FAIRMol

MK2

Pose ID 6276 Compound 1421 Pose 180

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand MK2

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 medium Native strong SASA done
Strain ΔE
29.4 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.71, Jaccard 0.60, H-bond role recall 0.27
Burial
63%
Hydrophobic fit
74%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.502 kcal/mol/HA) ✓ Good fit quality (FQ -4.98) ✓ Strong H-bond network (11 bonds) ✓ Good burial (63% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ High strain energy (29.4 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (14)
Score
-16.563
kcal/mol
LE
-0.502
kcal/mol/HA
Fit Quality
-4.98
FQ (Leeson)
HAC
33
heavy atoms
MW
455
Da
LogP
2.76
cLogP
Strain ΔE
29.4 kcal/mol
SASA buried
63%
Lipo contact
74% BSA apolar/total
SASA unbound
782 Ų
Apolar buried
364 Ų

Interaction summary

HB 11 HY 7 PI 1 CLASH 5

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 rank2.046Score-16.563
Inter norm-0.750Intra norm0.248
Top1000noExcludedno
Contacts15H-bonds11
Artifact reasongeometry warning; 14 clashes; 8 protein contact clashes; moderate strain Δ 29.3
Residues
ALA15 ALA16 ALA18 ARG116 ASN106 ASP13 CYS72 GLY73 GLY77 HIS105 HIS14 LEU101 THR74 TYR17 TYR49

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap12Native recall0.71
Jaccard0.60RMSD-
HB strict4Strict recall0.31
HB same residue+role3HB role recall0.27
HB same residue5HB residue recall0.45

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
180 2.046354722427361 -0.749937 -16.5629 11 15 12 0.71 0.27 - no Current
347 3.25175569300742 -0.737114 -16.4763 7 18 0 0.00 0.00 - no Open
297 3.668218072816871 -0.887797 -29.7642 5 12 0 0.00 0.00 - no Open
275 4.852476672583878 -0.682875 -16.7105 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 -16.563kcal/mol
Ligand efficiency (LE) -0.5019kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.980
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 454.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.76
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 29.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 58.10kcal/mol
Minimised FF energy 28.73kcal/mol

SASA & burial

✓ computed
SASA (unbound) 782.5Ų
Total solvent-accessible surface area of free ligand
BSA total 492.9Ų
Buried surface area upon binding
BSA apolar 363.7Ų
Hydrophobic contacts buried
BSA polar 129.3Ų
Polar contacts buried
Fraction buried 63.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2369.6Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 680.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)