FAIRMol

MK154

Pose ID 990 Compound 850 Pose 312

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T02
Human DHFR Human
Ligand MK154
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
16.5 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.71, Jaccard 0.58, H-bond role recall 0.20
Burial
84%
Hydrophobic fit
81%
Reason: 11 internal clashes
11 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.703 kcal/mol/HA) ✓ Good fit quality (FQ -6.98) ✓ Good H-bonds (3 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Moderate strain (16.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-23.213
kcal/mol
LE
-0.703
kcal/mol/HA
Fit Quality
-6.98
FQ (Leeson)
HAC
33
heavy atoms
MW
454
Da
LogP
4.80
cLogP
Final rank
1.8785
rank score
Inter norm
-0.820
normalised
Contacts
20
H-bonds 6
Strain ΔE
16.5 kcal/mol
SASA buried
84%
Lipo contact
81% BSA apolar/total
SASA unbound
772 Ų
Apolar buried
524 Ų

Interaction summary

HBD 2 HBA 1 HY 9 PI 2 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

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.

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 overlap15Native recall0.71
Jaccard0.58RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

200 residues
Protein targetT02Atoms3128
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
312 1.8785324969642387 -0.819961 -23.2134 6 20 15 0.71 0.20 - no Current
311 2.967949605782402 -0.819033 -23.4373 5 18 0 0.00 0.00 - no Open
246 3.0331589524195004 -0.821836 -17.4329 4 19 0 0.00 0.00 - no Open
203 3.640102018622275 -0.939659 -22.1306 10 17 0 0.00 0.00 - no Open
293 3.9414504185164767 -0.85226 -17.9278 8 19 0 0.00 0.00 - no Open
273 4.672890306994808 -0.790456 -21.9996 11 15 0 0.00 0.00 - no Open
295 4.857435612499224 -0.667031 -15.9508 7 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 -23.213kcal/mol
Ligand efficiency (LE) -0.7034kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.979
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 453.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.80
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 57.71kcal/mol
Minimised FF energy 41.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 772.2Ų
Total solvent-accessible surface area of free ligand
BSA total 648.5Ų
Buried surface area upon binding
BSA apolar 523.8Ų
Hydrophobic contacts buried
BSA polar 124.8Ų
Polar contacts buried
Fraction buried 84.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1715.0Ų
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 602.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)