Demo Dataset for PDB-IHM Workshop at IUCR2026

7ZNN IHMCIF demo — starting models This is a demonstration repository, not an authoritative data archive. It accompanies an IUCr 2026 demonstration of reformatting an existing PDB entry as an IHMCIF file for deposition to PDB-IHM. The worked example is PDB entry 7ZNN — the RCMV-E E27 / human DDB1(ΔBPB) / rat STAT2 complex — which is in fact an integrative structure (cryo-EM + crosslinking-MS predicted and crystallographic starting models) and therefore belongs in PDB-IHM. The only content here is the set of starting (input) models used by, or relevant to, that conversion. It exists so those models have a stable, citable location that the demonstration IHMCIF can reference. Nothing in this record is new science: every file is a copy of a model produced and published by others, redistributed unchanged for the demonstration's reproducibility. Reference for the structure: Le-Trilling et al., EMBO J (2023) 42:e112351, doi:10.15252/embj.2022112351.