FAIRMol

Z31287535

Pose ID 1139 Compound 858 Pose 461

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 Z31287535
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
49.6 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.81, Jaccard 0.71, H-bond role recall 0.20
Burial
88%
Hydrophobic fit
86%
Reason: strain 49.6 kcal/mol
strain ΔE 49.6 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.591 kcal/mol/HA) ✓ Good fit quality (FQ -6.01) ✓ Good H-bonds (3 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Extreme strain energy (49.6 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (20)
Score
-21.285
kcal/mol
LE
-0.591
kcal/mol/HA
Fit Quality
-6.01
FQ (Leeson)
HAC
36
heavy atoms
MW
488
Da
LogP
1.30
cLogP
Strain ΔE
49.6 kcal/mol
SASA buried
88%
Lipo contact
86% BSA apolar/total
SASA unbound
796 Ų
Apolar buried
602 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 2

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 rank1.913Score-21.285
Inter norm-0.767Intra norm0.176
Top1000noExcludedno
Contacts20H-bonds3
Artifact reasongeometry warning; 20 clashes; 3 protein contact clashes; 1 cofactor-context clash; high strain Δ 49.6
Residues
ALA10 ARG29 ASN65 ASP22 GLY21 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 THR57 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 overlap17Native recall0.81
Jaccard0.71RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
461 1.9128810044898366 -0.767114 -21.2851 3 20 17 0.81 0.20 - no Current
446 2.475151175548583 -0.676813 -11.5359 4 17 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 -21.285kcal/mol
Ligand efficiency (LE) -0.5913kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.009
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 487.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.30
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 49.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 260.10kcal/mol
Minimised FF energy 210.51kcal/mol

SASA & burial

✓ computed
SASA (unbound) 796.0Ų
Total solvent-accessible surface area of free ligand
BSA total 698.5Ų
Buried surface area upon binding
BSA apolar 601.9Ų
Hydrophobic contacts buried
BSA polar 96.6Ų
Polar contacts buried
Fraction buried 87.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1744.2Ų
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 615.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)