4R91

BACE-1 in complex with (R)-4-(2-cyclohexylethyl)-4-(((1S,3R)-3-(cyclopentylamino)cyclohexyl)methyl)-1-methyl-5-oxoimidazolidin-2-iminium

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Beta-secretase 1	polymer	414	46249.9	2	UniProt (P56817) Pfam (PF00026)	Homo sapiens (human)	Aspartyl protease 2, ASP2, Asp 2, Beta-site amyloid precursor protein cleaving enzyme 1, Beta-site APP cleaving enzyme 1, Memapsin-2, Membrane-associated aspartic protease 2
2	C, E (A, B)	L(+)-TARTARIC ACID	non-polymer		150.1	2	Chemie (TLA)
3	D, F (A, B)	(2E,5R)-5-(2-cyclohexylethyl)-5-{[(1S,3R)-3-(cyclopentylamino)cyclohexyl]methyl}-2-imino-3-methylimidazolidin-4-one	non-polymer		402.6	2	Chemie (3KT)
4	G, H (A, B)	water	water		18.0	890	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	92499.9
Non-Polymers*	Number of molecules	4
	Total formula weight	1105.4
All*	Total formula weight	93605.3

*Water molecules are not included.