FAIRMol

Z19651549

Pose ID 12746 Compound 1570 Pose 545

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand Z19651549
PDB2WOV

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native mixed SASA done
Strain ΔE
12.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.22, Jaccard 0.16, H-bond role recall 0.20
Burial
97%
Hydrophobic fit
69%
Reason: no major geometry red flags detected
2 protein-contact clashes 47% of hydrophobic surface appears solvent-exposed (7/15 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.483 kcal/mol/HA) ✓ Good fit quality (FQ -12.65) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (69%) ✗ Moderate strain (12.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-31.149
kcal/mol
LE
-1.483
kcal/mol/HA
Fit Quality
-12.65
FQ (Leeson)
HAC
21
heavy atoms
MW
301
Da
LogP
3.21
cLogP
Strain ΔE
12.9 kcal/mol
SASA buried
97%
Lipo contact
69% BSA apolar/total
SASA unbound
488 Ų
Apolar buried
327 Ų

Interaction summary

HB 11 HY 9 PI 0 CLASH 2 ⚠ Exposure 46%
⚠️Partial hydrophobic solvent exposure
47% of hydrophobic surface appears solvent-exposed (7/15 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 15 Buried (contacted) 8 Exposed 7 LogP 3.21 H-bonds 11
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank2.800Score-31.149
Inter norm-1.544Intra norm0.061
Top1000noExcludedno
Contacts17H-bonds11
Artifact reasongeometry warning; 7 clashes; 2 protein clashes; 1 severe cofactor-context clash
Residues
ARG287 ASP327 CYS52 CYS57 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 SER162 SER178 THR335 THR51 VAL55

Protein summary

493 residues
Protein targetT19Atoms7541
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:330; TYR:294; ASP:264; MET:221

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
C:NDP800

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap6Native recall0.22
Jaccard0.16RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
551 -0.10966209886901078 -1.29964 -25.3355 2 13 0 0.00 0.00 - no Open
532 1.0046581056658084 -1.50673 -28.6964 8 13 0 0.00 0.00 - no Open
558 1.8507984583927155 -0.895968 -16.1192 6 7 0 0.00 0.00 - no Open
548 2.3499413020302247 -1.40164 -21.5647 7 21 0 0.00 0.00 - no Open
536 2.4750002428206046 -1.35939 -27.4286 11 16 0 0.00 0.00 - no Open
542 2.63527126834114 -1.20429 -22.2029 6 11 0 0.00 0.00 - no Open
545 2.800134034659489 -1.54392 -31.1493 11 17 6 0.22 0.20 - no Current
541 3.544151329633376 -1.50159 -24.6005 12 18 0 0.00 0.00 - no Open
539 4.324614488326156 -1.4057 -25.737 10 16 0 0.00 0.00 - no Open
565 4.84275437333706 -1.34595 -23.6881 11 16 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -31.149kcal/mol
Ligand efficiency (LE) -1.4833kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.652
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 301.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.93kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 33.00kcal/mol
Minimised FF energy 20.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 488.4Ų
Total solvent-accessible surface area of free ligand
BSA total 473.1Ų
Buried surface area upon binding
BSA apolar 327.1Ų
Hydrophobic contacts buried
BSA polar 146.0Ų
Polar contacts buried
Fraction buried 96.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 69.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2930.7Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1471.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)