FAIRMol

KB_HAT_17

Pose ID 5495 Compound 513 Pose 77

DB SELECTIONDocking 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_17

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
50.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.67, Jaccard 0.54, H-bond role recall 0.17
Burial
88%
Hydrophobic fit
86%
Reason: strain 50.8 kcal/mol
strain ΔE 50.8 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.794 kcal/mol/HA) ✓ Good fit quality (FQ -7.50) ✓ Good H-bonds (5 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Extreme strain energy (50.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-22.243
kcal/mol
LE
-0.794
kcal/mol/HA
Fit Quality
-7.50
FQ (Leeson)
HAC
28
heavy atoms
MW
400
Da
LogP
1.13
cLogP
Strain ΔE
50.8 kcal/mol
SASA buried
88%
Lipo contact
86% BSA apolar/total
SASA unbound
662 Ų
Apolar buried
496 Ų

Interaction summary

HB 5 HY 24 PI 1 CLASH 2
Final rank2.876Score-22.243
Inter norm-0.922Intra norm0.128
Top1000noExcludedno
Contacts19H-bonds5
Artifact reasongeometry warning; 13 clashes; 1 protein clash; high strain Δ 50.8
Residues
NDP301 ALA32 ARG48 ASP52 ILE182 ILE45 MET53 PHE56 PRO88 SER44 SER86 THR83 TRP47 TYR162 VAL156 VAL30 VAL31 VAL49 VAL87

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

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 overlap14Native recall0.67
Jaccard0.54RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.17
HB same residue1HB residue recall0.17

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
77 2.876430342267816 -0.922413 -22.2431 5 19 14 0.67 0.17 - no Current
114 2.883794498530214 -1.02014 -26.3795 3 17 0 0.00 0.00 - no Open
101 2.9293523248686655 -0.843323 -23.4699 7 17 0 0.00 0.00 - no Open
114 3.601961305920066 -1.19695 -28.055 4 21 0 0.00 0.00 - no Open
85 3.6319795394564807 -0.83297 -17.4434 6 19 1 0.05 0.00 - no Open
71 4.15022742952253 -1.05998 -23.809 15 20 0 0.00 0.00 - no Open
71 4.421576432535559 -0.829435 -18.9188 4 17 0 0.00 0.00 - no Open
89 4.489621695148427 -0.89201 -19.623 10 17 0 0.00 0.00 - no Open
92 4.6462206342733205 -0.843229 -22.0498 9 15 0 0.00 0.00 - no Open
64 4.727763877486028 -1.16427 -28.89 10 16 0 0.00 0.00 - no Open
44 6.009884957343629 -1.02072 -18.2378 15 15 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 -22.243kcal/mol
Ligand efficiency (LE) -0.7944kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.499
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 400.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.13
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -94.58kcal/mol
Minimised FF energy -145.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 662.0Ų
Total solvent-accessible surface area of free ligand
BSA total 580.3Ų
Buried surface area upon binding
BSA apolar 496.4Ų
Hydrophobic contacts buried
BSA polar 83.9Ų
Polar contacts buried
Fraction buried 87.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3294.3Ų
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 1671.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)