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Aliases for DEFA3 Gene

Aliases for DEFA3 Gene

  • Defensin, Alpha 3, Neutrophil-Specific 2 3
  • HNP-3 3 4
  • DEF3 3 4
  • HP-3 3 4
  • HP3 3 4
  • Defensin 3, Neutrophil-Specific 3
  • Neutrophil Defensin 3 3
  • Neutrophil Peptide 3 3
  • Defensin, Alpha 3 4
  • HNP3 3

External Ids for DEFA3 Gene

Previous HGNC Symbols for DEFA3 Gene

  • DEF3

Previous GeneCards Identifiers for DEFA3 Gene

  • GC08M006918
  • GC08M007108
  • GC08M007033
  • GC08M006860
  • GC08M006875

Summaries for DEFA3 Gene

Entrez Gene Summary for DEFA3 Gene

  • Defensins are a family of antimicrobial and cytotoxic peptides thought to be involved in host defense. They are abundant in the granules of neutrophils and also found in the epithelia of mucosal surfaces such as those of the intestine, respiratory tract, urinary tract, and vagina. Members of the defensin family are highly similar in protein sequence and distinguished by a conserved cysteine motif. The protein encoded by this gene, defensin, alpha 3, is found in the microbicidal granules of neutrophils and likely plays a role in phagocyte-mediated host defense. Several alpha defensin genes are clustered on chromosome 8. This gene differs from defensin, alpha 1 by only one amino acid. This gene and the gene encoding defensin, alpha 1 are both subject to copy number variation. [provided by RefSeq, Oct 2014]

GeneCards Summary for DEFA3 Gene

DEFA3 (Defensin, Alpha 3, Neutrophil-Specific) is a Protein Coding gene. Diseases associated with DEFA3 include multidrug-resistant tuberculosis and bell's palsy. Among its related pathways are Defensins and Defensins. An important paralog of this gene is DEFA1B.

UniProtKB/Swiss-Prot for DEFA3 Gene

  • Defensin 2 and defensin 3 have antibiotic, fungicide and antiviral activities. Has antimicrobial activity against Gram-negative and Gram-positive bacteria. Defensins are thought to kill microbes by permeabilizing their plasma membrane.

Gene Wiki entry for DEFA3 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for DEFA3 Gene

Genomics for DEFA3 Gene

Regulatory Elements for DEFA3 Gene

Genomic Location for DEFA3 Gene

6,996,837 bp from pter
7,018,301 bp from pter
21,465 bases
Minus strand

Genomic View for DEFA3 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for DEFA3 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for DEFA3 Gene

Proteins for DEFA3 Gene

  • Protein details for DEFA3 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Neutrophil defensin 3
    Protein Accession:
    Secondary Accessions:
    • P11479
    • Q14125

    Protein attributes for DEFA3 Gene

    94 amino acids
    Molecular mass:
    10245 Da
    Quaternary structure:
    • Dimer.

    Three dimensional structures from OCA and Proteopedia for DEFA3 Gene

neXtProt entry for DEFA3 Gene

Proteomics data for DEFA3 Gene at MOPED

Post-translational modifications for DEFA3 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for DEFA3 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for DEFA3 Gene

Domains for DEFA3 Gene

Gene Families for DEFA3 Gene

  • DEFA :Defensins, alpha

Protein Domains for DEFA3 Gene

Suggested Antigen Peptide Sequences for DEFA3 Gene

Graphical View of Domain Structure for InterPro Entry



  • P59666
  • Belongs to the alpha-defensin family.
genes like me logo Genes that share domains with DEFA3: view

Function for DEFA3 Gene

Molecular function for DEFA3 Gene

GENATLAS Biochemistry: defensin alpha 3,3-4kDa,,hematopoietic,released from azurophil granules of neutrophiles,oxygen independent phagocytosis of Gram+,Gram- bacteria,many fungi,some viruses
UniProtKB/Swiss-Prot Function: Defensin 2 and defensin 3 have antibiotic, fungicide and antiviral activities. Has antimicrobial activity against Gram-negative and Gram-positive bacteria. Defensins are thought to kill microbes by permeabilizing their plasma membrane.

