new PDB depositions vs. their blind AlphaFold predictions — a running test of "is folding solved?"

31IC_A

Excitatory amino acid transporter 3 · P43005 · RCSB 31IC · AF-P43005-F1 (v6)

0.6357
TM-score
0.7808
lDDT
10.441
Cα-RMSD Å
89.07
mean pLDDT
0.5581
FRAUD score
61.8%
novelty (max id)

Per-domain breakdown

SourceDomainRangeResiduesTMRMSD Åmean Cα ΔName
PAEPAE:1-5241-524 4230.4168 10.4419.696

All metrics

Global fold agreement

TM-score (norm. experiment)0.6357
TM-score (norm. model)0.5282
TM-score (norm. shorter)0.6357
TM-score (norm. longer)0.5282
Cα-RMSD (Å)10.441
backbone-RMSD (Å)10.419
all-atom-RMSD (Å)10.326
core-RMSD (Å)0.894
core fraction0.34
GDT_TS10.34
GDT_HA0.95
MaxSub0.8697
structural overlap (3.5 Å)0.0189

Local, superposition-free

lDDT0.7808
contact-map Jaccard0.6105
contact precision0.7187
contact recall0.8022
distance-matrix mean Δ (Å)5.13
CAD-score (approx)0.8817

Backbone & secondary structure

SS agreement Q3 (%)88.18
mean Δφ (°)10.7
mean Δψ (°)14.6
torsion within 30° (frac)0.8511
Rg experiment (Å)22.64
Rg model (Å)21.62
ΔRg (Å)1.02

Confidence calibration

mean pLDDT89.07
pLDDT↔lDDT Pearson0.4775
pLDDT↔lDDT Spearman0.6273
PAE↔observed Pearson0.6037
PAE overconfident frac0.0851
mean PAE (Å)8.941
mean observed error (Å)5.118

Context & headline

coverage of model0.8073
coverage of experiment1.0
seq identity aligned (%)99.76
confidently-wrong residue frac0.9078
FRAUD score0.5581

Deposited 2026-06-05 · released 2026-07-01 · EM · 3.5 Å · closest pre-cutoff chain: 5LLU_1