FAIRMol

TC227

Pose ID 1619 Compound 1324 Pose 264

DB SELECTIONDocking 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 TC227

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 mixed SASA done
Strain ΔE
45.6 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.50, Jaccard 0.48, H-bond role recall 0.40
Burial
79%
Hydrophobic fit
80%
Reason: 15 internal clashes, strain 45.6 kcal/mol
strain ΔE 45.6 kcal/mol 15 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.704 kcal/mol/HA) ✓ Good fit quality (FQ -7.10) ✓ Good H-bonds (3 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (45.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-24.634
kcal/mol
LE
-0.704
kcal/mol/HA
Fit Quality
-7.10
FQ (Leeson)
HAC
35
heavy atoms
MW
480
Da
LogP
0.73
cLogP
Strain ΔE
45.6 kcal/mol
SASA buried
79%
Lipo contact
80% BSA apolar/total
SASA unbound
755 Ų
Apolar buried
473 Ų

Interaction summary

HB 3 HY 23 PI 2 CLASH 0

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

No clash · clashes detected for this pose.
Final rank2.688Score-24.634
Inter norm-0.758Intra norm0.054
Top1000noExcludedno
Contacts11H-bonds3
Artifact reasongeometry warning; 15 clashes; 1 protein clash; high strain Δ 43.4
Residues
ALA32 ARG97 ASP52 LEU94 LYS57 LYS95 MET53 PHE56 PHE91 THR54 VAL87

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 overlap10Native recall0.50
Jaccard0.48RMSD-
HB strict3Strict recall0.43
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
217 1.3512816325645542 -0.920357 -27.0109 11 17 0 0.00 0.00 - no Open
327 2.562616059620716 -0.697603 -19.8611 7 15 1 0.05 0.00 - no Open
264 2.6884770570826144 -0.757765 -24.6339 3 11 10 0.50 0.40 - no Current
195 3.2904397737734246 -0.883666 -31.8781 9 18 0 0.00 0.00 - no Open
231 3.359211608723208 -0.923712 -28.1727 9 16 0 0.00 0.00 - no Open
204 3.710670948551887 -0.794939 -28.899 12 18 0 0.00 0.00 - no Open
236 3.7529471976223454 -0.658299 -21.2653 7 13 0 0.00 0.00 - no Open
160 4.525021538507883 -0.794752 -29.6473 11 18 0 0.00 0.00 - no Open
148 5.360865640556601 -0.707003 -22.203 10 16 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 -24.634kcal/mol
Ligand efficiency (LE) -0.7038kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.099
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 480.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.73
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 45.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -32.28kcal/mol
Minimised FF energy -77.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 754.7Ų
Total solvent-accessible surface area of free ligand
BSA total 594.9Ų
Buried surface area upon binding
BSA apolar 472.9Ų
Hydrophobic contacts buried
BSA polar 121.9Ų
Polar contacts buried
Fraction buried 78.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1615.2Ų
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 1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 795.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)