Details of experiments between the fragments Q8IYB3~327-341 and O00499~513-593
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.68
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.06.29.
Number of measurements: 2
Measured pKd: 5.15


Experiment series 2

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: T532M
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.64
Holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.06.29.
Number of measurements: 2
Measured pKd: 5.05


Experiment series 3

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: D537V
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.1
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 3.78


Experiment series 4

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: F584S
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: -0.01
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
The affinity was below the detection threshold of the assay.


Experiment series 5

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: P551L
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.3
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 6
Experiment method: HU (DAPF)
Details of affinity fitting: Bait concentration was adjusted to fit the profile to WT
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.92


Experiment series 6

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: Q540H
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.6
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.98


Experiment series 7

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: T532M
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.55
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.89


Experiment series 8

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: V566M
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.54
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.87


Experiment series 9

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: V583I
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.35
Holdup BI standard deviation: 0
Immobilized partner concentration in holdup experiment (10-6M): 9
Experiment method: HU (DAPF)
Details of affinity fitting: Bait concentration was adjusted to fit the profile to WT
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.86


Experiment series 10

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.55
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.88


Experiment series 11

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: Y531S
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.17
Holdup BI standard deviation: 0.01
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: HU (DAPF)
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.08


Experiment series 12

Protein A protein: SRRM1
Protein A fragment: 327-341
Protein A site: PxxP_1
Protein A sequence: TPPRRMPPPPRHRRS
Protein A construct: Biotinylated 15-mer peptide (crude)

Protein B protein: BIN1
Protein B fragment: 513-593
Protein B site: SH3
Protein B modification: R581C
Protein B construct: avi(biotin)-his6-MBP-TEVsite-SH3

Average holdup BI: 0.32
Holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 6
Experiment method: HU (DAPF)
Details of affinity fitting: Bait concentration was adjusted to fit the profile to WT
Date of measurement: 2022.10.24.
Number of measurements: 2
Measured pKd: 4.97