Details of experiments between Q5VZ89 and P62258
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: DENND4C
Protein A fragment: 1657-1666
Protein A site: 14-3-3_pSer1662
Protein A modification: (SEP)1662
Protein A sequence: GISTVSLPNS
Protein A construct: GISTV(pSer)LPNS (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.53
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.94
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 2

Protein A protein: DENND4C
Protein A fragment: 1320-1329
Protein A site: 14-3-3_pSer1325
Protein A modification: (SEP)1325
Protein A sequence: KERSTSLSAL
Protein A construct: KERST(pSer)LSAL (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.57
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.88
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 3

Protein A protein: DENND4C
Protein A fragment: 1320-1329
Protein A site: 14-3-3_pSer1325
Protein A modification: (SEP)1325
Protein A sequence: KERSTSLSAL
Protein A construct: KERST(pSer)LSAL (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.64
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.75
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: 4.09


Experiment series 4

Protein A protein: DENND4C
Protein A fragment: 1618-1627
Protein A site: 14-3-3_pSer1623
Protein A modification: (SEP)1623
Protein A sequence: TMKISSVPNS
Protein A construct: TMKIS(pSer)VPNS (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.35
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 143
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: 3.57


Experiment series 5

Protein A protein: DENND4C
Protein A fragment: 1657-1666
Protein A site: 14-3-3_pSer1662
Protein A modification: (SEP)1662
Protein A sequence: GISTVSLPNS
Protein A construct: GISTV(pSer)LPNS (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.49
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 6.28
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
Measured pKd: 3.93


Experiment series 6

Protein A protein: DENND4C
Protein A fragment: 1273-1282
Protein A site: 14-3-3_pSer1278
Protein A modification: (SEP)1278
Protein A sequence: LERRSSLPLD
Protein A construct: LERRS(pSer)LPLD (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.24
Holdup BI standard deviation: 0.04
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 4.65
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
Measured pKd: 3.34


Experiment series 7

Protein A protein: DENND4C
Protein A fragment: 1273-1282
Protein A site: 14-3-3_pSer1278
Protein A modification: (SEP)1278
Protein A sequence: LERRSSLPLD
Protein A construct: LERRS(pSer)LPLD (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.18
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 4.44
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: DENND4C
Protein A fragment: 1635-1644
Protein A site: 14-3-3_pSer1640
Protein A modification: (SEP)1640
Protein A sequence: LTRSHSVGGP
Protein A construct: LTRSH(pSer)VGGP (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.25
Holdup BI standard deviation: 0.08
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 3.16
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: DENND4C
Protein A fragment: 1618-1627
Protein A site: 14-3-3_pSer1623
Protein A modification: (SEP)1623
Protein A sequence: TMKISSVPNS
Protein A construct: TMKIS(pSer)VPNS (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.39
Holdup BI standard deviation: 0.13
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.8
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: 3.74


Experiment series 10

Protein A protein: DENND4C
Protein A fragment: 1635-1644
Protein A site: 14-3-3_pSer1640
Protein A modification: (SEP)1640
Protein A sequence: LTRSHSVGGP
Protein A construct: LTRSH(pSer)VGGP (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.42
Holdup BI standard deviation: 0.2
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.41
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: 3.71


Experiment series 11

Protein A protein: DENND4C
Protein A fragment: 1179-1188
Protein A site: 14-3-3_pSer1184
Protein A modification: (SEP)1184
Protein A sequence: RNKRSSLYGI
Protein A construct: RNKRS(pSer)LYGI (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.16
Holdup BI standard deviation: 0.07
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 2.38
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: 3.12


