Test structures
===============

1AKI: Very simple protein structure
1DIX: Structure contains insertion code
1F2N: Structure contains biological assembly
1GYA: Large multi-model structure
2AXD: Multi-model structure with different number of atoms per model
1IGY: Multi-chain structure
1L2Y: Very small and very simple multi-model structure
1O1Z: Structure contains negative residue IDs
3O5R: Structure contains altlocs
5H73: Structure contains residue with "'" in atom name
5UGO: Structure contains nucleotide
1QXB: Structure contains complimentary DNA-sequence
5UGO: Structure contains deoxynucleotide
4GXY: Structure contains ribonucleotide
1CCR: Multi-model structure with the first model ID not beeing 1
