FAIRMol

TC342

Pose ID 953 Compound 1037 Pose 275

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 TC342
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
35.2 kcal/mol
Protein clashes
0
Internal clashes
16
Native overlap
contact recall 0.57, Jaccard 0.39, H-bond role recall 0.40
Burial
77%
Hydrophobic fit
84%
Reason: 16 internal clashes
16 intramolecular clashes 37% of hydrophobic surface appears solvent-exposed (11/30 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 (-0.662 kcal/mol/HA) ✓ Good fit quality (FQ -6.88) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (77% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Very high strain energy (35.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-25.839
kcal/mol
LE
-0.662
kcal/mol/HA
Fit Quality
-6.88
FQ (Leeson)
HAC
39
heavy atoms
MW
532
Da
LogP
3.79
cLogP
Strain ΔE
35.2 kcal/mol
SASA buried
77%
Lipo contact
84% BSA apolar/total
SASA unbound
880 Ų
Apolar buried
569 Ų

Interaction summary

HB 10 HY 24 PI 3 CLASH 0 ⚠ Exposure 36%
⚠️Partial hydrophobic solvent exposure
37% of hydrophobic surface appears solvent-exposed (11/30 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 30 Buried (contacted) 19 Exposed 11 LogP 3.79 H-bonds 10
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (5 atoms exposed)
Final rank4.778Score-25.839
Inter norm-0.772Intra norm0.110
Top1000noExcludedno
Contacts22H-bonds10
Artifact reasongeometry warning; 16 clashes; 3 protein clashes; high strain Δ 35.2
Residues
ALA10 ARG29 ARG66 ARG71 ASN65 GLN36 GLU31 ILE8 LEU23 LEU28 LEU68 LYS64 LYS69 NAP201 PHE32 PHE35 PRO27 PRO62 PRO67 THR137 TRP25 TYR34

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 overlap12Native recall0.57
Jaccard0.39RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
248 2.048813667607478 -0.614374 -9.73646 7 16 0 0.00 0.00 - no Open
215 2.4577901811693255 -0.623182 -16.3266 6 16 0 0.00 0.00 - no Open
206 2.7577601342615625 -0.827558 -20.9914 7 22 0 0.00 0.00 - no Open
254 3.256604468418019 -0.663495 -10.5295 5 22 0 0.00 0.00 - no Open
275 4.777589574511002 -0.772139 -25.8389 10 22 12 0.57 0.40 - no Current
273 5.650594001336309 -0.575422 -19.2044 8 11 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 -25.839kcal/mol
Ligand efficiency (LE) -0.6625kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.876
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 531.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.79
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.19kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 119.59kcal/mol
Minimised FF energy 84.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 880.4Ų
Total solvent-accessible surface area of free ligand
BSA total 680.9Ų
Buried surface area upon binding
BSA apolar 568.6Ų
Hydrophobic contacts buried
BSA polar 112.3Ų
Polar contacts buried
Fraction buried 77.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1811.1Ų
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 624.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)