# Test fixtures
These files are vendored from **ProDy** (https://github.com/prody/ProDy),
`prody/tests/datafiles/`, and are used here solely as a reference oracle for the
ANM implementation.
- `1ubi_ca.pdb` — Cα-only structure of ubiquitin (PDB 1UBI).
- `anm1ubi_hessian.coo` — reference ANM Hessian (cutoff 15 Å, γ = 1), sparse COO,
1-indexed `i j value`, symmetric (only one triangle stored).
- `anm1ubi_evalues.dat` — reference ANM eigenvalues (lowest 36), `index value`.
- `2gb1_truncated.pdb` — 28-residue Cα model with RTB block ids in the beta column.
- `rtb2gb1_hessian.coo` — reference RTB-reduced Hessian (`Pᵀ H P`, cutoff 15 Å, γ = 1),
sparse COO, 1-indexed `i j value`, symmetric.
- `crambin_heavy.pdb` — heavy atoms (no hydrogens) of crambin (PDB 1EJG), derived
from ProDy's `pdb1ejg.pdb` by dropping H and alternate locations.
- `crambin_heavy_isolated.pdb` — `crambin_heavy.pdb` plus one isolated carbon far
from the protein (degree 0 at the 5 Å cutoff), for the disconnected-atom drop
test. NOLB reports one disconnected atom on this input and the same frequencies
as crambin alone; the REMARK header records the details.
`nolb_crambin_freqs.txt` is **not** from ProDy: it holds reference frequencies
generated by the NOLB binary (Grudinin, Inria/CNRS) for `crambin_heavy.pdb`; the
exact command and version are recorded in that file's header.
ProDy is distributed under the MIT License:
> Copyright (C) 2010-2014 University of Pittsburgh
>
> Permission is hereby granted, free of charge, to any person obtaining a copy
> of this software and associated documentation files (the "Software"), to deal
> in the Software without restriction, including without limitation the rights
> to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> copies of the Software, and to permit persons to whom the Software is
> furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all
> copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.
The `elasticrab` crate itself is licensed under Apache-2.0; bundling these
MIT-licensed fixtures is compatible with that license.