STRUCTURAL BIOLOGY & CHEMICAL EVIDENCEDataset v1.2 · Phase 6D · Comparative experimental recognition environments

Published assay observation

BI-9321 and NSD3

PWWP:ASSAY:0008

direct binding affinity

Reported observation

SPR Kd

= 166.0 nM ± 3.0

Reported uncertainty: SD

Target domain
UP:Q9BZ95:PWWP1
Assay construct
263–398
Identity scope
exact single CCD identity

Evidence provenance

Primary source

PMID:31285596

SGC probe developer report: Overview

Verification scope
Phase 3 actual publisher Supplementary Table 7 and official Figure 3/4 captions; selected indexed accepted-manuscript Methods, full PDF unavailable (403); developer identity page
Assay and verification JSON

Field-level provenance

Assay conditions and source verification

Missing information is not proof of absence. The v1.2 source overlay separates not reported in inspected material, not inspected, not transcribed and not applicable.

FieldValue and source stateSource and interpretation
construct bounds{"end": 398, "numbering": "canonical inclusive", "start": 263}
verified
SV03B · NSD3-PWWP1 SPR Kd assay indexed primary passage
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

tagsGST fusion retained for assays according to the indexed protein purification paragraph
verified
SV03B · Protein production and purification, indexed primary passage

Tag status is supported at the general assay preparation level; no full PDF review. Do not use the 247–398 NMR construct.

Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

engineered mutationsnot inspected

Outside the source scope inspected for this field; no absence claim.

assay typeSPR Kd
verified
SV03A · Supplementary Table 7, PDF page 11
Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

temperature Cnot inspectedSV03B · Selected SPR Kd Methods passage

Whole primary Methods were unavailable. The temperature 25°C appears in a separate single-point screen immobilization paragraph and is not transferred to thisKd assay.

Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

buffer50 mM Tris; 150 mM NaCl; 1 mM TCEP; 0.005% Tween-20; 2% DMSO
verified
SV03B · NSD3-PWWP1 SPR Kd assay indexed primary passage
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

pH8.0
verified
SV03B · NSD3-PWWP1 SPR Kd assay indexed primary passage
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

DMSO percent2.0
verified
SV03B · NSD3-PWWP1 SPR Kd assay indexed primary passage
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

unitsnM
verified
SV03A · Supplementary Table 7, PDF page 11
Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

measurement uncertainty3.0
verified
SV03A · Supplementary Table 7, PDF page 11

Reported mean ± SD; central value unchanged.

Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

uncertainty typeSD
verified
SV03A · Supplementary Table 7, PDF page 11
Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

replicate definition{"figure_definition": "independent experiments", "publisher_figure_3a_n": 3, "summary": "mean \u00b1 SD", "supplementary_table_7_n": 4}
source conflict
SV03D · Figure 3a caption; compare SV03A Supplementary Table 7, PDF page 11

Both are actual primary publisher sources. The figure states three independent experiments while the supplementary table states SPR n=4. Neither count is silently preferred.

Inspected source scope

Actual official publisher figure page retrieved; Figure 3a caption inspected

measurement entityPREP:BI-9321
verified
SV03A · Supplementary Table 7, PDF page 11

The reported result belongs to this experimental preparation and construct; structural CCD membership alone cannot transfer affinity.

Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

concentration rangenot inspected

Outside the source scope inspected for this field; no absence claim.

incubation and flow{"immobilized_RU": "3000\u20134000", "instrument": "Biacore T200", "pre_equilibration": "several hours", "references": "carbonic anhydrase II and blank", "sensor": "CM5"}
verified
SV03B · SPR Kd assay, indexed primary passage
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

fittingGlobal fit of double-referenced association/dissociation or 1:1 steady-state responses; two flow-cell estimates averaged
verified
SV03B · SPR Kd assay and continuation, indexed primary passages
Inspected source scope

Selected indexed primary Methods passages inspected; direct PDF and repository page retrieval returned HTTP 403; not a complete full-text review

negative observationnot applicableSV03A · Supplementary Table 7, PDF page 11
Inspected source scope

Actual publisher supplement PDF; Table 7 visually inspected on PDF page 11

identity assignment{"ccd_id": "EJE", "chemical_id": "INCHIKEY:WOAOENGFAAUUGT-UHFFFAOYSA-N"}
verified
SV03C · Properties and existing CCD mapping
Inspected source scope

Primary developers confirm exact chemical identity, SPR value and U2OS NanoBRET endpoint

Structure → Component → Assay

Exact identity contact links

1 contact links

6G2O EJE

native annotation core contact

same exact chemical identity and native domain; construct equivalence not assumed