Annotations: 5KI9

Crystal structure of human beta-defensin 4 (HBD4)

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	ECH_1	e5ki9A1	A: beta barrels	X: P-loop domains-like	H: Immunoglobulin-related	T: HAD-like	F: ECH_1	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13841	Beta defensin (Defensin_beta_2)	Beta defensin	The beta defensins are antimicrobial peptides implicated in the resistance of epithelial surfaces to microbial colonisation [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Beta-defensin 104	molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity chemoattractant activity signaling receptor activator activity	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus defense response to Gram-negative bacterium response to biotic stimulus defense response to bacterium response to bacterium response to stress response to external biotic stimulus immune response defense response to symbiont immune system process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus defense response to Gram-negative bacterium response to biotic stimulus defense response to bacterium response to bacterium response to stress response to external biotic stimulus immune response defense response to symbiont immune system process defense response to other organism innate immune response positive chemotaxis chemotaxis taxis response to chemical locomotion cell chemotaxis cellular response to stimulus monocyte chemotaxis leukocyte migration cellular response to chemical stimulus mononuclear cell migration myeloid leukocyte migration cell migration cellular process cell motility leukocyte chemotaxis defense response to Gram-positive bacterium response to ketone response to lipid response to alcohol response to oxygen-containing compound cellular response to oxygen-containing compound response to phorbol 13-acetate 12-myristate cellular response to alcohol cellular response to phorbol 13-acetate 12-myristate cellular response to lipid cellular response to ketone	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR025933	Beta-defensin domain	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

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

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	MLY	Parent Component: LYS : AA0075 : N6,N6-dimethyl-L-lysine MOD:00084

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.