FAIRMol

Z56893343

Pose ID 1221 Compound 142 Pose 543

DB fairmolDocking 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 Z56893343
PDB5SD8

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
33.6 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.67, Jaccard 0.56, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.597 kcal/mol/HA) ✓ Good fit quality (FQ -5.97) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Very high strain energy (33.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (11)
Score
-20.294
kcal/mol
LE
-0.597
kcal/mol/HA
Fit Quality
-5.97
FQ (Leeson)
HAC
34
heavy atoms
MW
479
Da
LogP
4.51
cLogP
Final rank
1.3313
rank score
Inter norm
-0.769
normalised
Contacts
18
H-bonds 2
Strain ΔE
33.6 kcal/mol
SASA buried
80%
Lipo contact
80% BSA apolar/total
SASA unbound
764 Ų
Apolar buried
489 Ų

Interaction summary

HBA 1 HY 11 PI 3 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

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 overlap14Native recall0.67
Jaccard0.56RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
550 1.197726939005163 -0.783787 -21.0567 2 19 15 0.71 0.00 - no Open
543 1.331348486803007 -0.769292 -20.2938 2 18 14 0.67 0.00 - no Current
507 1.8206294907843865 -0.781117 -17.0472 2 18 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 -20.294kcal/mol
Ligand efficiency (LE) -0.5969kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.972
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 478.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.51
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 69.16kcal/mol
Minimised FF energy 35.55kcal/mol

SASA & burial

✓ computed
SASA (unbound) 764.4Ų
Total solvent-accessible surface area of free ligand
BSA total 614.9Ų
Buried surface area upon binding
BSA apolar 489.0Ų
Hydrophobic contacts buried
BSA polar 125.9Ų
Polar contacts buried
Fraction buried 80.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1706.2Ų
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 607.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)