1HEG

The crystal structures at 2.2 angstroms resolution of hydroxyethylene-based inhibitors bound to human immunodeficiency virus type 1 protease show that the inhibitors are present in two distinct orientations

Changes made to a PDB entry after its initial release are considered to be either “major” or “minor”. The latest minor version of each major version is available as a file download. More information about the PDB versioning is available.

Version Number	Version Date	Version Type/Reason	Version Change	Revised CIF Category
1.0	1994-05-31	Initial release
1.1	2008-05-22		Version format compliance
1.2	2011-07-13		Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
1.3	2012-12-12		Other
1.4	2017-11-29		Derived calculations, Other	pdbx_database_status, struct_conf, struct_conf_type
1.5	2024-02-07		Data collection, Database references, Derived calculations	chem_comp_atom, chem_comp_bond, database_2, struct_ref_seq_dif, struct_site
1.6	2024-03-13		Source and taxonomy, Structure summary	entity, pdbx_entity_src_syn	Download

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.