FAIRMol

MK65

Pose ID 6292 Compound 3475 Pose 196

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand MK65

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
23.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.76, Jaccard 0.72, H-bond role recall 0.45
Burial
75%
Hydrophobic fit
57%
Reason: no major geometry red flags detected
1 protein-contact clashes 47% of hydrophobic surface appears solvent-exposed (7/15 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.889 kcal/mol/HA) ✓ Good fit quality (FQ -7.71) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (75% SASA buried) ✗ High strain energy (23.1 kcal/mol) ✗ Geometry warnings
Score
-19.550
kcal/mol
LE
-0.889
kcal/mol/HA
Fit Quality
-7.71
FQ (Leeson)
HAC
22
heavy atoms
MW
338
Da
LogP
4.01
cLogP
Strain ΔE
23.1 kcal/mol
SASA buried
75%
Lipo contact
57% BSA apolar/total
SASA unbound
582 Ų
Apolar buried
251 Ų

Interaction summary

HB 9 HY 3 PI 2 CLASH 1 ⚠ Exposure 46%
⚠️Partial hydrophobic solvent exposure
47% of hydrophobic surface appears solvent-exposed (7/15 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 15 Buried (contacted) 8 Exposed 7 LogP 4.01 H-bonds 9
Exposed fragments: phenyl (3/5 atoms exposed)aliphatic chain/group (4 atoms exposed)
Final rank3.436Score-19.550
Inter norm-1.283Intra norm0.394
Top1000noExcludedno
Contacts14H-bonds9
Artifact reasongeometry warning; 4 clashes; 3 protein clashes; moderate strain Δ 23.1
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY77 HIS105 HIS14 HIS141 SER46 TYR49

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap13Native recall0.76
Jaccard0.72RMSD-
HB strict6Strict recall0.46
HB same residue+role5HB role recall0.45
HB same residue6HB residue recall0.55

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
247 1.5333620443562261 -1.09517 -21.6566 7 17 0 0.00 0.00 - no Open
196 3.435615113903597 -1.28307 -19.55 9 14 13 0.76 0.45 - 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 -19.550kcal/mol
Ligand efficiency (LE) -0.8886kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.715
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 338.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.01
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.11kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 48.27kcal/mol
Minimised FF energy 25.16kcal/mol

SASA & burial

✓ computed
SASA (unbound) 582.0Ų
Total solvent-accessible surface area of free ligand
BSA total 438.3Ų
Buried surface area upon binding
BSA apolar 251.3Ų
Hydrophobic contacts buried
BSA polar 187.0Ų
Polar contacts buried
Fraction buried 75.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 57.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2153.4Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 648.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)