FAIRMol

Z45452525

Pose ID 493 Compound 328 Pose 493

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 Z45452525
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
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
39.0 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.71, Jaccard 0.62, H-bond role recall 0.40
Burial
88%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.779 kcal/mol/HA) ✓ Good fit quality (FQ -7.66) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Very high strain energy (39.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-24.916
kcal/mol
LE
-0.779
kcal/mol/HA
Fit Quality
-7.66
FQ (Leeson)
HAC
32
heavy atoms
MW
456
Da
LogP
4.62
cLogP
Final rank
1.9973
rank score
Inter norm
-0.802
normalised
Contacts
18
H-bonds 2
Strain ΔE
39.0 kcal/mol
SASA buried
88%
Lipo contact
85% BSA apolar/total
SASA unbound
669 Ų
Apolar buried
501 Ų

Interaction summary

HBD 1 HBA 1 HY 11 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap15Native recall0.71
Jaccard0.62RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
493 1.9973139696583404 -0.802139 -24.9162 2 18 15 0.71 0.40 - no Current
464 2.481260008237879 -0.653259 -21.5029 1 12 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 -24.916kcal/mol
Ligand efficiency (LE) -0.7786kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.657
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 455.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.62
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 61.94kcal/mol
Minimised FF energy 22.90kcal/mol

SASA & burial

✓ computed
SASA (unbound) 668.7Ų
Total solvent-accessible surface area of free ligand
BSA total 587.9Ų
Buried surface area upon binding
BSA apolar 500.8Ų
Hydrophobic contacts buried
BSA polar 87.1Ų
Polar contacts buried
Fraction buried 87.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1614.9Ų
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 641.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)