8PCH

CRYSTAL STRUCTURE OF PORCINE CATHEPSIN H DETERMINED AT 2.1 ANGSTROM RESOLUTION: LOCATION OF THE MINI-CHAIN C-TERMINAL CARBOXYL GROUP DEFINES CATHEPSIN H AMINOPEPTIDASE FUNCTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d8pch.1	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Papain-like	Cathepsin H	(Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
B [auth P]	d8pch.1	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Papain-like	Cathepsin H	(Sus scrofa ) [TaxId: 9823 ],	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	8066299	3001808	SCOP2B (2022-06-29)

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 (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00112	Papain family cysteine protease (Peptidase_C1)	Papain family cysteine protease	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CATHEPSIN H	thyroid hormone binding binding hormone binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity enzyme regulator activity thyroid hormone binding binding hormone binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity enzyme regulator activity enzyme activator activity peptidase regulator activity molecular function activator activity cysteine-type endopeptidase activator activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process peptidase activator activity peptidase activator activity involved in apoptotic process HLA-A specific activating MHC class I receptor activity activating MHC class I receptor activity MHC class I receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity immune receptor activity aminopeptidase activity exopeptidase activity	cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction regulation of programmed cell death positive regulation of apoptotic signaling pathway cell communication positive regulation of response to stimulus signal transduction positive regulation of cellular process cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction regulation of programmed cell death positive regulation of apoptotic signaling pathway cell communication positive regulation of response to stimulus signal transduction positive regulation of cellular process regulation of biological process regulation of signaling positive regulation of programmed cell death regulation of apoptotic process biological regulation cell death positive regulation of apoptotic process apoptotic signaling pathway regulation of response to stimulus regulation of cell communication cellular process apoptotic process programmed cell death positive regulation of signaling regulation of apoptotic signaling pathway protein destabilization regulation of protein stability regulation of biological quality multicellular organismal process multicellular organismal-level homeostasis chemical homeostasis homeostatic process multicellular organismal-level chemical homeostasis surfactant homeostasis immune response immune system process negative regulation of programmed cell death negative regulation of biological process negative regulation of apoptotic process negative regulation of cellular process regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process intracellular signal transduction intracellular signaling cassette MAPK cascade ERK1 and ERK2 cascade proteolysis membrane protein proteolysis primary metabolic process protein metabolic process catabolic process proteolysis involved in protein catabolic process protein catabolic process macromolecule catabolic process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains T cell mediated cytotoxicity lymphocyte mediated immunity T cell mediated immunity leukocyte mediated cytotoxicity adaptive immune response immune effector process leukocyte mediated immunity cell killing response to retinoic acid response to lipid response to chemical response to oxygen-containing compound branching morphogenesis of an epithelial tube respiratory tube development multicellular organism development tube morphogenesis anatomical structure development lung morphogenesis lung development respiratory system development animal organ morphogenesis epithelial tube morphogenesis system development developmental process epithelium development tube development animal organ development morphogenesis of an epithelium tissue development dichotomous subdivision of terminal units involved in lung branching tissue morphogenesis anatomical structure morphogenesis dichotomous subdivision of an epithelial terminal unit morphogenesis of a branching structure epithelial tube branching involved in lung morphogenesis morphogenesis of a branching epithelium regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity regulation of primary metabolic process positive regulation of molecular function regulation of proteolysis regulation of protein metabolic process regulation of peptidase activity positive regulation of catalytic activity regulation of molecular function positive regulation of hydrolase activity regulation of hydrolase activity positive regulation of proteolysis cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation regulation of developmental process angiogenesis regulation of vasculature development positive regulation of developmental process regulation of multicellular organismal process regulation of anatomical structure morphogenesis blood vessel development regulation of multicellular organismal development blood vessel morphogenesis positive regulation of angiogenesis vasculature development circulatory system development positive regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis positive regulation of multicellular organismal process positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion metanephros development kidney development renal system development cellular catabolic process neuropeptide catabolic process peptide metabolic process peptide catabolic process bradykinin catabolic process amide metabolic process zymogen activation protein maturation protein processing immune response-regulating signaling pathway regulation of immune response regulation of immune system process positive regulation of epithelial cell migration tissue migration ameboidal-type cell migration epithelial cell migration regulation of epithelial cell migration epithelium migration	membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure lamellar body cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure lamellar body cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle alveolar lamellar body cytosol lytic vacuole vacuole lysosome extracellular region extracellular space
