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

36OM_A

Isoform 2B of GTPase KRas · P01116 · RCSB 36OM · AF-P01116-F1 (v6)

0.9769

TM-score

0.9541

lDDT

0.701

Cα-RMSD Å

95.14

mean pLDDT

0.0309

FRAUD score

99.4%

novelty (max id)

Per-domain breakdown

Source	Domain	Range	Residues	TM	RMSD Å	mean Cα Δ	Name
PAE	PAE:1-189	1-189	167	0.9825	0.701	0.499

All metrics

Global fold agreement

TM-score (norm. experiment)	0.9769
TM-score (norm. model)	0.8698
TM-score (norm. shorter)	0.9769
TM-score (norm. longer)	0.8698
Cα-RMSD (Å)	0.701
backbone-RMSD (Å)	0.676
all-atom-RMSD (Å)	1.298
core-RMSD (Å)	0.552
core fraction	0.988
GDT_TS	97.46
GDT_HA	88.62
MaxSub	0.9872
structural overlap (3.5 Å)	0.988

Local, superposition-free

lDDT	0.9541
contact-map Jaccard	0.8869
contact precision	0.9265
contact recall	0.9539
distance-matrix mean Δ (Å)	0.349
CAD-score (approx)	0.8975

Backbone & secondary structure

SS agreement Q3 (%)	95.21
mean Δφ (°)	7.8
mean Δψ (°)	8.5
torsion within 30° (frac)	0.9401
Rg experiment (Å)	14.56
Rg model (Å)	14.51
ΔRg (Å)	0.05

Confidence calibration

mean pLDDT	95.14
pLDDT↔lDDT Pearson	0.6366
pLDDT↔lDDT Spearman	0.6215
PAE↔observed Pearson	0.3678
PAE overconfident frac	0.0
mean PAE (Å)	4.285
mean observed error (Å)	0.347

Context & headline

coverage of model	0.8836
coverage of experiment	0.994
seq identity aligned (%)	96.41
confidently-wrong residue frac	0.006
FRAUD score	0.0309

Deposited 2026-06-23 · released 2026-07-01 · X-ray · 1.25 Å · closest pre-cutoff chain: 2MSC_2