Docking pose detail

Molecular metrics status: done

RDKit SASA-based burial metrics are cached.

SASA cached

T22

L. donovani rab5a L. donovani

Ligand OSA_Lib_41

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

18.9 kcal/mol

Protein clashes

Internal clashes

Native overlap

contact recall 0.67, Jaccard 0.50, H-bond role recall 0.27

Burial

84%

Hydrophobic fit

93%

Reason: no major geometry red flags detected

4 protein-contact clashes 4 intramolecular clashes 81% of hydrophobic surface is solvent-exposed (26/32 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 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.

✓ Excellent LE (-0.672 kcal/mol/HA) ✓ Good fit quality (FQ -6.78) ✓ Good H-bonds (4 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (93%) ✗ Moderate strain (18.9 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (21)

Score

-23.537

kcal/mol

-0.672

kcal/mol/HA

Fit Quality

-6.78

FQ (Leeson)

HAC

heavy atoms

467

LogP

5.40

cLogP

Final rank

2.7714

rank score

Inter norm

-0.892

normalised

Contacts

H-bonds 5

Strain ΔE

18.9 kcal/mol

SASA buried

84%

Lipo contact

93% BSA apolar/total

SASA unbound

733 Å²

Apolar buried

571 Å²

Interaction summary

HBA 4 HY 2 PI 1 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

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	RAB5A	Contacts	21
Pose	Open native pose	HB	0
IFP residues	ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 SER27 SER28
Current overlap	14	Native recall	0.67
Jaccard	0.50	RMSD	-
HB strict	4	Strict recall	0.27
HB same residue+role	3	HB role recall	0.27
HB same residue	3	HB residue recall	0.27

Protein summary

165 residues

Protein target	T22	Atoms	2561
Residues	165	Chains	1
Residue summary	LEU:363; LYS:242; ALA:231; ARG:214; ILE:190; GLU:180; VAL:144; SER:143; PHE:140; ASN:112; THR:112; TYR:105; GLN:102; ASP:96; GLY:77; TRP:48

All stored poses for this docking hit

Pose	Final rank	Inter norm	Score	HB	CT	CT overlap	CT recall	HB role rec.	RMSD	Excluded
129	2.7713765494629334	-0.892149	-23.5372	5	21	14	0.67	0.27	-	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 -23.537kcal/mol

Ligand efficiency (LE) -0.6725kcal/mol/HA

Score / heavy atom count

Fit quality (FQ) -6.783

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

Heavy atom count 35HA

Physicochemical properties

Molecular weight 466.6Da

Lipinski: ≤ 500 Da

LogP (cLogP) 5.40

Lipinski: ≤ 5

Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.88kcal/mol

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

Docked FF energy 98.56kcal/mol

Minimised FF energy 79.68kcal/mol

SASA & burial

✓ computed

SASA (unbound) 732.8Å²

Total solvent-accessible surface area of free ligand

BSA total 613.3Å²

Buried surface area upon binding

BSA apolar 571.3Å²

Hydrophobic contacts buried

BSA polar 41.9Å²

Polar contacts buried

Fraction buried 83.7%

> 60 % indicates good pocket engagement

Lipophilic contact ratio 93.2%

BSA apolar / BSA total — high = hydrophobic driver

Δ Non-polar SASA -1559.1Å²

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 1368.5Å²

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

Complex non-polar SASA 500.2Å²

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