FAIRMol

TC321

Pose ID 4288 Compound 1403 Pose 225

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 TC321
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
41.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.74, Jaccard 0.61, H-bond role recall 0.40
Burial
71%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.754 kcal/mol/HA) ✓ Good fit quality (FQ -7.83) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Extreme strain energy (41.4 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (14)
Score
-29.421
kcal/mol
LE
-0.754
kcal/mol/HA
Fit Quality
-7.83
FQ (Leeson)
HAC
39
heavy atoms
MW
530
Da
LogP
4.88
cLogP
Strain ΔE
41.4 kcal/mol
SASA buried
71%
Lipo contact
85% BSA apolar/total
SASA unbound
855 Ų
Apolar buried
515 Ų

Interaction summary

HB 7 HY 24 PI 4 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 rank1.284Score-29.421
Inter norm-0.814Intra norm0.060
Top1000noExcludedno
Contacts18H-bonds7
Artifact reasongeometry warning; 14 clashes; 3 protein contact clashes; 1 cofactor-context clash; high strain Δ 40.1
Residues
ALA212 ARG14 ASP161 CYS168 GLU217 GLY214 LEU208 LEU209 LYS220 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 TRP221 TYR174 TYR98

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 overlap14Native recall0.74
Jaccard0.61RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
225 1.2840366049662622 -0.814257 -29.4206 7 18 14 0.74 0.40 - no Current
269 3.471720513641678 -0.881205 -25.7326 5 20 0 0.00 0.00 - no Open
246 4.1004327543690335 -0.585103 -21.7902 11 19 0 0.00 0.00 - no Open
252 4.942069088058056 -0.597329 -19.5422 6 20 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 -29.421kcal/mol
Ligand efficiency (LE) -0.7544kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.829
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 529.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.88
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.36kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 118.81kcal/mol
Minimised FF energy 77.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 855.4Ų
Total solvent-accessible surface area of free ligand
BSA total 606.0Ų
Buried surface area upon binding
BSA apolar 515.3Ų
Hydrophobic contacts buried
BSA polar 90.7Ų
Polar contacts buried
Fraction buried 70.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1871.5Ų
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 941.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)