FAIRMol

Z56799026

Pose ID 637 Compound 560 Pose 637

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 Z56799026
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
55.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.57, Jaccard 0.48, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
68%
Reason: strain 55.7 kcal/mol
strain ΔE 55.7 kcal/mol 2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Daphnia EC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Algae IC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
Yes
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Risk
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.888 kcal/mol/HA) ✓ Good fit quality (FQ -8.65) ✓ Good H-bonds (3 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Extreme strain energy (55.7 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-27.526
kcal/mol
LE
-0.888
kcal/mol/HA
Fit Quality
-8.65
FQ (Leeson)
HAC
31
heavy atoms
MW
449
Da
LogP
5.48
cLogP
Final rank
3.2797
rank score
Inter norm
-0.868
normalised
Contacts
16
H-bonds 4
Strain ΔE
55.7 kcal/mol
SASA buried
80%
Lipo contact
68% BSA apolar/total
SASA unbound
707 Ų
Apolar buried
384 Ų

Interaction summary

HBD 1 HBA 2 HY 8 PI 3 CLASH 2

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 overlap12Native recall0.57
Jaccard0.48RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
644 1.2390812117577341 -0.802694 -18.2866 2 18 0 0.00 0.00 - no Open
640 3.2619718405099127 -0.854865 -27.9728 5 16 12 0.57 0.00 - no Open
637 3.279687740052878 -0.867529 -27.5257 4 16 12 0.57 0.00 - 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 -27.526kcal/mol
Ligand efficiency (LE) -0.8879kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.650
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 449.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.48
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 55.68kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 38.74kcal/mol
Minimised FF energy -16.93kcal/mol

SASA & burial

✓ computed
SASA (unbound) 707.2Ų
Total solvent-accessible surface area of free ligand
BSA total 567.6Ų
Buried surface area upon binding
BSA apolar 384.0Ų
Hydrophobic contacts buried
BSA polar 183.6Ų
Polar contacts buried
Fraction buried 80.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1530.5Ų
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 622.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)