FAIRMol

Z31216321

Pose ID 5819 Compound 3249 Pose 401

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T09
L. major DHFR-TS L. major
Ligand Z31216321

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 high Native strong SASA done
Strain ΔE
22.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.62, Jaccard 0.54, H-bond role recall 0.00
Burial
93%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
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 ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.889 kcal/mol/HA) ✓ Good fit quality (FQ -7.96) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (22.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-21.331
kcal/mol
LE
-0.889
kcal/mol/HA
Fit Quality
-7.96
FQ (Leeson)
HAC
24
heavy atoms
MW
353
Da
LogP
5.02
cLogP
Final rank
1.8841
rank score
Inter norm
-1.091
normalised
Contacts
16
H-bonds 5
Strain ΔE
22.7 kcal/mol
SASA buried
93%
Lipo contact
78% BSA apolar/total
SASA unbound
549 Ų
Apolar buried
399 Ų

Interaction summary

HBA 1 HY 9 PI 3 CLASH 2

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.
Name3CL9Contacts21
PoseOpen native poseHB0
IFP residues
NDP301 ALA32 ARG97 ASP52 GLY157 ILE45 LEU94 LYS57 MET53 PHE55 PHE56 PHE91 PRO88 SER86 THR180 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap13Native recall0.62
Jaccard0.54RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

511 residues
Protein targetT09Atoms8170
Residues511Chains2
Residue summaryLEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224

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
348 0.6964776511499704 -1.2977 -29.685 3 18 0 0.00 0.00 - no Open
401 1.8841358528343852 -1.09116 -21.331 5 16 13 0.62 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 -21.331kcal/mol
Ligand efficiency (LE) -0.8888kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.965
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 352.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.02
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.72kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 8.65kcal/mol
Minimised FF energy -14.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 549.3Ų
Total solvent-accessible surface area of free ligand
BSA total 511.5Ų
Buried surface area upon binding
BSA apolar 399.2Ų
Hydrophobic contacts buried
BSA polar 112.2Ų
Polar contacts buried
Fraction buried 93.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3172.1Ų
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 4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1693.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)