FAIRMol

MK211

Pose ID 5658 Compound 446 Pose 240

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T09
L. major DHFR-TS L. major
Ligand MK211

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
18.1 kcal/mol
Protein clashes
3
Internal clashes
11
Native overlap
contact recall 0.71, Jaccard 0.62, H-bond role recall 0.33
Burial
78%
Hydrophobic fit
80%
Reason: 11 internal clashes
3 protein-contact clashes 11 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.689 kcal/mol/HA) ✓ Good fit quality (FQ -6.83) ✓ Good H-bonds (5 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Moderate strain (18.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (11)
Score
-22.729
kcal/mol
LE
-0.689
kcal/mol/HA
Fit Quality
-6.83
FQ (Leeson)
HAC
33
heavy atoms
MW
452
Da
LogP
5.61
cLogP
Strain ΔE
18.1 kcal/mol
SASA buried
78%
Lipo contact
80% BSA apolar/total
SASA unbound
764 Ų
Apolar buried
481 Ų

Interaction summary

HB 5 HY 24 PI 3 CLASH 0
Final rank0.933Score-22.729
Inter norm-0.794Intra norm0.106
Top1000noExcludedno
Contacts18H-bonds5
Artifact reasongeometry warning; 11 clashes; 3 protein contact clashes; 1 cofactor-context clash
Residues
NDP301 ALA32 ARG48 ASP52 ILE45 LEU94 LYS57 MET53 PHE56 PHE91 PRO88 TRP47 TYR162 VAL156 VAL30 VAL31 VAL49 VAL87

Protein summary

511 residues
Protein targetT09Atoms8170
Residues511Chains2
Residue summaryLEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224

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:NDP301

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3CL9Contacts21
PoseOpen native poseHB0
IFP residues
NDP301 ALA32 ARG97 ASP52 GLY157 ILE45 LEU94 LYS57 MET53 PHE55 PHE56 PHE91 PRO88 SER86 THR180 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap15Native recall0.71
Jaccard0.62RMSD-
HB strict2Strict recall0.29
HB same residue+role2HB role recall0.33
HB same residue2HB residue recall0.33

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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
323 0.9281368038146153 -0.881859 -27.4888 7 19 0 0.00 0.00 - no Open
240 0.9326315971844619 -0.794452 -22.7292 5 18 15 0.71 0.33 - no Current
255 1.6709017941564726 -0.71887 -19.1442 4 18 1 0.05 0.00 - no Open
202 2.4158386797718454 -0.908111 -29.0361 6 17 0 0.00 0.00 - no Open
333 2.5964806201553707 -0.779283 -26.5781 4 18 0 0.00 0.00 - no Open
316 2.7681947305161128 -0.62579 -17.3714 9 11 0 0.00 0.00 - no Open
321 2.7847742168238394 -0.855996 -21.2829 7 16 1 0.05 0.00 - no Open
208 3.2737333179935955 -0.86353 -26.0064 11 21 0 0.00 0.00 - no Open
282 3.2908590644988394 -0.643978 -17.2385 5 17 0 0.00 0.00 - no Open
266 3.6696914491795702 -0.969686 -27.9485 9 18 0 0.00 0.00 - no Open
260 3.724512830525498 -0.752336 -20.2105 6 14 0 0.00 0.00 - no Open
306 4.479899767376692 -0.891979 -23.8503 8 21 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 -22.729kcal/mol
Ligand efficiency (LE) -0.6888kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.834
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 451.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.61
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.08kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.58kcal/mol
Minimised FF energy 27.50kcal/mol

SASA & burial

✓ computed
SASA (unbound) 763.9Ų
Total solvent-accessible surface area of free ligand
BSA total 598.8Ų
Buried surface area upon binding
BSA apolar 481.1Ų
Hydrophobic contacts buried
BSA polar 117.8Ų
Polar contacts buried
Fraction buried 78.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3416.2Ų
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 4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1648.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)