FAIRMol

MK155

Pose ID 8320 Compound 73 Pose 190

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T13
T. brucei ODC (Active site) T. brucei Active site
Ligand MK155
PDB1F3T

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
19.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.79, Jaccard 0.71, H-bond role recall 0.43
Burial
77%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.931 kcal/mol/HA) ✓ Good fit quality (FQ -8.98) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (77% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Moderate strain (19.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-27.927
kcal/mol
LE
-0.931
kcal/mol/HA
Fit Quality
-8.98
FQ (Leeson)
HAC
30
heavy atoms
MW
410
Da
LogP
4.14
cLogP
Strain ΔE
19.3 kcal/mol
SASA buried
77%
Lipo contact
79% BSA apolar/total
SASA unbound
659 Ų
Apolar buried
402 Ų

Interaction summary

HB 9 HY 10 PI 2 CLASH 1

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 rank2.394Score-27.927
Inter norm-1.012Intra norm0.081
Top1000noExcludedno
Contacts17H-bonds9
Artifact reasongeometry warning; 13 clashes; 1 protein clash
Residues
ALA67 ARG154 ARG277 ASP88 GLU274 GLY235 GLY236 GLY237 GLY276 HIS197 LYS69 PHE170 PHE238 PRO275 SER200 TYR278 TYR389

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1F3TContacts19
PoseOpen native poseHB0
IFP residues
ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap15Native recall0.79
Jaccard0.71RMSD-
HB strict5Strict recall0.56
HB same residue+role3HB role recall0.43
HB same residue4HB residue recall0.57

Protein summary

411 residues
Protein targetT13Atoms6340
Residues411Chains1
Residue summaryVAL:624; LEU:551; LYS:506; ARG:480; PHE:460; ILE:418; ASP:348; GLU:332; THR:322; TYR:315; PRO:308; ALA:290; SER:264; GLY:224; ASN:210; GLN:170

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
327 0.8171546905266917 -0.881496 -24.9437 2 19 0 0.00 0.00 - no Open
252 1.25262528314132 -0.815055 -21.9899 5 19 0 0.00 0.00 - no Open
190 2.393610264960986 -1.01227 -27.9274 9 17 15 0.79 0.43 - no Current
274 2.6728153685243323 -0.971128 -26.73 9 17 0 0.00 0.00 - no Open
228 3.509170011564179 -0.852226 -22.326 3 16 0 0.00 0.00 - no Open
296 3.6097912474495737 -0.80505 -19.7428 6 12 0 0.00 0.00 - no Open
294 3.8954333947123394 -0.850379 -23.5994 8 19 0 0.00 0.00 - no Open
204 3.980686356420171 -1.15557 -33.8409 13 17 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 -27.927kcal/mol
Ligand efficiency (LE) -0.9309kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.980
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 410.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.14
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 59.69kcal/mol
Minimised FF energy 40.43kcal/mol

SASA & burial

✓ computed
SASA (unbound) 658.5Ų
Total solvent-accessible surface area of free ligand
BSA total 505.9Ų
Buried surface area upon binding
BSA apolar 401.9Ų
Hydrophobic contacts buried
BSA polar 104.0Ų
Polar contacts buried
Fraction buried 76.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2619.9Ų
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 3461.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1376.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)