B [auth P]	CATHEPSIN H	thyroid hormone binding binding hormone binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity enzyme regulator activity thyroid hormone binding binding hormone binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity enzyme regulator activity enzyme activator activity peptidase regulator activity molecular function activator activity cysteine-type endopeptidase activator activity involved in apoptotic process molecular function regulator activity cysteine-type endopeptidase regulator activity involved in apoptotic process peptidase activator activity peptidase activator activity involved in apoptotic process HLA-A specific activating MHC class I receptor activity activating MHC class I receptor activity MHC class I receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity immune receptor activity aminopeptidase activity exopeptidase activity	cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction regulation of programmed cell death positive regulation of apoptotic signaling pathway cell communication positive regulation of response to stimulus signal transduction positive regulation of cellular process cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction regulation of programmed cell death positive regulation of apoptotic signaling pathway cell communication positive regulation of response to stimulus signal transduction positive regulation of cellular process regulation of biological process regulation of signaling positive regulation of programmed cell death regulation of apoptotic process biological regulation cell death positive regulation of apoptotic process apoptotic signaling pathway regulation of response to stimulus regulation of cell communication cellular process apoptotic process programmed cell death positive regulation of signaling regulation of apoptotic signaling pathway protein destabilization regulation of protein stability regulation of biological quality multicellular organismal process multicellular organismal-level homeostasis chemical homeostasis homeostatic process multicellular organismal-level chemical homeostasis surfactant homeostasis immune response immune system process negative regulation of programmed cell death negative regulation of biological process negative regulation of apoptotic process negative regulation of cellular process regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process intracellular signal transduction intracellular signaling cassette MAPK cascade ERK1 and ERK2 cascade proteolysis membrane protein proteolysis primary metabolic process protein metabolic process catabolic process proteolysis involved in protein catabolic process protein catabolic process macromolecule catabolic process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains T cell mediated cytotoxicity lymphocyte mediated immunity T cell mediated immunity leukocyte mediated cytotoxicity adaptive immune response immune effector process leukocyte mediated immunity cell killing response to retinoic acid response to lipid response to chemical response to oxygen-containing compound branching morphogenesis of an epithelial tube respiratory tube development multicellular organism development tube morphogenesis anatomical structure development lung morphogenesis lung development respiratory system development animal organ morphogenesis epithelial tube morphogenesis system development developmental process epithelium development tube development animal organ development morphogenesis of an epithelium tissue development dichotomous subdivision of terminal units involved in lung branching tissue morphogenesis anatomical structure morphogenesis dichotomous subdivision of an epithelial terminal unit morphogenesis of a branching structure epithelial tube branching involved in lung morphogenesis morphogenesis of a branching epithelium regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity regulation of primary metabolic process positive regulation of molecular function regulation of proteolysis regulation of protein metabolic process regulation of peptidase activity positive regulation of catalytic activity regulation of molecular function positive regulation of hydrolase activity regulation of hydrolase activity positive regulation of proteolysis cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation regulation of developmental process angiogenesis regulation of vasculature development positive regulation of developmental process regulation of multicellular organismal process regulation of anatomical structure morphogenesis blood vessel development regulation of multicellular organismal development blood vessel morphogenesis positive regulation of angiogenesis vasculature development circulatory system development positive regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis positive regulation of multicellular organismal process positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion metanephros development kidney development renal system development cellular catabolic process neuropeptide catabolic process peptide metabolic process peptide catabolic process bradykinin catabolic process amide metabolic process zymogen activation protein maturation protein processing immune response-regulating signaling pathway regulation of immune response regulation of immune system process positive regulation of epithelial cell migration tissue migration ameboidal-type cell migration epithelial cell migration regulation of epithelial cell migration epithelium migration	membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure lamellar body cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure lamellar body cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle alveolar lamellar body cytosol lytic vacuole vacuole lysosome extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR025661	Cysteine peptidase, asparagine active site	Active Site
A	IPR000169	Cysteine peptidase, cysteine active site	Active Site
A	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A	IPR013128	Peptidase C1A	Family
A	IPR000668	Peptidase C1A, papain C-terminal	Domain
A	IPR013201	Cathepsin propeptide inhibitor domain (I29)	Domain
A	IPR025660	Cysteine peptidase, histidine active site	Active Site
A	IPR039417	Papain-like cysteine endopeptidase	Domain
B [auth P]	IPR025661	Cysteine peptidase, asparagine active site	Active Site
B [auth P]	IPR000169	Cysteine peptidase, cysteine active site	Active Site
B [auth P]	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
B [auth P]	IPR013128	Peptidase C1A	Family
B [auth P]	IPR000668	Peptidase C1A, papain C-terminal	Domain
B [auth P]	IPR013201	Cathepsin propeptide inhibitor domain (I29)	Domain
B [auth P]	IPR025660	Cysteine peptidase, histidine active site	Active Site
B [auth P]	IPR039417	Papain-like cysteine endopeptidase	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	cathepsin H M-CSA #682	Cathepsin H is a lysosomal cysteine protease, involved in intracellular protein degradation. It is the only known mono-aminopeptidase in the papain-like family and is reported to be involved in tumor metastasis. The enzyme is a relatively abundant protease involved in intracellular protein degradation. It has been proposed that the levels of Cathepsin increase during disease states. Cathepsin H is an aminopeptidase, cleaving a single N-terminal residue from a polypeptide chain. It has been shown that Cathepsin H also exhibits endopeptidase activity. The mature protein consists of three fragments; the N-terminal heavy and C-terminal light chains, and an octapeptide called the mini-chain.	Defined by 3 residues: GLN:A-20 [auth A-19]CYS:A-26 [auth A-25]HIS:A-166 [auth A-159] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.4.22.16 (PDB Primary Data) Search M-CSA Motif + EC 3.4.22.16

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.