FAIRMol

ulfkktlib_2829

Pose ID 4262 Compound 2797 Pose 199

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_2829
PDB6RX6

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
36.8 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.58, Jaccard 0.48, H-bond role recall 0.60
Burial
98%
Hydrophobic fit
80%
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 (-0.807 kcal/mol/HA) ✓ Good fit quality (FQ -7.23) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Very high strain energy (36.8 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (12)
Score
-19.363
kcal/mol
LE
-0.807
kcal/mol/HA
Fit Quality
-7.23
FQ (Leeson)
HAC
24
heavy atoms
MW
325
Da
LogP
3.56
cLogP
Strain ΔE
36.8 kcal/mol
SASA buried
98%
Lipo contact
80% BSA apolar/total
SASA unbound
560 Ų
Apolar buried
441 Ų

Interaction summary

HB 7 HY 24 PI 3 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 rank1.138Score-19.363
Inter norm-1.319Intra norm0.512
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 12 clashes; 6 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 36.8
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TRP221 TYR174 VAL164

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 overlap11Native recall0.58
Jaccard0.48RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
200 0.9132325325014069 -1.31813 -19.327 7 15 11 0.58 0.60 - no Open
199 1.1378310382162637 -1.3189 -19.3634 7 15 11 0.58 0.60 - no Current
140 4.666473282081455 -1.15375 -19.4058 12 18 0 0.00 0.00 - no Open
141 4.801771079425625 -1.16696 -19.3749 12 18 0 0.00 0.00 - no Open
139 5.279794615111347 -1.07645 -19.3265 14 18 0 0.00 0.00 - no Open
138 55.271013068925846 -1.05262 -18.8631 14 18 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 -19.363kcal/mol
Ligand efficiency (LE) -0.8068kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.231
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 325.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.56
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 36.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.63kcal/mol
Minimised FF energy 8.85kcal/mol

SASA & burial

✓ computed
SASA (unbound) 559.8Ų
Total solvent-accessible surface area of free ligand
BSA total 548.2Ų
Buried surface area upon binding
BSA apolar 441.3Ų
Hydrophobic contacts buried
BSA polar 106.9Ų
Polar contacts buried
Fraction buried 97.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1573.0Ų
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 921.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)