Details of experiments between  Q12802  and P31946  Note that the results of all experiments are listed, regardless of the modification states of the fragments.
   Experiment series 1 Protein A Protein: AKAP13  Fragment: 1221-1230  Site: 14-3-3_pSer1226  Modification: (SEP)1226  Sequence: SGRERSTPSL  Construct: SGRER(pSer)TPSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.13 
Holdup BI standard deviation:  0.06 
Immobilized partner concentration (10-6 M):  134 
P value:  2.35 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
    Experiment series 2 Protein A Protein: AKAP13  Fragment: 1221-1230  Site: 14-3-3_pSer1226  Modification: (SEP)1226  Sequence: SGRERSTPSL  Construct: SGRER(pSer)TPSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.11 
Holdup BI standard deviation:  0.05 
Immobilized partner concentration (10-6 M):  102 
P value:  2.64 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 3 Protein A Protein: AKAP13  Fragment: 1502-1511  Site: 14-3-3_pSer1507  Modification: (SEP)1507  Sequence: SRDRQSLDGF  Construct: SRDRQ(pSer)LDGF (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.25 
Holdup BI standard deviation:  0.05 
Immobilized partner concentration (10-6 M):  102 
P value:  4.28 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 3.52 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 4 Protein A Protein: AKAP13  Fragment: 1502-1511  Site: 14-3-3_pSer1507  Modification: (SEP)1507  Sequence: SRDRQSLDGF  Construct: SRDRQ(pSer)LDGF (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.28 
Holdup BI standard deviation:  0.03 
Immobilized partner concentration (10-6 M):  134 
P value:  5.4 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.46 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 5 Protein A Protein: AKAP13  Fragment: 1560-1569  Site: 14-3-3_pSer1565  Modification: (SEP)1565  Sequence: PFRRHSWGPG  Construct: PFRRH(pSer)WGPG (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.93 
Holdup BI standard deviation:  0.06 
Immobilized partner concentration (10-6 M):  134 
P value:  1.36 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 5.01 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 6 Protein A Protein: AKAP13  Fragment: 1597-1606  Site: 14-3-3_pSer1602  Modification: (SEP)1602  Sequence: HRRSFSLEGL  Construct: HRRSF(pSer)LEGL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Measured dissociation constant (10-6 M):  <100 
Immobilized partner concentration (10-6 M):  102 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  1 
Measured pK d : 4 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 7 Protein A Protein: AKAP13  Fragment: 1637-1646  Site: 14-3-3_pSer1642  Modification: (SEP)1642  Sequence: EERVDSLVSL  Construct: EERVD(pSer)LVSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  -0.02 
Holdup BI standard deviation:  0.16 
Immobilized partner concentration (10-6 M):  134 
P value:  0.1 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 8 Protein A Protein: AKAP13  Fragment: 1637-1646  Site: 14-3-3_pSer1642  Modification: (SEP)1642  Sequence: EERVDSLVSL  Construct: EERVD(pSer)LVSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  -0.04 
Holdup BI standard deviation:  0.16 
Immobilized partner concentration (10-6 M):  102 
P value:  0.2 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 9 Protein A Protein: AKAP13  Fragment: 1640-1649  Site: 14-3-3_pSer1645  Modification: (SEP)1645  Sequence: VDSLVSLSEE  Construct: VDSLV(pSer)LSEE (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.01 
Holdup BI standard deviation:  0.06 
Immobilized partner concentration (10-6 M):  134 
P value:  0.07 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 10 Protein A Protein: AKAP13  Fragment: 1640-1649  Site: 14-3-3_pSer1645  Modification: (SEP)1645  Sequence: VDSLVSLSEE  Construct: VDSLV(pSer)LSEE (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  -0.08 
Holdup BI standard deviation:  0.33 
Immobilized partner concentration (10-6 M):  102 
P value:  0.21 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 11 Protein A Protein: AKAP13  Fragment: 1745-1754  Site: 14-3-3_pSer1750  Modification: (SEP)1750  Sequence: VSRTFSYIKN  Construct: VSRTF(pSer)YIKN (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.34 
Holdup BI standard deviation:  0.1 
Immobilized partner concentration (10-6 M):  134 
P value:  3 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.58 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 12 Protein A Protein: AKAP13  Fragment: 1745-1754  Site: 14-3-3_pSer1750  Modification: (SEP)1750  Sequence: VSRTFSYIKN  Construct: VSRTF(pSer)YIKN (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.23 
Holdup BI standard deviation:  0.04 
