FAIRMol

KB_HAT_86

Pose ID 5503 Compound 597 Pose 85

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 KB_HAT_86

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
10.5 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.62, Jaccard 0.50, H-bond role recall 0.17
Burial
79%
Hydrophobic fit
74%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 36% of hydrophobic surface appears solvent-exposed (8/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.832 kcal/mol/HA) ✓ Good fit quality (FQ -8.02) ✓ Good H-bonds (5 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Moderate strain (10.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-24.950
kcal/mol
LE
-0.832
kcal/mol/HA
Fit Quality
-8.02
FQ (Leeson)
HAC
30
heavy atoms
MW
420
Da
LogP
3.71
cLogP
Final rank
5.2394
rank score
Inter norm
-0.840
normalised
Contacts
18
H-bonds 9
Strain ΔE
10.5 kcal/mol
SASA buried
79%
Lipo contact
74% BSA apolar/total
SASA unbound
684 Ų
Apolar buried
402 Ų

Interaction summary

HBD 2 HBA 3 HY 8 PI 2 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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
Jaccard0.50RMSD-
HB strict1Strict recall0.14
HB same residue+role1HB role recall0.17
HB same residue1HB residue recall0.17

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
114 3.6092047519144113 -0.980348 -28.9132 7 16 0 0.00 0.00 - no Open
124 3.6661153275384026 -1.01311 -30.2781 7 16 0 0.00 0.00 - no Open
120 3.939630363477459 -0.671014 -19.9457 6 12 0 0.00 0.00 - no Open
85 5.239444192633564 -0.840368 -24.9503 9 18 13 0.62 0.17 - 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 -24.950kcal/mol
Ligand efficiency (LE) -0.8317kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.023
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 419.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.71
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 10.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -68.90kcal/mol
Minimised FF energy -79.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 684.5Ų
Total solvent-accessible surface area of free ligand
BSA total 542.7Ų
Buried surface area upon binding
BSA apolar 402.3Ų
Hydrophobic contacts buried
BSA polar 140.4Ų
Polar contacts buried
Fraction buried 79.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3271.2Ų
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 4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1693.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)