Details of experiments between the fragments Q9NZW5~126-208 and Q15418~725-735
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B modification: (SEP)732
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPpSTTL

Average holdup BI: 0.01
Holdup BI standard deviation: 0.06
Immobilized partner concentration in holdup experiment (10-6M): 40
Experiment method: CALIP_holdup
Details of affinity fitting: BSA and lysozyme internal standards + bacterial cell lysate + normal layout
PUBMED ID of publication: 36115835
Number of measurements: 3
The affinity was below the detection threshold of the assay.


Experiment series 2

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPSTTL

Average holdup BI: 0.01
Holdup BI standard deviation: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 31
Experiment method: CALIP_holdup
Details of affinity fitting: BSA and lysozyme internal standards + bacterial cell lysate + normal layout
PUBMED ID of publication: 36115835
Number of measurements: 4
The affinity was below the detection threshold of the assay.


Experiment series 3

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B modification: (SEP)732
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPpSTTL

Average holdup BI: -0.12
Normalized holdup BI: -0.12
Immobilized partner concentration in holdup experiment (10-6M): 15
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: 1
The affinity was below the detection threshold of the assay.


Experiment series 4

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B modification: (TPO)733
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPSpTTL

Average holdup BI: 0.04
Normalized holdup BI: 0.04
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
PUBMED ID of publication: 36115835
Number of measurements: 1
The affinity was below the detection threshold of the assay.


Experiment series 5

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B modification: (TPO)734
Protein B sequence: RVRKLPSTTL
Protein B construct: Biotin-ttds-RRVRKLPSTpTL

Average holdup BI: 0.02
Normalized holdup BI: 0.02
Immobilized partner concentration in holdup experiment (10-6M): 25
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: 1
The affinity was below the detection threshold of the assay.


Experiment series 6

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPSTTL

Average holdup BI: 0.09
Normalized holdup BI: 0.09
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
PUBMED ID of publication: 36115835
Number of measurements: 1
Measured pKd: 3.73


Experiment series 7

Protein A protein: MPP6
Protein A fragment: 126-208
Protein A site: PDZ
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: RPS6KA1
Protein B fragment: 725-735
Protein B site: PBM
Protein B modification: (SEP)732
Protein B sequence: RVRKLPSTTL
Protein B construct: biotin-ttds-RRVRKLPpSTTL

Average holdup BI: 0.06
Normalized holdup BI: 0.06
Immobilized partner concentration in holdup experiment (10-6M): 15
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: 3.66