3R1G | pdb_00003r1g

Structure Basis of Allosteric Inhibition of BACE1 by an Exosite-Binding Antibody

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth L]	d3r1gl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth L]	d3r1gl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth B]	d3r1gb1	All beta proteins	Acid proteases	Acid proteases	Pepsin-like	beta-secretase (memapsin)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth B]	d3r1gb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	Acid proteases	8036280	3001059	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	Flavin_Reduct	e3r1gL1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Flavin_Reduct	ECOD (v294.1)
B [auth H]	Anemone_cytotox	e3r1gH1	A: a/b three-layered sandwiches	X: EF-hand	H: Insect pheromone/odorant-binding proteins	T: Insect pheromone/odorant-binding proteins	F: Anemone_cytotox	ECOD (v294.1)
A [auth B]	Vinculin	e3r1gB2	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Vinculin	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth B]	2.40.70.10	Mainly Beta	Beta Barrel	Cathepsin D, subunit A	domain 1	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C [auth L]	YW412.8.31 Fab	L-KAPPA	Homo sapiens (human)	IGKV1-1302, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)
B [auth H]	YW412.8.31 Fab	VH-CH1	Homo sapiens (human)	IGHV3-2304, IGHJ401, IGHJ402, IGHJ403, IGHG101, IGHG102, IGHG1*03	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV1	Kappa	beta-secretase 1	SAbDab (2026-03-27)
B [auth H]	Heavy Chain	IGHV3	-	beta-secretase 1	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF00026	Eukaryotic aspartyl protease (Asp)	Eukaryotic aspartyl protease	Aspartyl (acid) proteases include pepsins, cathepsins, and renins. Two-domain structure, probably arising from ancestral duplication. This family does not include the retroviral nor retrotransposon proteases (Pfam:PF00077), which are much smaller a ...	Aspartyl (acid) proteases include pepsins, cathepsins, and renins. Two-domain structure, probably arising from ancestral duplication. This family does not include the retroviral nor retrotransposon proteases (Pfam:PF00077), which are much smaller and appear to be homologous to a single domain of the eukaryotic asp proteases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	FAB of YW412.8.31 antibody light chain	-	-	-
B [auth H]	FAB of YW412.8.31 antibody heavy chain	-	-	-
A [auth B]	Beta-secretase 1	amyloid-beta binding binding peptide binding peptidase activity omega peptidase activity catalytic activity, acting on a protein threonine-type peptidase activity hydrolase activity beta-aspartyl-peptidase activity catalytic activity endopeptidase activity aspartic-type peptidase activity aspartic-type endopeptidase activity protein binding amyloid-beta binding binding peptide binding peptidase activity omega peptidase activity catalytic activity, acting on a protein threonine-type peptidase activity hydrolase activity beta-aspartyl-peptidase activity catalytic activity endopeptidase activity aspartic-type peptidase activity aspartic-type endopeptidase activity protein binding protein serine/threonine kinase binding kinase binding enzyme binding protein kinase binding	trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling presynaptic modulation of chemical synaptic transmission chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling presynaptic modulation of chemical synaptic transmission chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cellular process behavior multicellular organismal process locomotory behavior swimming behavior neuron apoptotic process positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process positive regulation of neuron apoptotic process programmed cell death positive regulation of cellular process regulation of neuron apoptotic process startle response system process response to stimulus nervous system process regulation of response to external stimulus neuromuscular process negative regulation of response to stimulus negative regulation of biological process prepulse inhibition response to external stimulus regulation of response to stimulus negative regulation of response to external stimulus amyloid precursor protein catabolic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process amyloid precursor protein metabolic process signaling receptor ligand precursor processing gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing amyloid-beta metabolic process response to hormone response to endogenous stimulus response to chemical response to insulin-like growth factor stimulus detection of external stimulus detection of mechanical stimulus involved in sensory perception of pain response to mechanical stimulus sensory perception of pain detection of mechanical stimulus involved in sensory perception sensory perception of mechanical stimulus detection of abiotic stimulus detection of stimulus sensory perception detection of mechanical stimulus response to abiotic stimulus detection of stimulus involved in sensory perception cellular component organization cellular component organization or biogenesis supramolecular fiber organization amyloid fibril formation cellular response to stimulus cellular response to metal ion cellular response to chemical stimulus response to metal ion cellular response to manganese ion response to manganese ion amyloid-beta formation response to copper ion cellular response to copper ion response to lead ion cellular response to nitrogen compound response to oxygen-containing compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound response to amyloid-beta membrane protein proteolysis membrane protein ectodomain proteolysis	cellular anatomical structure membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection membrane-bounded organelle vesicle lumen intracellular anatomical structure Golgi-associated vesicle lumen Golgi apparatus intracellular vesicle cellular anatomical structure membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection membrane-bounded organelle vesicle lumen intracellular anatomical structure Golgi-associated vesicle lumen Golgi apparatus intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle organelle lumen organelle cytoplasm Golgi-associated vesicle vesicle Golgi apparatus subcompartment organelle subcompartment trans-Golgi network endoplasmic reticulum lumen endoplasmic reticulum endosome recycling endosome endosome membrane cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane organelle membrane cell body neuronal cell body axon transport vesicle synapse presynapse synaptic vesicle cell junction secretory vesicle exocytic vesicle cell surface cell periphery plasma membrane membrane microdomain membrane raft late endosome multivesicular body lytic vacuole vacuole lysosome early endosome neuron to neuron synapse hippocampal mossy fiber to CA3 synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR009120	Beta-secretase BACE1	Family
A [auth B]	IPR033121	Peptidase family A1 domain	Domain
A [auth B]	IPR033874	Memapsin-like	Domain
A [auth B]	IPR001461	Aspartic peptidase A1	Family
A [auth B]	IPR009119	Beta-secretase BACE	Family
A [auth B]	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A [auth B]	IPR001969	Aspartic peptidase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B]	Pharos: P56817	Alzheimer disease pancreatic intraductal papillary-mucinous carcinoma Presenile dementia subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor lung cancer malignant pancreatic neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm psoriasis toxic encephalopathy Crohn disease interstitial lung disease malignant ependymoma pancreatic ductal adenocarcinoma Alzheimer disease pancreatic intraductal papillary-mucinous carcinoma Presenile dementia subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor lung cancer malignant pancreatic neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm psoriasis toxic encephalopathy Crohn disease interstitial lung disease malignant ependymoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia schizophrenia amyloidosis dementia large cell medulloblastoma malignant mesothelioma osteosarcoma

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.