FAIRMol

Z56815608

Pose ID 619 Compound 171 Pose 619

DB fairmolDocking 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 Z56815608
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
Likely artefact or unreliable pose
Binding strong Geometry high Native mixed SASA done
Strain ΔE
25.7 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.52, Jaccard 0.44, H-bond role recall 0.40
Burial
79%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.063 kcal/mol/HA) ✓ Good fit quality (FQ -9.79) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ High strain energy (25.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (12)
Score
-27.635
kcal/mol
LE
-1.063
kcal/mol/HA
Fit Quality
-9.79
FQ (Leeson)
HAC
26
heavy atoms
MW
350
Da
LogP
2.71
cLogP
Strain ΔE
25.7 kcal/mol
SASA buried
79%
Lipo contact
81% BSA apolar/total
SASA unbound
623 Ų
Apolar buried
398 Ų

Interaction summary

HB 6 HY 19 PI 2 CLASH 1

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

Final rank1.347Score-27.635
Inter norm-0.991Intra norm-0.072
Top1000noExcludedno
Contacts15H-bonds6
Artifact reasongeometry warning; 12 clashes; 6 protein contact clashes; moderate strain Δ 25.7
Residues
ALA10 ARG29 ASN65 GLU31 ILE8 LEU23 LEU28 NAP201 PHE32 PHE35 PRO27 PRO62 TRP25 VAL116 VAL9

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 overlap11Native recall0.52
Jaccard0.44RMSD-
HB strict1Strict recall0.20
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
619 1.3467696206102813 -0.991354 -27.6349 6 15 11 0.52 0.40 - no Current
616 1.6273533240198839 -0.996887 -27.9479 6 14 10 0.48 0.40 - no Open
609 2.417857911312347 -1.02629 -28.7645 7 18 0 0.00 0.00 - no Open
611 2.630175173364487 -1.14452 -31.2089 6 12 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 -27.635kcal/mol
Ligand efficiency (LE) -1.0629kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.793
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 350.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.71
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.66kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -124.34kcal/mol
Minimised FF energy -150.00kcal/mol

SASA & burial

✓ computed
SASA (unbound) 623.2Ų
Total solvent-accessible surface area of free ligand
BSA total 493.7Ų
Buried surface area upon binding
BSA apolar 398.5Ų
Hydrophobic contacts buried
BSA polar 95.2Ų
Polar contacts buried
Fraction buried 79.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1581.0Ų
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 622.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)