FAIRMol

MK47

Pose ID 324 Compound 584 Pose 324

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 MK47
PDB5SD8

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native mixed SASA done
Strain ΔE
19.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.33, Jaccard 0.28, H-bond role recall 0.00
Burial
85%
Hydrophobic fit
64%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.974 kcal/mol/HA) ✓ Good fit quality (FQ -8.73) ✓ Good H-bonds (4 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Moderate strain (19.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-23.385
kcal/mol
LE
-0.974
kcal/mol/HA
Fit Quality
-8.73
FQ (Leeson)
HAC
24
heavy atoms
MW
367
Da
LogP
3.19
cLogP
Strain ΔE
19.0 kcal/mol
SASA buried
85%
Lipo contact
64% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
343 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 2
Final rank3.498Score-23.385
Inter norm-1.156Intra norm0.181
Top1000noExcludedno
Contacts11H-bonds4
Artifact reasongeometry warning; 5 clashes; 3 protein clashes
Residues
ALA10 ARG29 GLU31 LEU23 LEU28 NAP201 PHE32 PHE35 PRO27 TRP25 VAL116

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 overlap7Native recall0.33
Jaccard0.28RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
184 0.31439389166778003 -1.40551 -32.0406 12 18 0 0.00 0.00 - no Open
285 0.7378236916649001 -1.07057 -19.17 10 13 0 0.00 0.00 - no Open
264 1.832378261869399 -1.13636 -21.5369 11 18 0 0.00 0.00 - no Open
324 3.4984978735652543 -1.15564 -23.385 4 11 7 0.33 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -23.385kcal/mol
Ligand efficiency (LE) -0.9744kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.732
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 366.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.19
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 24.64kcal/mol
Minimised FF energy 5.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 634.6Ų
Total solvent-accessible surface area of free ligand
BSA total 538.6Ų
Buried surface area upon binding
BSA apolar 343.0Ų
Hydrophobic contacts buried
BSA polar 195.6Ų
Polar contacts buried
Fraction buried 84.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 63.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1495.2Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 601.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)