All structures placed in the canonical TCR-pMHC frame (PCA: z=MHC->TCR, y=peptide,
x=thin axis) with chains renamed A=Valpha B=Vbeta C=peptide D=MHCa E=MHCb/b2m. Native2026
is the comprehensive 2026 TCR:pMHC set (374 originals, peptide-preserving, geometry-
validated). The lossy renumbered Tcr3d2026 CIFs are removed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Native2022: restore original 243 paper-era set; add Tcr3d2026 (TCR3D)
Native2022 reverts to the original 2022 paper PDB database (243 structures,
repo commit 840b843) after an over-broad expansion. The newer/expanded structures
are represented by the 2026 TCR3D set, added as Tcr3d2026/ (353 renumbered CIFs).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Native2022: expand to full 395-structure PDB set (paper superset)
Replace the 163-structure subset with the complete data/PDB_structures set
(239 paper-era + post-2022 additions), enabling TCRen rederivation on the full
non-redundant set. Add Native2022/*.pdb LFS glob.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