Experiment series 12

Protein A protein: DENND4C
Protein A fragment: 1179-1188
Protein A site: 14-3-3_pSer1184
Protein A modification: (SEP)1184
Protein A sequence: RNKRSSLYGI
Protein A construct: RNKRS(pSer)LYGI (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.14
Holdup BI standard deviation: 0.08
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.83
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: DENND4C
Protein A fragment: 960-969
Protein A site: 14-3-3_pSer965
Protein A modification: (SEP)965
Protein A sequence: IVAKHSQPSP
Protein A construct: IVAKH(pSer)QPSP (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.17
Holdup BI standard deviation: 0.12
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.67
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: DENND4C
Protein A fragment: 1341-1350
Protein A site: 14-3-3_pSer1346
Protein A modification: (SEP)1346
Protein A sequence: VVNSLSGLKL
Protein A construct: VVNSL(pSer)GLKL (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.25
Holdup BI standard deviation: 0.24
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.63
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 15

Protein A protein: DENND4C
Protein A fragment: 948-957
Protein A site: 14-3-3_pSer953
Protein A modification: (SEP)953
Protein A sequence: LIRLESIDNH
Protein A construct: LIRLE(pSer)IDNH (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.25
Holdup BI standard deviation: 0.18
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.55
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 16

Protein A protein: DENND4C
Protein A fragment: 1341-1350
Protein A site: 14-3-3_pSer1346
Protein A modification: (SEP)1346
Protein A sequence: VVNSLSGLKL
Protein A construct: VVNSL(pSer)GLKL (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.31
Holdup BI standard deviation: 0.24
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 1.53
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 17

Protein A protein: DENND4C
Protein A fragment: 948-957
Protein A site: 14-3-3_pSer953
Protein A modification: (SEP)953
Protein A sequence: LIRLESIDNH
Protein A construct: LIRLE(pSer)IDNH (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.08
Holdup BI standard deviation: 0.11
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.83
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 18

Protein A protein: DENND4C
Protein A fragment: 1094-1103
Protein A site: 14-3-3_pSer1099
Protein A modification: (SEP)1099
Protein A sequence: IARTHSFENV
Protein A construct: IARTH(pSer)FENV (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.05
Holdup BI standard deviation: 0.1
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.43
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 19

Protein A protein: DENND4C
Protein A fragment: 1661-1670
Protein A site: 14-3-3_pSer1666
Protein A modification: (SEP)1666
Protein A sequence: VSLPNSLQEV
Protein A construct: VSLPN(pSer)LQEV (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.13
Holdup BI standard deviation: 0.5
Immobilized partner concentration in holdup experiment (10-6M): 116
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.19
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 20

Protein A protein: DENND4C
Protein A fragment: 1661-1670
Protein A site: 14-3-3_pSer1666
Protein A modification: (SEP)1666
Protein A sequence: VSLPNSLQEV
Protein A construct: VSLPN(pSer)LQEV (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0.03
Holdup BI standard deviation: 0.15
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.19
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 21

Protein A protein: DENND4C
Protein A fragment: 960-969
Protein A site: 14-3-3_pSer965
Protein A modification: (SEP)965
Protein A sequence: IVAKHSQPSP
Protein A construct: IVAKH(pSer)QPSP (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: -0.04
Holdup BI standard deviation: 0.18
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.19
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 22

Protein A protein: DENND4C
Protein A fragment: 1094-1103
Protein A site: 14-3-3_pSer1099
Protein A modification: (SEP)1099
Protein A sequence: IARTHSFENV
Protein A construct: IARTH(pSer)FENV (crude synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Average holdup BI: 0
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 143
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 0.06
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 23

Protein A protein: DENND4C
Protein A fragment: 1320-1329
Protein A site: 14-3-3_pSer1325
Protein A modification: (SEP)1325
Protein A sequence: KERSTSLSAL
Protein A construct: biotin-ttds-KERST(pSer)LSAL (HPLC-purified synthetic peptide)

Protein B protein: YWHAE
Protein B fragment: 1-255
Protein B site: 14-3-3
Protein B construct: avi-his6-MBP-TEVsite-14-3-3epsilon

Measured dissociation constant (10-6M): 89
Standard deviation of dissociation constant (10-6M): 11
Experiment method: competitive Fluorescence Polarization
Details of affinity fitting: Competitive binding equation in ProFit

Date of measurement: 2022.02.09
Number of measurements: 3
Measured pKd: 4.05