Annotations: 3PBH

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3pbha_	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Papain-like	(Pro)cathepsin B	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	SCOP2B Superfamily	Cysteine proteinases	8042211	3001808	SCOP2B (2022-02-25)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.70.10	Alpha Beta	Alpha-Beta Complex	Cathepsin B	Chain A	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A	PF00112	Papain family cysteine protease (Peptidase_C1)	Papain family cysteine protease	-	Domain
A	PF08127	Peptidase family C1 propeptide (Propeptide_C1)	Peptidase family C1 propeptide	-	Motif

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROCATHEPSIN B	binding collagen binding protein-containing complex binding catalytic activity endopeptidase activity cysteine-type endopeptidase activity peptidase activity cysteine-type peptidase activity hydrolase activity catalytic activity, acting on a protein protein binding proteoglycan binding carbohydrate derivative binding	response to endogenous stimulus response to hormone cellular process response to organic substance cellular response to hormone stimulus response to chemical response to stimulus cellular response to stimulus cellular response to chemical stimulus cellular response to organic substance cellular response to endogenous stimulus response to thyroid hormone cellular response to thyroid hormone stimulus metabolic process catabolic process collagen catabolic process collagen metabolic process tissue development cell differentiation epithelial cell differentiation developmental process anatomical structure development cellular developmental process epithelium development regulation of catalytic activity biological regulation regulation of molecular function viral process viral life cycle movement in host biological process involved in symbiotic interaction entry into host biological process involved in interspecies interaction between organisms viral entry into host cell biological process involved in interaction with host	plasma membrane membrane apical plasma membrane apical part of cell cell periphery plasma membrane region cellular anatomical entity external encapsulating structure extracellular matrix collagen-containing extracellular matrix external side of plasma membrane cell surface side of membrane extracellular region extracellular space vesicle organelle membrane-bounded organelle extracellular organelle extracellular membrane-bounded organelle extracellular exosome extracellular vesicle intracellular anatomical structure cytoplasm endomembrane system secretory granule cytoplasmic vesicle membrane-enclosed lumen intracellular organelle intracellular membrane-bounded organelle organelle lumen intracellular organelle lumen intracellular vesicle secretory vesicle ficolin-1-rich granule ficolin-1-rich granule lumen melanosome pigment granule nucleus nucleolus nuclear lumen non-membrane-bounded organelle intracellular non-membrane-bounded organelle perinuclear region of cytoplasm

RCSB PDB is funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.