FAIRMol

MK178

Pose ID 994 Compound 959 Pose 316

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T02
Human DHFR Human
Ligand MK178
PDB5SD8

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 strong SASA done
Strain ΔE
35.1 kcal/mol
Protein clashes
0
Internal clashes
9
Native overlap
contact recall 0.67, Jaccard 0.58, H-bond role recall 0.60
Burial
79%
Hydrophobic fit
77%
Reason: 9 internal clashes
9 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.036 kcal/mol/HA) ✓ Good fit quality (FQ -9.66) ✓ Good H-bonds (4 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Very high strain energy (35.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-27.962
kcal/mol
LE
-1.036
kcal/mol/HA
Fit Quality
-9.66
FQ (Leeson)
HAC
27
heavy atoms
MW
383
Da
LogP
1.19
cLogP
Strain ΔE
35.1 kcal/mol
SASA buried
79%
Lipo contact
77% BSA apolar/total
SASA unbound
663 Ų
Apolar buried
405 Ų

Interaction summary

HB 4 HY 11 PI 1 CLASH 0
Final rank2.689Score-27.962
Inter norm-1.009Intra norm-0.026
Top1000noExcludedno
Contacts17H-bonds4
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; high strain Δ 35.1
Residues
ALA10 ASP22 GLY117 GLY21 ILE61 ILE8 LEU23 NAP201 PRO26 PRO27 PRO62 SER60 THR57 TRP25 TYR122 VAL116 VAL9

Protein summary

200 residues
Protein targetT02Atoms3128
Residues200Chains2
Residue summaryLYS:374; LEU:361; GLU:240; VAL:224; ARG:192; PHE:180; ILE:171; PRO:168; ASN:140; SER:132; TYR:126; GLN:119; ASP:108; MET:102; THR:98; GLY:91

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:NAP201

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5SD8Contacts21
PoseOpen native poseHB0
IFP residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 THR57 TYR122 VAL116 VAL9
Current overlap14Native recall0.67
Jaccard0.58RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
263 1.592080145120779 -1.12639 -29.0563 5 19 0 0.00 0.00 - no Open
312 1.7090821578932922 -0.761878 -19.574 5 14 0 0.00 0.00 - no Open
233 2.362724664818737 -1.1807 -29.9558 6 23 0 0.00 0.00 - no Open
302 2.632828114530727 -0.9115 -23.8494 10 15 0 0.00 0.00 - no Open
316 2.6891181938524733 -1.00925 -27.9623 4 17 14 0.67 0.60 - no Current
198 3.3400353943595693 -1.09241 -29.9339 14 17 0 0.00 0.00 - no Open
298 3.364585239610429 -0.834586 -22.6348 7 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 -27.962kcal/mol
Ligand efficiency (LE) -1.0356kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.662
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 383.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.19
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.12kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 130.59kcal/mol
Minimised FF energy 95.47kcal/mol

SASA & burial

✓ computed
SASA (unbound) 663.1Ų
Total solvent-accessible surface area of free ligand
BSA total 523.8Ų
Buried surface area upon binding
BSA apolar 404.8Ų
Hydrophobic contacts buried
BSA polar 119.0Ų
Polar contacts buried
Fraction buried 79.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1564.3Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 627.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)