Structure of PDB 4b1d Chain A

Receptor sequence
>4b1dA (length=376) Species: 9606 (Homo sapiens) [Search protein sequence]
GSFVEMVDNLRGKSGQGYYVEMTVGSPPQTLNILVDTGSSNFAVGAAPHP
FLHRYYQRQLSSTYRDLRKGVYVPYTQGKWEGELGTDLVSIPHGPNVTVR
ANIAAITESDKFFINGSNWEGILGLAYAEIARPDDSLEPFFDSLVKQTHV
PNLFSLQLCGAVGGSMIIGGIDHSLYTGSLWYTPIRREWYYEVIIVRVEI
NGQDLKMDCKEYNYDKSIVDSGTTNLRLPKKVFEAAVKSIKAASSTEKFP
DGFWLGEQLVCWQAGTTPWNIFPVISLYLMGEVTNQSFRITILPQQYLRP
VEDVATSQDDCYKFAISQSSTGTVMGAVIMEGFYVVFDRARKRIGFAVSA
CHVHDEFRTAAVEGPFVTLDMEDCGY
3D structure
PDB4b1d New aminoimidazoles as beta-secretase (BACE-1) inhibitors showing amyloid-beta (A beta ) lowering in brain.
ChainA
Resolution1.95 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D32 S35 N37 A39 Y71 D228 T231
Catalytic site (residue number reindexed from 1) D36 S39 N41 A43 Y75 D220 T223
Enzyme Commision number 3.4.23.46: memapsin 2.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 6TG A Q12 D32 W76 F108 I110 I118 D228 G230 Q16 D36 W80 F112 I114 I122 D220 G222 MOAD: ic50=0.012uM
PDBbind-CN: -logKd/Ki=7.49,IC50=0.032uM
Gene Ontology
Molecular Function
GO:0004190 aspartic-type endopeptidase activity
Biological Process
GO:0006508 proteolysis
Cellular Component
GO:0016020 membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4b1d, PDBe:4b1d, PDBj:4b1d
PDBsum4b1d
PubMed23017051
UniProtP56817|BACE1_HUMAN Beta-secretase 1 (Gene Name=BACE1)

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