Details of experiments between the fragments Q5T2W1~2-107 and A6NIM6~570-579
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: NHERF3
Protein A fragment: 2-107
Protein A site: PDZ_1
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLC15A5
Protein B fragment: 570-579
Protein B site: PBM
Protein B sequence: SSIDLWETAL
Protein B construct: biotin-ttds-SSIDLWETAL

Average holdup BI: 0.8
Immobilized partner concentration in holdup experiment (10-6M): 3.5
Experiment method: SAPF_holdup
Details of affinity fitting: fluorescein + mCherry internal standards + normal layout
PUBMED ID of publication: 36115835
Number of measurements: 1
Measured pKd: 7.11


Experiment series 2

Protein A protein: NHERF3
Protein A fragment: 2-107
Protein A site: PDZ_1
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLC15A5
Protein B fragment: 570-579
Protein B site: PBM
Protein B sequence: SSIDLWETAL
Protein B construct: biotin-ttds-SSIDLWETAL

Average holdup BI: 0.87
Holdup BI standard deviation: 0.04
Normalized holdup BI: 0.93
Normalized holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 11
Experiment method: DAPF_holdup
Details of affinity fitting: fluorescein + mCherry internal standards + normalization based on CALIP_holdup data + reverse layout
PUBMED ID of publication: 36115835
Number of measurements: 2
Measured pKd: 6.25


Experiment series 3

Protein A protein: NHERF3
Protein A fragment: 2-107
Protein A site: PDZ_1
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLC15A5
Protein B fragment: 570-579
Protein B site: PBM
Protein B sequence: SSIDLWETAL
Protein B construct: biotin-ttds-SSIDLWETAL

Average holdup BI: 0.8
Normalized holdup BI: 0.88
Immobilized partner concentration in holdup experiment (10-6M): 11
Experiment method: DAPF_holdup
Details of affinity fitting: fluorescein + mCherry internal standards + normalization based on CALIP_holdup data + reverse layout
Experimental details: not reported internal standards of holdup layout #5
Number of measurements: 1
Measured pKd: 5.99


Experiment series 4

Protein A protein: NHERF3
Protein A fragment: 2-107
Protein A site: PDZ_1
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLC15A5
Protein B fragment: 570-579
Protein B site: PBM
Protein B sequence: SSIDLWETAL
Protein B construct: Biotin-ado-ado-SSIDLWETAL

Average holdup BI: 0.87
Normalized holdup BI: 0.92
Immobilized partner concentration in holdup experiment (10-6M): 18
Experiment method: DAPF_holdup
Details of affinity fitting: fluorescein + mCherry internal standards + normalization based on CALIP_holdup data + reverse layout
Experimental details: Crude peptide synthesis product. The peptide concentration in the affinity conversion step may differ from reality. Not reported internal standards of holdup layout #6
PUBMED ID of publication: 36115835
Number of measurements: 1
Measured pKd: 5.89