4DV9

Crystal structure of BACE1 with its inhibitor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Beta-secretase 1	polymer	433	48222.9	1	UniProt (P56817) Pfam (PF00026)	Homo sapiens (human)	BACE1, 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	B (B)	METHYL (2S)-1-[(2R,5S,8S,12S,13S,16S,19S,22S)-16-(3-AMINO-3-OXOPROPYL)-2,13-DIBENZYL-12,22-DIHYDROXY-3,5,17-TRIMETHYL-8-(2-METHYLPROPYL)-4,7,10,15,18,21-HEXAOXO-19-(PROPAN-2-YL)-3,6,9,14,17,20-HEXAAZATRICOSAN-1-OYL]PYRROLIDINE-2-CARBOXYLATE (NON-PREFERRED NAME)	polymer	8	979.2	1	BIRD (PRD_000898)	synthetic construct
3	C, D, E, F (A)	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
4	G, H (A, B)	water	water		18.0	243	Chemie (HOH)

Sequence modifications

A: -18 - 393 (UniProt: P56817)

PDB	External Database	Details
Met -39	-	expression tag
Gly -38	-	expression tag
Ser -37	-	expression tag
Ser -36	-	expression tag
His -35	-	expression tag
His -34	-	expression tag
His -33	-	expression tag
His -32	-	expression tag
His -31	-	expression tag
His -30	-	expression tag
Ser -29	-	expression tag
Ala -28	-	expression tag
Gly -27	-	expression tag
Glu -26	-	expression tag
Asn -25	-	expression tag
Leu -24	-	expression tag
Tyr -23	-	expression tag
Phe -22	-	expression tag
Gln -21	-	expression tag
Gly -20	-	expression tag
Thr -19	-	expression tag
Ala 75	Lys 136	engineered mutation
Ala 77	Glu 138	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	49202.1
Non-Polymers*	Number of molecules	4
	Total formula weight	384.3
All*	Total formula weight	49586.3

*Water molecules are not included.