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

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	E	HIV-1 PROTEASE	polymer	99	10786.7	1	UniProt (P03366) Pfam (PF00077) In PDB	Human immunodeficiency virus 1
2	E	methyl N-{(4S,5S)-5-[(L-alanyl-L-alanyl)amino]-4-hydroxy-6-phenylhexanoyl}-L-valyl-L-valinate	non-polymer		577.7	1	BIRD (PRD_000320) Chemie (PSI)
3		water	water		18.0	33	Chemie (HOH)

Sequence modifications

E: 1 - 99 (UniProt: P03366)

PDB	External Database	Details
Asn 36	Met 104	conflict

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	10786.7
Non-Polymers*	Number of molecules	1
	Total formula weight	577.7
All*	Total formula weight	11364.4

*Water molecules are not included.