Immobilized partner concentration (10-6 M):  102 
P value:  4.7 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 3.47 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 13 Protein A Protein: AKAP13  Fragment: 1871-1880  Site: 14-3-3_pSer1876  Modification: (SEP)1876  Sequence: KERPRSAVLL  Construct: KERPR(pSer)AVLL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.71 
Holdup BI standard deviation:  0.13 
Immobilized partner concentration (10-6 M):  134 
P value:  4.1 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 4.25 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 14 Protein A Protein: AKAP13  Fragment: 1871-1880  Site: 14-3-3_pSer1876  Modification: (SEP)1876  Sequence: KERPRSAVLL  Construct: KERPR(pSer)AVLL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.62 
Holdup BI standard deviation:  0.07 
Immobilized partner concentration (10-6 M):  102 
P value:  4.71 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 4.2 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 15 Protein A Protein: AKAP13  Fragment: 1890-1899  Site: 14-3-3_pSer1895  Modification: (SEP)1895  Sequence: FANRRSQQSV  Construct: FANRR(pSer)QQSV (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  -0.22 
Holdup BI standard deviation:  0.18 
Immobilized partner concentration (10-6 M):  134 
P value:  1.53 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 16 Protein A Protein: AKAP13  Fragment: 1890-1899  Site: 14-3-3_pSer1895  Modification: (SEP)1895  Sequence: FANRRSQQSV  Construct: FANRR(pSer)QQSV (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.1 
Holdup BI standard deviation:  0.19 
Immobilized partner concentration (10-6 M):  102 
P value:  0.5 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 17 Protein A Protein: AKAP13  Fragment: 1924-1933  Site: 14-3-3_pSer1929  Modification: (SEP)1929  Sequence: KFLSHSTDSL  Construct: KFLSH(pSer)TDSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.57 
Holdup BI standard deviation:  0.04 
Immobilized partner concentration (10-6 M):  102 
P value:  6.05 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 4.12 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 18 Protein A Protein: AKAP13  Fragment: 1924-1933  Site: 14-3-3_pSer1929  Modification: (SEP)1929  Sequence: KFLSHSTDSL  Construct: KFLSH(pSer)TDSL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.56 
Holdup BI standard deviation:  0.06 
Immobilized partner concentration (10-6 M):  134 
P value:  4.87 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.99 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 19 Protein A Protein: AKAP13  Fragment: 1927-1936  Site: 14-3-3_pSer1932  Modification: (SEP)1932  Sequence: SHSTDSLNKI  Construct: SHSTD(pSer)LNKI (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.04 
Holdup BI standard deviation:  0.19 
Immobilized partner concentration (10-6 M):  134 
P value:  0.15 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 20 Protein A Protein: AKAP13  Fragment: 1927-1936  Site: 14-3-3_pSer1932  Modification: (SEP)1932  Sequence: SHSTDSLNKI  Construct: SHSTD(pSer)LNKI (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.15 
Holdup BI standard deviation:  0.11 
Immobilized partner concentration (10-6 M):  102 
P value:  1.49 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 21 Protein A Protein: AKAP13  Fragment: 2468-2477  Site: 14-3-3_pSer2473  Modification: (SEP)2473  Sequence: FGGFDSHQMN  Construct: FGGFD(pSer)HQMN (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.25 
Holdup BI standard deviation:  0.22 
Immobilized partner concentration (10-6 M):  134 
P value:  1.01 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 22 Protein A Protein: AKAP13  Fragment: 2468-2477  Site: 14-3-3_pSer2473  Modification: (SEP)2473  Sequence: FGGFDSHQMN  Construct: FGGFD(pSer)HQMN (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.1 
Holdup BI standard deviation:  0.17 
Immobilized partner concentration (10-6 M):  102 
P value:  0.59 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 23 Protein A Protein: AKAP13  Fragment: 2493-2502  Site: 14-3-3_pSer2498  Modification: (SEP)2498  Sequence: LRRTESDSGL  Construct: LRRTE(pSer)DSGL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.41 
Holdup BI standard deviation:  0.04 
Immobilized partner concentration (10-6 M):  102 
P value:  5.82 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 3.83 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 24 Protein A Protein: AKAP13  Fragment: 2493-2502  Site: 14-3-3_pSer2498  Modification: (SEP)2498  Sequence: LRRTESDSGL  Construct: LRRTE(pSer)DSGL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.46 
Holdup BI standard deviation:  0.04 
Immobilized partner concentration (10-6 M):  134 
