Details of experiments between Q14155 and Q8WXE0
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: avi(biotin)-his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 1-1202
Protein B construct: endogenous protein (Jurkat)

Average holdup BI: 0.55
Immobilized partner concentration in holdup experiment (10-6M): 10
P value (usually -log10(P Two-sided unpaired T-test), but double check the experimental details): 3.28
Experiment method: nHU_Jurkat
Details of affinity fitting: hyperbolic binding equation
Date of measurement: 2022.06.29.
Experimental details: -log10(P Two-sided unpaired T-test (6 vs 3))
Number of measurements: 3
Measured pKd: 5.09


Experiment series 2

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 1121-1135
Protein B site: PxxP_1
Protein B sequence: PRLGPRPVPPPRPES
Protein B construct: Bio Ado Ado-PRLGPRPVPPPRPES-CONH2

Average holdup BI: 0.13
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 3.93


Experiment series 3

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 683-697
Protein B site: PxxP_2
Protein B sequence: GGPEPLPLPPARSPS
Protein B construct: Bio Ado Ado-GGPEPLPLPPARSPS-CONH2

Average holdup BI: 0.07
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 3.65


Experiment series 4

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 782-796
Protein B site: PxxP_3
Protein B sequence: AGPPATPPDPPRPKR
Protein B construct: Bio Ado Ado-AGPPATPPDPPRPKR-CONH2

Average holdup BI: 0.06
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 3.55


Experiment series 5

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 785-799
Protein B site: PxxP_4
Protein B sequence: PATPPDPPRPKRRSH
Protein B construct: Bio Ado Ado-PATPPDPPRPKRRSH-CONH2

Average holdup BI: 0.12
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 3.88


Experiment series 6

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 862-876
Protein B site: PxxP_5
Protein B sequence: RARRKGPPPPPPKRL
Protein B construct: Bio Ado Ado-RARRKGPPPPPPKRL-CONH2

Average holdup BI: 0.28
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 4.36


Experiment series 7

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 863-877
Protein B site: PxxP_6
Protein B sequence: ARRKGPPPPPPKRLS
Protein B construct: Bio Ado Ado-ARRKGPPPPPPKRLS-CONH2

Average holdup BI: 0.21
Holdup BI standard deviation: 0
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 2
Measured pKd: 4.19


Experiment series 8

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 864-878
Protein B site: PxxP_7
Protein B sequence: RRKGPPPPPPKRLSS
Protein B construct: Bio Ado Ado-RRKGPPPPPPKRLSS-CONH2

Average holdup BI: 0.2
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
Measured pKd: 4.15


Experiment series 9

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 960-974
Protein B site: PxxP_8
Protein B sequence: IKQRPKPAGPPPRET
Protein B construct: Bio Ado Ado-IKQRPKPAGPPPRET-CONH2

Average holdup BI: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
The affinity was below the detection threshold of the assay.


Experiment series 10

Protein A protein: ARHGEF7
Protein A fragment: 178-251
Protein A site: SH3
Protein A construct: his6-MBP-TEVsite-SH3

Protein B protein: CASKIN2
Protein B fragment: 969-983
Protein B site: PxxP_9
Protein B sequence: PPPRETPVPPGLDFN
Protein B construct: Bio Ado Ado-PPPRETPVPPGLDFN-CONH2

Average holdup BI: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Details of affinity fitting: Quadratic binding equation
Date of measurement: 2023/01/17
Number of measurements: 1
The affinity was below the detection threshold of the assay.