Docking pose detail

Molecular metrics status: done

RDKit SASA-based burial metrics are cached.

SASA cached

T22

L. donovani rab5a L. donovani

Ligand KB_HAT_190

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 high Native strong SASA done

Strain ΔE

24.6 kcal/mol

Protein clashes

Internal clashes

Native overlap

contact recall 0.90, Jaccard 0.73, H-bond role recall 0.27

Burial

92%

Hydrophobic fit

86%

Reason: no major geometry red flags detected

1 protein-contact clashes 72% of hydrophobic surface is solvent-exposed (13/18 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.

Molecular report

Full metrics ↗

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

✓ Excellent LE (-1.163 kcal/mol/HA) ✓ Good fit quality (FQ -10.72) ✓ Good H-bonds (5 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ High strain energy (24.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)

Score

-30.240

kcal/mol

-1.163

kcal/mol/HA

Fit Quality

-10.72

FQ (Leeson)

HAC

heavy atoms

382

LogP

3.17

cLogP

Final rank

1.4336

rank score

Inter norm

-1.175

normalised

Contacts

H-bonds 7

Strain ΔE

24.6 kcal/mol

SASA buried

92%

Lipo contact

86% BSA apolar/total

SASA unbound

636 Å²

Apolar buried

502 Å²

Interaction summary

HBD 2 HBA 3 HY 3 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

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

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	19	Native recall	0.90
Jaccard	0.73	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
86	1.4336466465627389	-1.1746	-30.2396	7	24	19	0.90	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 -30.240kcal/mol

Ligand efficiency (LE) -1.1631kcal/mol/HA

Score / heavy atom count

Fit quality (FQ) -10.716

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

Heavy atom count 26HA

Physicochemical properties

Molecular weight 382.4Da

Lipinski: ≤ 500 Da

LogP (cLogP) 3.17

Lipinski: ≤ 5

Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.58kcal/mol

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

Docked FF energy 14.71kcal/mol

Minimised FF energy -9.87kcal/mol

SASA & burial

✓ computed

SASA (unbound) 635.5Å²

Total solvent-accessible surface area of free ligand

BSA total 581.8Å²

Buried surface area upon binding

BSA apolar 501.6Å²

Hydrophobic contacts buried

BSA polar 80.2Å²

Polar contacts buried

Fraction buried 91.6%

> 60 % indicates good pocket engagement

Lipophilic contact ratio 86.2%

BSA apolar / BSA total — high = hydrophobic driver

Δ Non-polar SASA -1425.5Å²

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 1368.5Å²

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

Complex non-polar SASA 497.5Å²

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