FAIRMol

Z49733996

Pose ID 536 Compound 652 Pose 536

DB fairmolDocking 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 Z49733996
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
35.0 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.71, Jaccard 0.60, H-bond role recall 0.20
Burial
86%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.953 kcal/mol/HA) ✓ Good fit quality (FQ -9.19) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Very high strain energy (35.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-28.594
kcal/mol
LE
-0.953
kcal/mol/HA
Fit Quality
-9.19
FQ (Leeson)
HAC
30
heavy atoms
MW
423
Da
LogP
4.44
cLogP
Strain ΔE
35.0 kcal/mol
SASA buried
86%
Lipo contact
78% BSA apolar/total
SASA unbound
731 Ų
Apolar buried
493 Ų

Interaction summary

HB 8 HY 24 PI 2 CLASH 5

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 rank5.134Score-28.594
Inter norm-0.855Intra norm-0.098
Top1000noExcludedno
Contacts19H-bonds8
Artifact reasongeometry warning; 13 clashes; 3 protein clashes; high strain Δ 35.0
Residues
ALA10 ARG66 ARG71 ASN65 GLN36 GLU31 ILE61 ILE8 LEU68 LYS69 NAP201 PHE32 PHE35 PRO62 PRO67 THR137 THR57 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 overlap15Native recall0.71
Jaccard0.60RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
494 1.2138471353336093 -0.808912 -17.6105 2 18 0 0.00 0.00 - no Open
536 5.13434189743556 -0.854771 -28.5944 8 19 15 0.71 0.20 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -28.594kcal/mol
Ligand efficiency (LE) -0.9531kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.194
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 422.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.44
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.00kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 74.78kcal/mol
Minimised FF energy 39.78kcal/mol

SASA & burial

✓ computed
SASA (unbound) 730.5Ų
Total solvent-accessible surface area of free ligand
BSA total 630.3Ų
Buried surface area upon binding
BSA apolar 492.8Ų
Hydrophobic contacts buried
BSA polar 137.6Ų
Polar contacts buried
Fraction buried 86.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1644.7Ų
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 614.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)