FAIRMol

OHD_Babesia_21

Pose ID 50 Compound 644 Pose 50

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T01
Human DHFR Human
Ligand OHD_Babesia_21
PDB5SD8

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
61.8 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.62, Jaccard 0.52, H-bond role recall 0.20
Burial
87%
Hydrophobic fit
73%
Reason: strain 61.8 kcal/mol
strain ΔE 61.8 kcal/mol 4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.682 kcal/mol/HA) ✓ Good fit quality (FQ -7.08) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (73%) ✗ Extreme strain energy (61.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (24)
Score
-26.603
kcal/mol
LE
-0.682
kcal/mol/HA
Fit Quality
-7.08
FQ (Leeson)
HAC
39
heavy atoms
MW
545
Da
LogP
-0.72
cLogP
Strain ΔE
61.8 kcal/mol
SASA buried
87%
Lipo contact
73% BSA apolar/total
SASA unbound
768 Ų
Apolar buried
489 Ų

Interaction summary

HB 12 HY 24 PI 2 CLASH 5
Final rank4.559Score-26.603
Inter norm-0.751Intra norm0.069
Top1000noExcludedno
Contacts17H-bonds12
Artifact reasongeometry warning; 24 clashes; 1 protein clash; 1 severe cofactor-context clash; high strain Δ 61.8
Residues
ALA10 ARG29 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 SER60 THR137 THR57 TYR34 VAL9

Protein summary

200 residues
Protein targetT01Atoms3128
Residues200Chains2
Residue summaryLYS:374; LEU:361; GLU:240; VAL:224; ARG:192; PHE:180; ILE:171; PRO:168; ASN:140; SER:132; TYR:126; GLN:119; ASP:108; MET:102; THR:98; GLY:91

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:NAP201

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5SD8Contacts21
PoseOpen native poseHB0
IFP residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 THR57 TYR122 VAL116 VAL9
Current overlap13Native recall0.62
Jaccard0.52RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
25 4.545849938916814 -0.612181 -23.1555 6 15 0 0.00 0.00 - no Open
50 4.558542500238084 -0.750709 -26.6034 12 17 13 0.62 0.20 - no Current
37 5.41903790277031 -0.585366 -22.3397 7 9 0 0.00 0.00 - no Open
46 5.925882696488416 -0.670681 -24.862 9 11 0 0.00 0.00 - no Open
29 7.449320461081546 -0.724751 -26.6738 7 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 -26.603kcal/mol
Ligand efficiency (LE) -0.6821kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.079
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 544.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.72
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 61.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 162.48kcal/mol
Minimised FF energy 100.69kcal/mol

SASA & burial

✓ computed
SASA (unbound) 768.2Ų
Total solvent-accessible surface area of free ligand
BSA total 666.8Ų
Buried surface area upon binding
BSA apolar 489.2Ų
Hydrophobic contacts buried
BSA polar 177.6Ų
Polar contacts buried
Fraction buried 86.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1653.4Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 599.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)