: 3.9


Experiment series 6

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: CRTC2
Protein B fragment: 166-175
Protein B site: 14-3-3_pSer171
Protein B modification: (SEP)171
Protein B sequence: LNRTSSDSAL
Protein B construct: LNRTS(pSer)DSAL (crude synthetic peptide)

Average holdup BI: 0.21
Holdup BI standard deviation: 0.09
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): 2.35
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 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: CRTC2
Protein B fragment: 122-131
Protein B site: 14-3-3_pSer127
Protein B modification: (SEP)127
Protein B sequence: TRHIDSSPYS
Protein B construct: TRHID(pSer)SPYS (crude synthetic peptide)

Average holdup BI: 0.13
Holdup BI standard deviation: 0.05
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): 2.18
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 8

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: CRTC2
Protein B fragment: 65-74
Protein B site: 14-3-3_pSer70
Protein B modification: (SEP)70
Protein B sequence: SHYGGSLPNV
Protein B construct: SHYGG(pSer)LPNV (crude synthetic peptide)

Average holdup BI: 0.57
Holdup BI standard deviation: 0.34
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): 1.65
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
Measured pKd: 4.06


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: CRTC2
Protein B fragment: 159-168
Protein B site: 14-3-3_pSer164
Protein B modification: (SEP)164
Protein B sequence: LFRLPSALNR
Protein B construct: LFRLP(pSer)ALNR (crude synthetic peptide)

Average holdup BI: -0.2
Holdup BI standard deviation: 0.26
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): 0.82
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 construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: CRTC2
Protein B fragment: 442-451
Protein B site: 14-3-3_pSer447
Protein B modification: (SEP)447
Protein B sequence: ADARRSQQQL
Protein B construct: ADARR(pSer)QQQL (crude synthetic peptide)

Average holdup BI: -0.49
Holdup BI standard deviation: 0.75
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): 0.68
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: CRTC2
Protein B fragment: 487-496
Protein B site: 14-3-3_pSer492
Protein B modification: (SEP)492
Protein B sequence: PYSSPSLVLP
Protein B construct: PYSSP(pSer)LVLP (crude synthetic peptide)

Average holdup BI: 0.12
Holdup BI standard deviation: 0.18
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): 0.62
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 modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: CRTC2
Protein B fragment: 442-451
Protein B site: 14-3-3_pSer447
Protein B modification: (SEP)447
Protein B sequence: ADARRSQQQL
Protein B construct: ADARR(pSer)QQQL (crude synthetic peptide)

Average holdup BI: -0.43
Holdup BI standard deviation: 0.83
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): 0.54
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
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 modification: 100_uM_FCA
Protein A construct: avi-his6-MBP-TEVsite-14-3-3sigma

Protein B protein: CRTC2
Protein B fragment: 487-496
Protein B site: 14-3-3_pSer492
Protein B modification: (SEP)492
Protein B sequence: PYSSPSLVLP
Protein B construct: PYSSP(pSer)LVLP (crude synthetic peptide)

Average holdup BI: -0.05
Holdup BI standard deviation: 0.13
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): 0.35
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 14

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: CRTC2
Protein B fragment: 487-496
Protein B site: 14-3-3_pSer492
Protein B modification: (SEP)492
Protein B sequence: PYSSPSLVLP
Protein B construct: PYSSP(pSer)LVLP (crude synthetic peptide)

Average holdup BI: 0.03
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): 0.07
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.