Details of experiments between the fragments Q96QZ7~456-580 and P06463~149-158
Note that the results of all experiments are listed, regardless of the modification states of the fragments.



Experiment series 1

Protein A protein: MAGI1
Protein A fragment: 456-580
Protein A site: PDZ_2
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: HPV18-E6
Protein B fragment: 149-158
Protein B site: PBM
Protein B sequence: RLQRRRETQV
Protein B construct: biotin-ttds-RLQRRRETQV

Measured dissociation constant (10-6M): 2.81
Standard deviation of dissociation constant (10-6M): 0.18
Experiment method: competitive FP
Details of affinity fitting: Competitive binding equation in ProFit

PUBMED ID of publication: 36115835
Number of measurements: 3
Measured pKd: 5.55


Experiment series 2

Protein A protein: MAGI1
Protein A fragment: 456-580
Protein A site: PDZ_2
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: HPV18-E6
Protein B fragment: 149-158
Protein B site: PBM
Protein B modification: (TPO)156
Protein B sequence: RLQRRRETQV
Protein B construct: Biotin-ttds-RLQRRREpTQV

Average holdup BI: -0.03
Normalized holdup BI: -0.03
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 3

Protein A protein: MAGI1
Protein A fragment: 456-580
Protein A site: PDZ_2
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: HPV18-E6
Protein B fragment: 149-158
Protein B site: PBM
Protein B sequence: RLQRRRETQV
Protein B construct: biotin-ttds-RLQRRRETQV

Average holdup BI: 0.86
Holdup BI standard deviation: 0.03
Normalized holdup BI: 0.97
Normalized holdup BI standard deviation: 0.03
Immobilized partner concentration in holdup experiment (10-6M): 43
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: 5.97


Experiment series 4

Protein A protein: MAGI1
Protein A fragment: 456-580
Protein A site: PDZ_2
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: HPV18-E6
Protein B fragment: 149-158
Protein B site: PBM
Protein B sequence: RLQRRRETQV
Protein B construct: biotin-ttds-RLQRRRETQV

Average holdup BI: 0.77
Normalized holdup BI: 0.93
Immobilized partner concentration in holdup experiment (10-6M): 43
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: 5.51


Experiment series 5

Protein A protein: MAGI1
Protein A fragment: 456-580
Protein A site: PDZ_2
Protein A construct: his6-MBP-TEVsite-PDZ

Protein B protein: HPV18-E6
Protein B fragment: 149-158
Protein B site: PBM
Protein B sequence: RLQRRRETQV
Protein B construct: biotin-ttds-RLQRRRETQV

Average holdup BI: 0.85
Normalized holdup BI: 0.95
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: not reported internal standards of holdup layout #6
PUBMED ID of publication: 36115835
Number of measurements: 1
Measured pKd: 6.1