Details of experiments between the fragments P78352~306-403 and Q9NYB5~703-712
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: biotin-ttds-NYWPGKETQL

Measured dissociation constant (10-6M): 62.44
Standard deviation of dissociation constant (10-6M): 9.98
Experiment method: competitive FP
Details of affinity fitting: Competitive binding equation in ProFit

PUBMED ID of publication: 36115835
Number of measurements: 3
Measured pKd: 4.2


Experiment series 2

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: biotin-ttds-NYWPGKETQL

Average holdup BI: 0.12
Immobilized partner concentration in holdup experiment (10-6M): 5.5
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: 4.43


Experiment series 3

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: biotin-ttds-NYWPGKETQL

Average holdup BI: 0.12
Holdup BI standard deviation: 0.04
Normalized holdup BI: 0.14
Normalized holdup BI standard deviation: 0.05
Immobilized partner concentration in holdup experiment (10-6M): 11.3
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: 4
Measured pKd: 4.18


Experiment series 4

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: biotin-ttds-NYWPGKETQL

Average holdup BI: 0.09
Normalized holdup BI: 0.12
Immobilized partner concentration in holdup experiment (10-6M): 11.3
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: 4.08


Experiment series 5

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: biotin-ttds-NYWPGKETQL

Average holdup BI: 0.15
Normalized holdup BI: 0.17
Immobilized partner concentration in holdup experiment (10-6M): 11.3
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: 4.28


Experiment series 6

Protein A protein: DLG4
Protein A fragment: 306-403
Protein A site: PDZ_3
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: SLCO1C1
Protein B fragment: 703-712
Protein B site: PBM
Protein B sequence: NYWPGKETQL
Protein B construct: Biotin-ado-ado-NYWPGKETQL

Average holdup BI: 0.14
Normalized holdup BI: 0.16
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: 4.04