FAIRMol

Z44848695

Pose ID 4457 Compound 635 Pose 394

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 Z44848695
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 high Native strong SASA done
Strain ΔE
20.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.60
Burial
81%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Risk
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.019 kcal/mol/HA) ✓ Good fit quality (FQ -10.11) ✓ Good H-bonds (3 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ High strain energy (20.9 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (16)
Score
-33.638
kcal/mol
LE
-1.019
kcal/mol/HA
Fit Quality
-10.11
FQ (Leeson)
HAC
33
heavy atoms
MW
437
Da
LogP
4.18
cLogP
Final rank
1.5511
rank score
Inter norm
-1.110
normalised
Contacts
17
H-bonds 6
Strain ΔE
20.9 kcal/mol
SASA buried
81%
Lipo contact
79% BSA apolar/total
SASA unbound
703 Ų
Apolar buried
449 Ų

Interaction summary

HBD 3 HY 8 PI 6 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap13Native recall0.68
Jaccard0.57RMSD-
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
394 1.5511473651921004 -1.11002 -33.6375 6 17 13 0.68 0.60 - no Current
427 2.155713059795852 -0.809808 -29.0159 2 15 0 0.00 0.00 - no Open
429 2.2027243072175025 -0.596559 -19.3192 4 9 0 0.00 0.00 - no Open
400 2.3769900297927964 -0.864096 -29.2758 8 18 0 0.00 0.00 - no Open
477 2.5118889280486956 -0.921659 -28.9271 3 15 0 0.00 0.00 - no Open
423 2.6973180339470275 -0.991555 -32.4439 5 16 14 0.74 0.20 - no Open
512 2.878072317435572 -0.737357 -22.0076 5 13 0 0.00 0.00 - no Open
424 3.482811106572005 -0.747623 -32.1977 7 16 0 0.00 0.00 - no Open
447 3.985364387552201 -0.680606 -23.5838 2 13 0 0.00 0.00 - no Open
486 4.241488649191899 -0.865383 -24.9832 3 19 0 0.00 0.00 - no Open
420 5.506531047686867 -1.05786 -36.8603 15 25 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 -33.638kcal/mol
Ligand efficiency (LE) -1.0193kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.113
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 437.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.18
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.91kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 128.98kcal/mol
Minimised FF energy 108.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 702.7Ų
Total solvent-accessible surface area of free ligand
BSA total 570.2Ų
Buried surface area upon binding
BSA apolar 449.0Ų
Hydrophobic contacts buried
BSA polar 121.2Ų
Polar contacts buried
Fraction buried 81.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1679.0Ų
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 937.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)