P value:  6.14 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.81 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 25 Protein A Protein: AKAP13  Fragment: 2558-2567  Site: 14-3-3_pSer2563  Modification: (SEP)2563  Sequence: LTRSLSRPSS  Construct: LTRSL(pSer)RPSS (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.3 
Holdup BI standard deviation:  0.08 
Immobilized partner concentration (10-6 M):  134 
P value:  3.33 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.51 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 26 Protein A Protein: AKAP13  Fragment: 2562-2571  Site: 14-3-3_pSer2567  Modification: (SEP)2567  Sequence: LSRPSSLIEQ  Construct: LSRPS(pSer)LIEQ (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.2 
Holdup BI standard deviation:  0.04 
Immobilized partner concentration (10-6 M):  134 
P value:  4.24 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 27 Protein A Protein: AKAP13  Fragment: 2562-2571  Site: 14-3-3_pSer2567  Modification: (SEP)2567  Sequence: LSRPSSLIEQ  Construct: LSRPS(pSer)LIEQ (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.21 
Holdup BI standard deviation:  0.09 
Immobilized partner concentration (10-6 M):  102 
P value:  2.44 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 28 Protein A Protein: AKAP13  Fragment: 2694-2703  Site: 14-3-3_pSer2699  Modification: (SEP)2699  Sequence: LMRIPSFFPS  Construct: LMRIP(pSer)FFPS (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.48 
Holdup BI standard deviation:  0.26 
Immobilized partner concentration (10-6 M):  134 
P value:  1.74 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 3.83 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 29 Protein A Protein: AKAP13  Fragment: 2694-2703  Site: 14-3-3_pSer2699  Modification: (SEP)2699  Sequence: LMRIPSFFPS  Construct: LMRIP(pSer)FFPS (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  -0.4 
Holdup BI standard deviation:  1.25 
Immobilized partner concentration (10-6 M):  102 
P value:  0.31 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 30 Protein A Protein: AKAP13  Fragment: 2406-2415  Site: 14-3-3_pThr2411  Modification: (TPO)2411  Sequence: LFRSNTEEAL  Construct: biotin-ttds-LFRSN(pThr)EEAL (HPLC-purified synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Measured dissociation constant (10-6 M):  698 
Standard deviation of dissociation constant (10-6 M):  343 
Experiment method:  competitive Fluorescence Polarization 
Details of affinity fitting:  Competitive binding equation in ProFit 
Date of measurement:  2022-02-08 
Number of measurements:  3 
Measured pK d : 3.16 
   Experiment series 31 Protein A Protein: AKAP13  Fragment: 2406-2415  Site: 14-3-3_pThr2411  Modification: (TPO)2411  Sequence: LFRSNTEEAL  Construct: LFRSN(pThr)EEAL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.21 
Holdup BI standard deviation:  0.05 
Immobilized partner concentration (10-6 M):  134 
P value:  3.62 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 32 Protein A Protein: AKAP13  Fragment: 2406-2415  Site: 14-3-3_pThr2411  Modification: (TPO)2411  Sequence: LFRSNTEEAL  Construct: LFRSN(pThr)EEAL (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.21 
Holdup BI standard deviation:  0.06 
Immobilized partner concentration (10-6 M):  102 
P value:  3.39 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
The affinity was below the detection threshold of the assay. 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
   Experiment series 33 Protein A Protein: AKAP13  Fragment: 2462-2471  Site: 14-3-3_pThr2467  Modification: (TPO)2467  Sequence: PRRAETFGGF  Construct: PRRAE(pThr)FGGF (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.98 
Holdup BI standard deviation:  0.01 
Immobilized partner concentration (10-6 M):  134 
P value:  5.63 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2022-02-17 
Number of measurements:  4 
Measured pK d : 5.67 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 4))
   Experiment series 34 Protein A Protein: AKAP13  Fragment: 2462-2471  Site: 14-3-3_pThr2467  Modification: (TPO)2467  Sequence: PRRAETFGGF  Construct: PRRAE(pThr)FGGF (crude synthetic peptide) 
Protein B Protein: YWHAB  Fragment: 1-246  Site: 14-3-3  Construct: avi-his6-MBP-TEVsite-14-3-3beta 
Average holdup BI:  0.97 
Holdup BI standard deviation:  0 
Immobilized partner concentration (10-6 M):  102 
P value:  7.52 
Experiment method:  HU Multiplex 
Details of affinity fitting:  hyperbolic binding equation 
Date of measurement:  2021-10-13 
Number of measurements:  5 
Measured pK d : 5.44 
Experimental Details -log10(P Two-sided unpaired T-test (4 vs 5))
    
 
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