FAIRMol

MK167

Pose ID 9107 Compound 3889 Pose 299

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T14
T. brucei ODC (G418 binding site) T. brucei G418 binding site
Ligand MK167
PDB1NJJ

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 mixed SASA done
Strain ΔE
18.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.33, Jaccard 0.26, H-bond role recall 0.00
Burial
68%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.729 kcal/mol/HA) ✓ Good fit quality (FQ -6.96) ✓ Good H-bonds (3 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Moderate strain (18.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-21.135
kcal/mol
LE
-0.729
kcal/mol/HA
Fit Quality
-6.96
FQ (Leeson)
HAC
29
heavy atoms
MW
432
Da
LogP
4.66
cLogP
Strain ΔE
18.9 kcal/mol
SASA buried
68%
Lipo contact
75% BSA apolar/total
SASA unbound
670 Ų
Apolar buried
340 Ų

Interaction summary

HB 3 HY 14 PI 0 CLASH 3
Final rank3.421Score-21.135
Inter norm-0.787Intra norm0.058
Top1000noExcludedno
Contacts9H-bonds3
Artifact reasongeometry warning; 16 clashes; 1 protein clash
Residues
ARG337 ASP243 ASP385 GLU384 LEU339 MET386 PHE383 VAL335 VAL336

Protein summary

398 residues
Protein targetT14Atoms6140
Residues398Chains1
Residue summaryVAL:592; LEU:513; LYS:484; ARG:432; PHE:420; ILE:418; ASP:349; THR:322; TYR:315; PRO:308; GLU:301; ALA:290; SER:253; GLY:217; ASN:210; GLN:170

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:ORX602

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1NJJContacts15
PoseOpen native poseHB0
IFP residues
ARG22 ARG242 ARG337 ARG342 ASP243 ASP385 GLN341 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 THR241
Current overlap5Native recall0.33
Jaccard0.26RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

HB · H-bonds

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

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
218 3.2861200874427556 -1.00006 -25.9307 12 17 0 0.00 0.00 - no Open
299 3.42149422113009 -0.787054 -21.1353 3 9 5 0.33 0.00 - 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 -21.135kcal/mol
Ligand efficiency (LE) -0.7288kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.957
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 431.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.66
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.86kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 38.99kcal/mol
Minimised FF energy 20.13kcal/mol

SASA & burial

✓ computed
SASA (unbound) 669.9Ų
Total solvent-accessible surface area of free ligand
BSA total 454.4Ų
Buried surface area upon binding
BSA apolar 340.5Ų
Hydrophobic contacts buried
BSA polar 114.0Ų
Polar contacts buried
Fraction buried 67.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2521.3Ų
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 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1364.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)