FAIRMol

ulfkktlib_975

Pose ID 276 Compound 23 Pose 276

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 ulfkktlib_975
PDB5SD8

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 high Native strong SASA done
Strain ΔE
4.5 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.62, Jaccard 0.54, H-bond role recall 0.20
Burial
93%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Low conformational strain (4.5 kcal/mol) ✓ Excellent LE (-1.149 kcal/mol/HA) ✓ Good fit quality (FQ -10.14) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (10)
Score
-26.431
kcal/mol
LE
-1.149
kcal/mol/HA
Fit Quality
-10.14
FQ (Leeson)
HAC
23
heavy atoms
MW
313
Da
LogP
4.92
cLogP
Strain ΔE
4.5 kcal/mol
SASA buried
93%
Lipo contact
80% BSA apolar/total
SASA unbound
543 Ų
Apolar buried
404 Ų

Interaction summary

HB 2 HY 23 PI 1 CLASH 2
Final rank0.422Score-26.431
Inter norm-1.180Intra norm0.031
Top1000noExcludedno
Contacts16H-bonds2
Artifact reasongeometry warning; 10 clashes; 3 protein contact clashes; 1 cofactor-context clash
Residues
ALA10 GLU31 ILE61 ILE8 LEU23 LEU28 NAP201 PHE32 PHE35 PRO27 SER60 THR57 TRP25 TYR122 VAL116 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
Jaccard0.54RMSD-
HB strict1Strict recall0.20
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
196 -0.09129784545088215 -1.41659 -33.5409 1 15 0 0.00 0.00 - no Open
276 0.4221779857226626 -1.17972 -26.4315 2 16 13 0.62 0.20 - no Current
234 1.3950006973288718 -1.23773 -27.9298 2 16 0 0.00 0.00 - no Open
177 1.5110784718979842 -1.28616 -29.4076 2 17 0 0.00 0.00 - no Open
303 1.7107350648349646 -1.01387 -22.7081 4 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 -26.431kcal/mol
Ligand efficiency (LE) -1.1492kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.143
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 313.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.92
Lipinski: ≤ 5
Rotatable bonds 2

Conformational strain (MMFF94s)

Strain energy (ΔE) 4.48kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 59.05kcal/mol
Minimised FF energy 54.56kcal/mol

SASA & burial

✓ computed
SASA (unbound) 543.3Ų
Total solvent-accessible surface area of free ligand
BSA total 504.9Ų
Buried surface area upon binding
BSA apolar 404.1Ų
Hydrophobic contacts buried
BSA polar 100.8Ų
Polar contacts buried
Fraction buried 92.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1483.7Ų
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 634.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)