FAIRMol

Z49724748

Pose ID 14796 Compound 42 Pose 558

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T22
L. donovani rab5a L. donovani
Ligand Z49724748

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
32.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 1.00, Jaccard 0.91, H-bond role recall 0.36
Burial
86%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 53% of hydrophobic surface appears solvent-exposed (9/17 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.374 kcal/mol/HA) ✓ Good fit quality (FQ -12.49) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Very high strain energy (32.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-34.360
kcal/mol
LE
-1.374
kcal/mol/HA
Fit Quality
-12.49
FQ (Leeson)
HAC
25
heavy atoms
MW
425
Da
LogP
4.27
cLogP
Strain ΔE
32.9 kcal/mol
SASA buried
86%
Lipo contact
78% BSA apolar/total
SASA unbound
646 Ų
Apolar buried
435 Ų

Interaction summary

HB 11 HY 10 PI 1 CLASH 3 ⚠ Exposure 52%
⚠️Partial hydrophobic solvent exposure
53% of hydrophobic surface appears solvent-exposed (9/17 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 17 Buried (contacted) 8 Exposed 9 LogP 4.27 H-bonds 11
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (3 atoms exposed)
Final rank4.774Score-34.360
Inter norm-1.422Intra norm0.047
Top1000noExcludedno
Contacts23H-bonds11
Artifact reasongeometry warning; 10 clashes; 4 protein clashes; high strain Δ 32.9
Residues
ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 GLY71 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 SER27 SER28 THR44

Protein summary

165 residues
Protein targetT22Atoms2561
Residues165Chains1
Residue summaryLEU:363; LYS:242; ALA:231; ARG:214; ILE:190; GLU:180; VAL:144; SER:143; PHE:140; ASN:112; THR:112; TYR:105; GLN:102; ASP:96; GLY:77; TRP:48

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameRAB5AContacts21
PoseOpen native poseHB0
IFP residues
ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 SER27 SER28
Current overlap21Native recall1.00
Jaccard0.91RMSD-
HB strict5Strict recall0.33
HB same residue+role4HB role recall0.36
HB same residue4HB residue recall0.36

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
535 0.5554742205459879 -1.57398 -38.7698 15 16 0 0.00 0.00 - no Open
542 0.6301361565626356 -1.41362 -35.0467 13 20 0 0.00 0.00 - no Open
576 0.6491852433386276 -1.04323 -28.2743 6 16 0 0.00 0.00 - no Open
560 1.7385138815859185 -1.20275 -30.8924 10 14 0 0.00 0.00 - no Open
573 1.9408338434310477 -0.934882 -24.3666 8 14 0 0.00 0.00 - no Open
546 2.12496165439863 -1.12048 -28.9632 5 14 0 0.00 0.00 - no Open
573 2.1723358672917747 -0.917446 -22.622 4 14 0 0.00 0.00 - no Open
538 2.531466557515543 -1.11611 -27.7407 6 11 0 0.00 0.00 - no Open
551 3.031535954686285 -1.17336 -28.1011 5 18 0 0.00 0.00 - no Open
560 3.1524960599292062 -0.864105 -19.5566 5 10 0 0.00 0.00 - no Open
541 3.5786835219571276 -1.12988 -25.5305 10 18 0 0.00 0.00 - no Open
558 4.774003563882817 -1.42174 -34.3602 11 23 21 1.00 0.36 - no Current
567 5.672682983004134 -1.08344 -23.3257 13 17 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 -34.360kcal/mol
Ligand efficiency (LE) -1.3744kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.495
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 425.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.27
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.87kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 110.58kcal/mol
Minimised FF energy 77.71kcal/mol

SASA & burial

✓ computed
SASA (unbound) 645.7Ų
Total solvent-accessible surface area of free ligand
BSA total 558.4Ų
Buried surface area upon binding
BSA apolar 435.3Ų
Hydrophobic contacts buried
BSA polar 123.1Ų
Polar contacts buried
Fraction buried 86.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1368.2Ų
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 1368.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 505.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)