Docking pose detail

Molecular metrics status: done

RDKit SASA-based burial metrics are cached.

SASA cached

T22

L. donovani rab5a L. donovani

Ligand Z56857031

3D complex viewer

Strict H-bonds Permissive H-bonds

Viewer legend

Protein receptor

Pocket residues

Cofactor context

Docked ligand

Overall assessment

Weak SASA cached

Promising but geometrically suspicious

Binding strong Geometry low Native mixed SASA done

Strain ΔE

26.4 kcal/mol

Protein clashes

Internal clashes

Native overlap

contact recall 0.52, Jaccard 0.41, H-bond role recall 0.36

Burial

92%

Hydrophobic fit

72%

Reason: 9 internal clashes

9 intramolecular clashes 50% of hydrophobic surface appears solvent-exposed (7/14 atoms). Partial exposure is common but may limit selectivity and membrane permeability.

EcoTox / ADMET In-silico prediction only

Fish LC₅₀

Cat. 3 — Harmful (10–100 mg/L)

Daphnia EC₅₀

Cat. 3 — Harmful (10–100 mg/L)

Algae IC₅₀

Cat. 3 — Harmful (10–100 mg/L)

Bioaccum.

Not B (BCF≤2000)

Persistent

ADMET alerts (in-silico)

hERG Medium Ames Alert DILI Low

Molecular report

Full metrics ↗

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

✓ Excellent LE (-1.669 kcal/mol/HA) ✓ Good fit quality (FQ -14.24) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ High strain energy (26.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)

Score

-35.049

kcal/mol

-1.669

kcal/mol/HA

Fit Quality

-14.24

FQ (Leeson)

HAC

heavy atoms

304

LogP

2.82

cLogP

Final rank

2.4901

rank score

Inter norm

-1.578

normalised

Contacts

H-bonds 11

Strain ΔE

26.4 kcal/mol

SASA buried

92%

Lipo contact

72% BSA apolar/total

SASA unbound

538 Å²

Apolar buried

357 Å²

Interaction summary

HBD 1 HBA 8 HY 2 PI 0 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 6.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

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	11	Native recall	0.52
Jaccard	0.41	RMSD	-
HB strict	6	Strict recall	0.40
HB same residue+role	4	HB role recall	0.36
HB same residue	4	HB residue recall	0.36

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
481	2.4901164754240983	-1.57771	-35.0494	11	17	11	0.52	0.36	-	no	Current
488	2.7504807768706425	-1.22176	-26.0031	13	14	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 -35.049kcal/mol

Ligand efficiency (LE) -1.6690kcal/mol/HA

Score / heavy atom count

Fit quality (FQ) -14.236

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

Heavy atom count 21HA

Physicochemical properties

Molecular weight 304.4Da

Lipinski: ≤ 500 Da

LogP (cLogP) 2.82

Lipinski: ≤ 5

Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.43kcal/mol

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

Docked FF energy -6.33kcal/mol

Minimised FF energy -32.77kcal/mol

SASA & burial

✓ computed

SASA (unbound) 537.6Å²

Total solvent-accessible surface area of free ligand

BSA total 494.9Å²

Buried surface area upon binding

BSA apolar 357.3Å²

Hydrophobic contacts buried

BSA polar 137.5Å²

Polar contacts buried

Fraction buried 92.0%

> 60 % indicates good pocket engagement

Lipophilic contact ratio 72.2%

BSA apolar / BSA total — high = hydrophobic driver

Δ Non-polar SASA -1263.0Å²

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 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)