FAIRMol

TC488

Pose ID 5628 Compound 890 Pose 210

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T09
L. major DHFR-TS L. major
Ligand TC488

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
43.7 kcal/mol
Protein clashes
0
Internal clashes
17
Native overlap
contact recall 0.57, Jaccard 0.50, H-bond role recall 0.17
Burial
72%
Hydrophobic fit
83%
Reason: 17 internal clashes, strain 43.7 kcal/mol
strain ΔE 43.7 kcal/mol 17 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.555 kcal/mol/HA) ✓ Good fit quality (FQ -5.72) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Extreme strain energy (43.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-21.097
kcal/mol
LE
-0.555
kcal/mol/HA
Fit Quality
-5.72
FQ (Leeson)
HAC
38
heavy atoms
MW
516
Da
LogP
3.89
cLogP
Strain ΔE
43.7 kcal/mol
SASA buried
72%
Lipo contact
83% BSA apolar/total
SASA unbound
852 Ų
Apolar buried
512 Ų

Interaction summary

HB 8 HY 21 PI 2 CLASH 0

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.
Final rank3.021Score-21.097
Inter norm-0.766Intra norm0.211
Top1000noExcludedno
Contacts15H-bonds8
Artifact reasongeometry warning; 17 clashes; 1 protein clash; high strain Δ 43.2
Residues
NDP301 ARG97 ILE45 LEU94 LYS57 LYS95 MET53 PHE56 PHE91 PRO50 PRO88 PRO93 SER86 THR83 VAL87

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3CL9Contacts21
PoseOpen native poseHB0
IFP residues
NDP301 ALA32 ARG97 ASP52 GLY157 ILE45 LEU94 LYS57 MET53 PHE55 PHE56 PHE91 PRO88 SER86 THR180 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap12Native recall0.57
Jaccard0.50RMSD-
HB strict2Strict recall0.29
HB same residue+role1HB role recall0.17
HB same residue1HB residue recall0.17

Protein summary

511 residues
Protein targetT09Atoms8170
Residues511Chains2
Residue summaryLEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224

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:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
291 2.095868565537577 -0.687894 -19.7625 3 18 0 0.00 0.00 - no Open
241 2.3234143490933676 -0.829467 -25.5867 7 17 0 0.00 0.00 - no Open
238 2.5362362221280943 -0.848845 -25.5232 5 15 0 0.00 0.00 - no Open
265 2.7979034937059644 -0.625326 -19.5561 9 16 0 0.00 0.00 - no Open
210 3.0208880160366225 -0.765696 -21.0966 8 15 12 0.57 0.17 - no Current
263 3.985667289991813 -0.601518 -17.8603 5 15 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 -21.097kcal/mol
Ligand efficiency (LE) -0.5552kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.723
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 515.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.89
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.67kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 121.94kcal/mol
Minimised FF energy 78.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 851.5Ų
Total solvent-accessible surface area of free ligand
BSA total 615.9Ų
Buried surface area upon binding
BSA apolar 511.5Ų
Hydrophobic contacts buried
BSA polar 104.4Ų
Polar contacts buried
Fraction buried 72.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3446.8Ų
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 4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1706.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)