Docking pose detail

Molecular metrics status: done

RDKit SASA-based burial metrics are cached.

SASA cached

T13

T. brucei ODC (Active site) T. brucei Active site

Ligand OHD_TB2021_74

PDB1F3T↗

3D complex viewer

Strict H-bonds Permissive H-bonds

Viewer legend

Protein receptor

Pocket residues

Cofactor context

Docked ligand

Overall assessment

Weak SASA cached

Weak or marginal quality

Binding strong Geometry medium Native strong SASA done

Strain ΔE

26.8 kcal/mol

Protein clashes

Internal clashes

Native overlap

contact recall 0.79, Jaccard 0.58, H-bond role recall 0.43

Burial

71%

Hydrophobic fit

80%

Reason: no major geometry red flags detected

4 protein-contact clashes 4 intramolecular clashes 44% of hydrophobic surface appears solvent-exposed (16/36 atoms). Partial exposure is common but may limit selectivity and membrane permeability.

EcoTox / ADMET In-silico prediction only

Fish LC₅₀

Cat. 1 — Very toxic (≤1 mg/L)

Daphnia EC₅₀

Cat. 1 — Very toxic (≤1 mg/L)

Algae IC₅₀

Cat. 1 — Very toxic (≤1 mg/L)

Bioaccum.

Not B (BCF≤2000)

Persistent

Yes

ADMET alerts (in-silico)

hERG High Ames Clear DILI Risk

Molecular report

Full metrics ↗

Weak Marginal quality. Consider only alongside better-scoring alternatives.

✓ Good LE (-0.355 kcal/mol/HA) ✓ Good fit quality (FQ -3.83) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (26.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)

Score

-16.319

kcal/mol

-0.355

kcal/mol/HA

Fit Quality

-3.83

FQ (Leeson)

HAC

heavy atoms

643

LogP

5.51

cLogP

Final rank

5.1037

rank score

Inter norm

-0.619

normalised

Contacts

H-bonds 7

Strain ΔE

26.8 kcal/mol

SASA buried

71%

Lipo contact

80% BSA apolar/total

SASA unbound

935 Å²

Apolar buried

530 Å²

Interaction summary

HBA 6 HY 4 PI 3 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

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	1F3T	Contacts	19
Pose	Open native pose	HB	0
IFP residues	ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap	15	Native recall	0.79
Jaccard	0.58	RMSD	-
HB strict	4	Strict recall	0.44
HB same residue+role	3	HB role recall	0.43
HB same residue	3	HB residue recall	0.43

Protein summary

411 residues

Protein target	T13	Atoms	6340
Residues	411	Chains	1
Residue summary	VAL:624; LEU:551; LYS:506; ARG:480; PHE:460; ILE:418; ASP:348; GLU:332; THR:322; TYR:315; PRO:308; ALA:290; SER:264; GLY:224; ASN:210; GLN:170

All stored poses for this docking hit

Pose	Final rank	Inter norm	Score	HB	CT	CT overlap	CT recall	HB role rec.	RMSD	Excluded
34	5.1036565097617705	-0.618828	-16.3193	7	22	15	0.79	0.43	-	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 -16.319kcal/mol

Ligand efficiency (LE) -0.3548kcal/mol/HA

Score / heavy atom count

Fit quality (FQ) -3.829

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

Heavy atom count 46HA

Physicochemical properties

Molecular weight 642.8Da

Lipinski: ≤ 500 Da

LogP (cLogP) 5.51

Lipinski: ≤ 5

Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.80kcal/mol

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

Docked FF energy 111.36kcal/mol

Minimised FF energy 84.56kcal/mol

SASA & burial

✓ computed

SASA (unbound) 935.4Å²

Total solvent-accessible surface area of free ligand

BSA total 661.1Å²

Buried surface area upon binding

BSA apolar 530.0Å²

Hydrophobic contacts buried

BSA polar 131.1Å²

Polar contacts buried

Fraction buried 70.7%

> 60 % indicates good pocket engagement

Lipophilic contact ratio 80.2%

BSA apolar / BSA total — high = hydrophobic driver

Δ Non-polar SASA -2839.5Å²

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 3461.2Å²

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

Complex non-polar SASA 1410.9Å²

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