DEFB4A report

I. Expression across cell types

Insufficient scRNA-seq data for expression of DEFB4A at single-cell level.

II. Expression across tissues

sc-RNAseq data

Insufficient scRNA-seq data for expression of DEFB4A at tissue level.

III. Associated gene sets

GO_0050832Biological processdefense response to fungus
GO_0061760Biological processantifungal innate immune response
GO_0050918Biological processpositive chemotaxis
GO_0050829Biological processdefense response to Gram-negative bacterium
GO_0006935Biological processchemotaxis
GO_0006955Biological processimmune response
GO_0031640Biological processkilling of cells of another organism
GO_0007186Biological processG protein-coupled receptor signaling pathway
GO_0050830Biological processdefense response to Gram-positive bacterium
GO_0042742Biological processdefense response to bacterium
GO_0061844Biological processantimicrobial humoral immune response mediated by antimicrobial peptide
GO_0060326Biological processcell chemotaxis
GO_0005615Cellular componentextracellular space
GO_0005576Cellular componentextracellular region
GO_0005796Cellular componentGolgi lumen
GO_0005546Molecular functionphosphatidylinositol-4,5-bisphosphate binding
GO_0042056Molecular functionchemoattractant activity
GO_0005515Molecular functionprotein binding
GO_0031731Molecular functionCCR6 chemokine receptor binding

IV. Literature review

[source]
Gene nameDEFB4A
Protein nameDefensin beta 4A (Beta-defensin 2) (BD-2) (hBD-2) (Defensin, beta 2) (Skin-antimicrobial peptide 1) (SAP1)
SynonymsDEFB102
DEFB4B
DEFB2
DEFB4;
DescriptionFUNCTION: Exhibits antimicrobial activity against Gram-negative bacteria and Gram-positive bacteria, with highest activity against Gram-negative bacteria . Antimicrobial activity against P.aruginosa seems to be salt-sensitive and is reduced with high salt concentrations greater than 25 mM . Also exhibits antimicrobial activity against the yeast C.albicans . Permeabilizes C.albicans cell membranes via targeting plasma membrane lipid phosphatidylinositol 4,5-bisphosphate (PIP2), thereby leading to cell fragmentation and cell death . Acts as a ligand for C-C chemokine receptor CCR6 . Binds to CCR6 and induces chemotactic activity of CCR6-expressing cells, such as immature dendritic cells and memory T cells . .

AccessionsO15263
ENST00000318157.3
ENST00000302247.3
ENST00000642856.2
ENST00000617136.2
ENST00000644124.2