FAIRMol

ulfkktlib_1030

Pose ID 4228 Compound 2754 Pose 165

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand ulfkktlib_1030
PDB6RX6

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 medium Native strong SASA done
Strain ΔE
32.9 kcal/mol
Protein clashes
1
Internal clashes
3
Native overlap
contact recall 0.63, Jaccard 0.63, H-bond role recall 0.40
Burial
96%
Hydrophobic fit
65%
Reason: no major geometry red flags detected
1 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.628 kcal/mol/HA) ✓ Good fit quality (FQ -13.35) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ Very high strain energy (32.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-30.940
kcal/mol
LE
-1.628
kcal/mol/HA
Fit Quality
-13.35
FQ (Leeson)
HAC
19
heavy atoms
MW
270
Da
LogP
-2.77
cLogP
Strain ΔE
32.9 kcal/mol
SASA buried
96%
Lipo contact
65% BSA apolar/total
SASA unbound
445 Ų
Apolar buried
278 Ų

Interaction summary

HB 8 HY 11 PI 3 CLASH 3
Final rank0.524Score-30.940
Inter norm-1.819Intra norm0.190
Top1000noExcludedno
Contacts12H-bonds8
Artifact reasongeometry warning; 7 clashes; 1 protein clash; 9 cofactor-context clashes; high strain Δ 32.9
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 MET213 NAP301 PHE97 PRO210 SER95 TRP221 TYR174

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap12Native recall0.63
Jaccard0.63RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
165 0.5237915164585943 -1.81857 -30.9399 8 12 12 0.63 0.40 - no Current
139 1.7889759098987879 -1.43382 -22.865 11 15 0 0.00 0.00 - no Open
120 4.736246694260704 -1.28581 -18.3183 15 17 0 0.00 0.00 - no Open
172 5.887796265338407 -1.75872 -32.4153 16 16 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 -30.940kcal/mol
Ligand efficiency (LE) -1.6284kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.348
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 270.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) -2.77
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 105.63kcal/mol
Minimised FF energy 72.70kcal/mol

SASA & burial

✓ computed
SASA (unbound) 444.6Ų
Total solvent-accessible surface area of free ligand
BSA total 427.6Ų
Buried surface area upon binding
BSA apolar 278.3Ų
Hydrophobic contacts buried
BSA polar 149.3Ų
Polar contacts buried
Fraction buried 96.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1423.8Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 919.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)