1DFN

CRYSTAL STRUCTURE OF DEFENSIN HNP-3, AN AMPHIPHILIC DIMER: MECHANISMS OF MEMBRANE PERMEABILIZATION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dfna1	Small proteins	Defensin-like	Defensin-like	Defensin	Defensin HNP-3	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1dfna2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1dfnb1	Small proteins	Defensin-like	Defensin-like	Defensin	Defensin HNP-3	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1dfnb2	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	SCOP2 Family	Defensin	8026212	4003358	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Defensin-like	8038591	3000681	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Defensin-like	8038591	3000681	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)
A	Defensin_1	e1dfnA1	A: few secondary structure elements	X: Defensin-like	H: Defensin-related	T: Defensin-related	F: Defensin_1	ECOD (1.6)
B	Defensin_1	e1dfnB1	A: few secondary structure elements	X: Defensin-like	H: Defensin-related	T: Defensin-related	F: Defensin_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00323	Mammalian defensin (Defensin_1)	Mammalian defensin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	DEFENSIN HNP-3	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity	biological process involved in interspecies interaction between organisms innate immune response in mucosa response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus biological process involved in interspecies interaction between organisms innate immune response in mucosa response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus mucosal immune response organ or tissue specific immune response humoral immune response antimicrobial humoral response antimicrobial humoral immune response mediated by antimicrobial peptide defense response to fungus response to fungus cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing defense response to Gram-negative bacterium defense response to bacterium response to bacterium antibacterial humoral response cellular response to stimulus response to organic substance response to lipid cellular response to lipopolysaccharide response to oxygen-containing compound cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound cellular response to biotic stimulus cellular response to chemical stimulus response to chemical cellular response to lipid cellular response to organic substance response to molecule of bacterial origin defense response to virus response to virus regulation of cellular process intracellular receptor signaling pathway signaling intracellular estrogen receptor signaling pathway hormone-mediated signaling pathway cell communication cellular response to endogenous stimulus response to hormone response to steroid hormone signal transduction cellular response to steroid hormone stimulus response to organic cyclic compound cellular response to hormone stimulus regulation of biological process response to endogenous stimulus biological regulation cellular response to organic cyclic compound steroid hormone mediated signaling pathway nuclear receptor signaling pathway intracellular steroid hormone receptor signaling pathway disruption of cellular anatomical structure in another organism disruption of plasma membrane integrity in another organism defense response to Gram-positive bacterium	membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle organelle lumen organelle cytoplasm extracellular region membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle organelle lumen organelle cytoplasm extracellular region extracellular exosome extracellular vesicle extracellular organelle extracellular space vesicle extracellular membrane-bounded organelle lytic vacuole intracellular vesicle cytoplasmic vesicle lumen vacuolar lumen cytoplasmic vesicle lysosome vesicle lumen azurophil granule vacuole secretory granule lumen azurophil granule lumen secretory granule primary lysosome secretory vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006080	Beta/alpha-defensin, C-terminal	Domain
A, B	IPR016327	Alpha-defensin	Family
A, B	IPR006081	Alpha-defensin, C-terminal	Domain
A, B	IPR002366	Alpha-defensin, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P59666	acute promyelocytic leukemia IgA glomerulonephritis psoriasis

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Monotopic/peripheral	All beta monotopic/peripheral	Defensin-like	Vertebrate defensin

RCSB PDB Core Operations are 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.