FAIRMol

Z275022726

Pose ID 4440 Compound 2824 Pose 377

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 Z275022726
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Strong hit SASA cached
Strong candidate with consistent geometry
Binding strong Geometry medium Native strong SASA done
Strain ΔE
14.4 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.63, Jaccard 0.52, H-bond role recall 0.20
Burial
98%
Hydrophobic fit
64%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Strong hit Multiple positive indicators. High-priority candidate for follow-up.
✓ Excellent LE (-1.337 kcal/mol/HA) ✓ Good fit quality (FQ -11.61) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Moderate strain (14.4 kcal/mol)
Score
-29.426
kcal/mol
LE
-1.337
kcal/mol/HA
Fit Quality
-11.61
FQ (Leeson)
HAC
22
heavy atoms
MW
333
Da
LogP
2.74
cLogP
Strain ΔE
14.4 kcal/mol
SASA buried
98%
Lipo contact
64% BSA apolar/total
SASA unbound
559 Ų
Apolar buried
352 Ų

Interaction summary

HB 7 HY 23 PI 3 CLASH 4

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 rank1.203Score-29.426
Inter norm-1.441Intra norm0.104
Top1000noExcludedno
Contacts16H-bonds7
Artifact reason1 protein clash
Residues
ARG14 ASN175 ASP161 CYS168 GLY205 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TYR174 VAL164 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 overlap12Native recall0.63
Jaccard0.52RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
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
377 1.203407316066101 -1.44123 -29.4257 7 16 12 0.63 0.20 - no Current
364 1.4803074616739718 -1.45342 -33.2394 6 16 0 0.00 0.00 - no Open
429 1.546574384664465 -0.993888 -21.6201 6 12 0 0.00 0.00 - no Open
409 2.0041694598625175 -1.07628 -20.4611 8 11 0 0.00 0.00 - no Open
389 2.5970311124973797 -1.1137 -24.5546 5 15 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 -29.426kcal/mol
Ligand efficiency (LE) -1.3375kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.612
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 333.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.74
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.41kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 19.70kcal/mol
Minimised FF energy 5.29kcal/mol

SASA & burial

✓ computed
SASA (unbound) 558.7Ų
Total solvent-accessible surface area of free ligand
BSA total 547.7Ų
Buried surface area upon binding
BSA apolar 352.4Ų
Hydrophobic contacts buried
BSA polar 195.4Ų
Polar contacts buried
Fraction buried 98.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1490.2Ų
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 924.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)