FAIRMol

ulfkktlib_3178

Pose ID 4273 Compound 2736 Pose 210

DB fairmolDocking 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_3178
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
15.6 kcal/mol
Protein clashes
0
Internal clashes
2
Native overlap
contact recall 0.53, Jaccard 0.48, H-bond role recall 0.80
Burial
95%
Hydrophobic fit
60%
Reason: no major geometry red flags detected
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.985 kcal/mol/HA) ✓ Good fit quality (FQ -15.52) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (95% SASA buried) ✗ Moderate strain (15.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-33.740
kcal/mol
LE
-1.985
kcal/mol/HA
Fit Quality
-15.52
FQ (Leeson)
HAC
17
heavy atoms
MW
229
Da
LogP
0.21
cLogP
Strain ΔE
15.6 kcal/mol
SASA buried
95%
Lipo contact
60% BSA apolar/total
SASA unbound
392 Ų
Apolar buried
221 Ų

Interaction summary

HB 6 HY 14 PI 2 CLASH 2

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 rank0.378Score-33.740
Inter norm-1.801Intra norm-0.184
Top1000noExcludedno
Contacts12H-bonds6
Artifact reasongeometry warning; 8 clashes; 1 protein clash; 1 severe cofactor-context clash
Residues
ALA96 ARG14 ASN127 LEU208 LEU209 LYS178 NAP301 PHE97 PRO210 SER95 TYR174 VAL206

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 overlap10Native recall0.53
Jaccard0.48RMSD-
HB strict3Strict recall0.50
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
210 0.37848073417416145 -1.80073 -33.7398 6 12 10 0.53 0.80 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -33.740kcal/mol
Ligand efficiency (LE) -1.9847kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -15.520
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 17HA

Physicochemical properties

Molecular weight 229.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.21
Lipinski: ≤ 5
Rotatable bonds 1

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.55kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 81.79kcal/mol
Minimised FF energy 66.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 391.9Ų
Total solvent-accessible surface area of free ligand
BSA total 371.2Ų
Buried surface area upon binding
BSA apolar 220.8Ų
Hydrophobic contacts buried
BSA polar 150.4Ų
Polar contacts buried
Fraction buried 94.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 59.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1356.7Ų
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 931.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)