FAIRMol

Z56948137

Pose ID 1886 Compound 1383 Pose 531

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T03
L. major DHFR L. major
Ligand Z56948137

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
50.5 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.90, Jaccard 0.82, H-bond role recall 0.20
Burial
85%
Hydrophobic fit
78%
Reason: strain 50.5 kcal/mol
strain ΔE 50.5 kcal/mol 3 protein-contact clashes 3 intramolecular clashes 48% of hydrophobic surface appears solvent-exposed (13/27 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG High Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.650 kcal/mol/HA) ✓ Good fit quality (FQ -6.70) ✓ Good H-bonds (3 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (50.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-24.712
kcal/mol
LE
-0.650
kcal/mol/HA
Fit Quality
-6.70
FQ (Leeson)
HAC
38
heavy atoms
MW
541
Da
LogP
3.23
cLogP
Final rank
3.2427
rank score
Inter norm
-0.725
normalised
Contacts
20
H-bonds 3
Strain ΔE
50.5 kcal/mol
SASA buried
85%
Lipo contact
78% BSA apolar/total
SASA unbound
858 Ų
Apolar buried
568 Ų

Interaction summary

HBA 3 HY 9 PI 3 CLASH 3

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.
Name3CL9Contacts20
PoseOpen native poseHB0
IFP residues
ALA32 ARG97 ASP52 ILE45 LEU94 LYS57 MET53 NDP301 PHE56 PHE91 PRO88 SER86 THR180 THR54 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap18Native recall0.90
Jaccard0.82RMSD-
HB strict2Strict recall0.29
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

225 residues
Protein targetT03Atoms3428
Residues225Chains2
Residue summaryLEU:380; ARG:360; VAL:272; LYS:264; ALA:240; GLU:240; PRO:224; PHE:180; THR:154; ILE:152; SER:132; TYR:126; GLN:119; ASN:98; GLY:84; NDP:74

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:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
531 3.242744825916433 -0.725186 -24.7121 3 20 18 0.90 0.20 - no Current
506 5.237531043117076 -0.723606 -26.2233 12 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 -24.712kcal/mol
Ligand efficiency (LE) -0.6503kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.704
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 540.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.23
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.52kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 92.25kcal/mol
Minimised FF energy 41.73kcal/mol

SASA & burial

✓ computed
SASA (unbound) 858.4Ų
Total solvent-accessible surface area of free ligand
BSA total 733.2Ų
Buried surface area upon binding
BSA apolar 568.5Ų
Hydrophobic contacts buried
BSA polar 164.8Ų
Polar contacts buried
Fraction buried 85.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1731.1Ų
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 1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 779.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)