Docking pose detail

Molecular metrics status: done

RDKit SASA-based burial metrics are cached.

SASA cached

T17

T. brucei TR (Doorstop site) T. brucei Doorstop site

Ligand Z1552200029

PDB5S9T↗

3D complex viewer

Strict H-bonds Permissive H-bonds

Viewer legend

Protein receptor

Pocket residues

Cofactor context

Docked ligand

Overall assessment

Reject SASA cached

Promising but geometrically suspicious

Binding strong Geometry low Native strong SASA done

Strain ΔE

63.5 kcal/mol

Protein clashes

Internal clashes

Native overlap

contact recall 0.67, Jaccard 0.32, H-bond role recall 0.00

Burial

72%

Hydrophobic fit

78%

Reason: strain 63.5 kcal/mol

strain ΔE 63.5 kcal/mol 2 protein-contact clashes 76% of hydrophobic surface is solvent-exposed (31/41 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.

EcoTox / ADMET GDS: SAFE UL GreenDrugScore ML model

ECOscore

0.059

aquatic tox · BCF · biodeg.

GDS₃ (3-block)

0.332

ADMET + ECO + DL

ADMETscore (GDS)

0.322

absorption · distr. · metab.

DLscore

0.512

drug-likeness

P(SAFE)

0.85

GDS classification

ADMET alerts (in-silico)

hERG Low Ames Clear DILI Low

Molecular report

Full metrics ↗

Reject Multiple quality flags — this pose should be deprioritised or discarded.

✓ Good fit quality (FQ -1.94) ✓ Good H-bonds (5 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (63.5 kcal/mol) ✗ Low LE (-0.174 kcal/mol/HA) ✗ Geometry warnings ✗ Many internal clashes (16)

Score

-9.373

kcal/mol

-0.174

kcal/mol/HA

Fit Quality

-1.94

FQ (Leeson)

HAC

heavy atoms

765

LogP

3.25

cLogP

Final rank

4.8915

rank score

Inter norm

-0.498

normalised

Contacts

H-bonds 12

Strain ΔE

63.5 kcal/mol

SASA buried

72%

Lipo contact

78% BSA apolar/total

SASA unbound

1005 Å²

Apolar buried

564 Å²

Interaction summary

HBD 1 HBA 4 HY 7 PI 0 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference

Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.

Name	5S9T	Contacts	12
Pose	Open native pose	HB	0
IFP residues	ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap	8	Native recall	0.67
Jaccard	0.32	RMSD	-
HB strict	0	Strict recall	0.00
HB same residue+role	0	HB role recall	0.00
HB same residue	0	HB residue recall	0.00

Protein summary

1033 residues

Protein target	T17	Atoms	15160
Residues	1033	Chains	2
Residue summary	VAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0

Kept cofactors / ions

A:FAD501 B:FAD501

All stored poses for this docking hit

Pose	Final rank	Inter norm	Score	HB	CT	CT overlap	CT recall	HB role rec.	RMSD	Excluded
567	4.89153416457173	-0.497964	-9.37325	12	21	8	0.67	0.00	-	no	Current

Molecular metrics

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

✓ Metrics available

Scoring & efficiency

Docking score -9.373kcal/mol

Ligand efficiency (LE) -0.1736kcal/mol/HA

Score / heavy atom count

Fit quality (FQ) -1.937

LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe

Heavy atom count 54HA

Physicochemical properties

Molecular weight 765.0Da

Lipinski: ≤ 500 Da

LogP (cLogP) 3.25

Lipinski: ≤ 5

Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 63.45kcal/mol

< 5 good · 5–10 marginal · > 10 problematic

Docked FF energy 167.22kcal/mol

Minimised FF energy 103.77kcal/mol

SASA & burial

✓ computed

SASA (unbound) 1004.9Å²

Total solvent-accessible surface area of free ligand

BSA total 719.7Å²

Buried surface area upon binding

BSA apolar 563.8Å²

Hydrophobic contacts buried

BSA polar 155.9Å²

Polar contacts buried

Fraction buried 71.6%

> 60 % indicates good pocket engagement

Lipophilic contact ratio 78.3%

BSA apolar / BSA total — high = hydrophobic driver

Δ Non-polar SASA -6804.0Å²

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 8063.1Å²

Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)

Complex non-polar SASA 2062.6Å²

Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)