FAIRMol

MK217

Pose ID 8338 Compound 135 Pose 208

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T13
T. brucei ODC (Active site) T. brucei Active site
Ligand MK217
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 high Native strong SASA done
Strain ΔE
21.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.43
Burial
69%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.911 kcal/mol/HA) ✓ Good fit quality (FQ -8.79) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (69% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (21.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-27.321
kcal/mol
LE
-0.911
kcal/mol/HA
Fit Quality
-8.79
FQ (Leeson)
HAC
30
heavy atoms
MW
427
Da
LogP
4.61
cLogP
Strain ΔE
21.9 kcal/mol
SASA buried
69%
Lipo contact
80% BSA apolar/total
SASA unbound
703 Ų
Apolar buried
389 Ų

Interaction summary

HB 7 HY 15 PI 3 CLASH 2
Final rank3.729Score-27.321
Inter norm-1.003Intra norm0.092
Top1000noExcludedno
Contacts17H-bonds7
Artifact reasongeometry warning; 12 clashes; 2 protein clashes; moderate strain Δ 21.7
Residues
ALA67 ARG277 ASN327 ASP332 CYS328 GLU274 GLY236 GLY237 GLY276 GLY393 HIS197 LYS69 PRO275 SER200 TYR331 TYR389 VAL392

Protein summary

411 residues
Protein targetT13Atoms6340
Residues411Chains1
Residue summaryVAL: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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1F3TContacts19
PoseOpen native poseHB0
IFP residues
ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap13Native recall0.68
Jaccard0.57RMSD-
HB strict3Strict recall0.33
HB same residue+role3HB role recall0.43
HB same residue4HB residue recall0.57

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
338 1.1547768705232146 -0.933689 -25.1453 11 21 0 0.00 0.00 - no Open
327 2.1668862228610912 -1.02891 -28.665 4 19 0 0.00 0.00 - no Open
287 2.8559837909450883 -0.774378 -21.259 5 16 0 0.00 0.00 - no Open
208 3.7289272371499456 -1.00251 -27.321 7 17 13 0.68 0.43 - no Current
311 3.9191241786417086 -0.845928 -24.1464 8 17 0 0.00 0.00 - no Open
362 4.234418293304888 -0.826607 -20.814 7 14 0 0.00 0.00 - no Open
392 4.656774794069281 -0.888962 -22.0884 10 12 0 0.00 0.00 - no Open
235 4.770647973411289 -1.11974 -29.3968 11 18 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 -27.321kcal/mol
Ligand efficiency (LE) -0.9107kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.785
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 426.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.61
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.87kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 60.75kcal/mol
Minimised FF energy 38.88kcal/mol

SASA & burial

✓ computed
SASA (unbound) 703.3Ų
Total solvent-accessible surface area of free ligand
BSA total 486.2Ų
Buried surface area upon binding
BSA apolar 389.1Ų
Hydrophobic contacts buried
BSA polar 97.1Ų
Polar contacts buried
Fraction buried 69.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2661.8Ų
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 3461.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1368.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)