FAIRMol

Z26973046

Pose ID 646 Compound 173 Pose 646

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T01
Human DHFR Human
Ligand Z26973046
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
27.3 kcal/mol
Protein clashes
0
Internal clashes
20
Native overlap
contact recall 0.76, Jaccard 0.67, H-bond role recall 0.00
Burial
89%
Hydrophobic fit
88%
Reason: 20 internal clashes
20 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.755 kcal/mol/HA) ✓ Good fit quality (FQ -7.62) ✓ Deep burial (89% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ High strain energy (27.3 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Many internal clashes (20)
Score
-26.443
kcal/mol
LE
-0.755
kcal/mol/HA
Fit Quality
-7.62
FQ (Leeson)
HAC
35
heavy atoms
MW
465
Da
LogP
4.61
cLogP
Strain ΔE
27.3 kcal/mol
SASA buried
89%
Lipo contact
88% BSA apolar/total
SASA unbound
723 Ų
Apolar buried
567 Ų

Interaction summary

HB 0 HY 24 PI 2 CLASH 0
Final rank1.366Score-26.443
Inter norm-0.769Intra norm0.013
Top1000noExcludedno
Contacts19H-bonds0
Artifact reasongeometry warning; 20 clashes; moderate strain Δ 27.3
Residues
ALA10 ASP22 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 THR57 TRP25 TYR122 VAL116 VAL9

Protein summary

200 residues
Protein targetT01Atoms3128
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 overlap16Native recall0.76
Jaccard0.67RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

HB · H-bonds

No hb · h-bonds detected for this pose.

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
646 1.3657698551883037 -0.768602 -26.4431 0 19 16 0.76 0.00 - no Current
673 4.789953759320182 -0.724768 -25.6062 7 16 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 -26.443kcal/mol
Ligand efficiency (LE) -0.7555kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.620
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 464.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.61
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 27.27kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 110.53kcal/mol
Minimised FF energy 83.25kcal/mol

SASA & burial

✓ computed
SASA (unbound) 722.8Ų
Total solvent-accessible surface area of free ligand
BSA total 643.9Ų
Buried surface area upon binding
BSA apolar 567.0Ų
Hydrophobic contacts buried
BSA polar 76.9Ų
Polar contacts buried
Fraction buried 89.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1703.8Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 612.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)