FAIRMol

Z56935326

Pose ID 1296 Compound 1015 Pose 618

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 Z56935326
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
20.6 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.76, Jaccard 0.67, H-bond role recall 0.60
Burial
78%
Hydrophobic fit
94%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.629 kcal/mol/HA) ✓ Good fit quality (FQ -6.40) ✓ Good H-bonds (3 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ High strain energy (20.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (18)
Score
-22.656
kcal/mol
LE
-0.629
kcal/mol/HA
Fit Quality
-6.40
FQ (Leeson)
HAC
36
heavy atoms
MW
466
Da
LogP
7.87
cLogP
Strain ΔE
20.6 kcal/mol
SASA buried
78%
Lipo contact
94% BSA apolar/total
SASA unbound
808 Ų
Apolar buried
592 Ų

Interaction summary

HB 3 HY 24 PI 3 CLASH 6

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

Final rank3.544Score-22.656
Inter norm-0.704Intra norm0.074
Top1000noExcludedno
Contacts19H-bonds3
Artifact reasongeometry warning; 18 clashes; 1 protein clash; moderate strain Δ 20.6
Residues
ALA10 ARG29 ASP22 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU28 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 TYR122 VAL116 VAL9

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 strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
637 1.8836013452383191 -0.660271 -24.7592 1 16 0 0.00 0.00 - no Open
620 3.378715481140251 -0.78601 -24.5487 3 14 0 0.00 0.00 - no Open
629 3.4909215645034988 -0.560552 -18.2071 4 14 0 0.00 0.00 - no Open
618 3.5438463176472115 -0.703934 -22.6562 3 19 16 0.76 0.60 - no Current
632 3.949263008578241 -0.609384 -21.8707 4 9 0 0.00 0.00 - no Open
633 3.986665341300043 -0.658461 -25.2639 3 20 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 -22.656kcal/mol
Ligand efficiency (LE) -0.6293kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.396
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 465.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 7.87
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 106.92kcal/mol
Minimised FF energy 86.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 807.5Ų
Total solvent-accessible surface area of free ligand
BSA total 630.4Ų
Buried surface area upon binding
BSA apolar 591.8Ų
Hydrophobic contacts buried
BSA polar 38.7Ų
Polar contacts buried
Fraction buried 78.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1832.4Ų
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 613.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)