Gene Ontology (GO) - Molecular Function for DEFA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003674 molecular_function ND --
genes like me logo Genes that share ontologies with DEFA3: view

Phenotypes for DEFA3 Gene

GenomeRNAi human phenotypes for DEFA3:
genes like me logo Genes that share phenotypes with DEFA3: view

miRNA for DEFA3 Gene

miRTarBase miRNAs that target DEFA3

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targeting and HOMER Transcription for DEFA3 Gene

Localization for DEFA3 Gene

Subcellular locations from UniProtKB/Swiss-Prot for DEFA3 Gene


Subcellular locations from

Jensen Localization Image for DEFA3 Gene COMPARTMENTS Subcellular localization image for DEFA3 gene
Compartment Confidence
extracellular 5
golgi apparatus 4
lysosome 4
vacuole 4

Gene Ontology (GO) - Cellular Components for DEFA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region TAS --
GO:0005615 extracellular space IDA 12860195
GO:0005796 Golgi lumen TAS --
GO:0031012 extracellular matrix --
GO:0035578 azurophil granule lumen TAS --
genes like me logo Genes that share ontologies with DEFA3: view

Pathways for DEFA3 Gene

genes like me logo Genes that share pathways with DEFA3: view

Pathways by source for DEFA3 Gene

2 Reactome pathways for DEFA3 Gene
1 KEGG pathway for DEFA3 Gene

Interacting Proteins for DEFA3 Gene

Gene Ontology (GO) - Biological Process for DEFA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0002227 innate immune response in mucosa IDA 12860195
GO:0006935 chemotaxis --
GO:0006952 defense response --
GO:0006955 immune response --
GO:0019731 antibacterial humoral response IDA 12860195
genes like me logo Genes that share ontologies with DEFA3: view

Compounds for DEFA3 Gene

(3) Novoseek inferred chemical compound relationships for DEFA3 Gene

Compound -log(P) Hits PubMed IDs
hbd2 82.2 3
anti-fungal 11.3 1
arginine 0.342 2
genes like me logo Genes that share compounds with DEFA3: view

Transcripts for DEFA3 Gene

mRNA/cDNA for DEFA3 Gene

Unigene Clusters for DEFA3 Gene

Defensin, alpha 3, neutrophil-specific:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for DEFA3 Gene

No ASD Table

Relevant External Links for DEFA3 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for DEFA3 Gene

mRNA expression in normal human tissues for DEFA3 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for DEFA3 Gene

This gene is overexpressed in Whole Blood (48.5).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for DEFA3 Gene

SOURCE GeneReport for Unigene cluster for DEFA3 Gene Hs.654448

genes like me logo Genes that share expressions with DEFA3: view

No data available for mRNA Expression by UniProt/SwissProt for DEFA3 Gene

Orthologs for DEFA3 Gene

This gene was present in the common ancestor of human and chimp.

Orthologs for DEFA3 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia DEFA4 36
  • 67 (a)
Species with no ortholog for DEFA3:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • cow (Bos Taurus)
  • dog (Canis familiaris)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • lizard (Anolis carolinensis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • mouse (Mus musculus)
  • oppossum (Monodelphis domestica)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for DEFA3 Gene

Gene Tree for DEFA3 (if available)
Gene Tree for DEFA3 (if available)

Paralogs for DEFA3 Gene

Paralogs for DEFA3 Gene

Selected SIMAP similar genes for DEFA3 Gene using alignment to 2 proteins:

genes like me logo Genes that share paralogs with DEFA3: view

Variants for DEFA3 Gene

Sequence variations from dbSNP and Humsavar for DEFA3 Gene

SNP ID Clin Chr 08 pos Sequence Context AA Info Type MAF
rs2615770 -- 7,020,030(-) ATGGA(C/T)TGTGG upstream-variant-2KB
rs2615798 -- 7,018,018(-) CTAAA(A/C/T)ACACA intron-variant
rs2739218 -- 7,019,994(-) AGGAT(A/G)ACCCC upstream-variant-2KB
rs2979407 -- 7,020,045(-) AACAT(A/G)TACTG upstream-variant-2KB
rs4012962 -- 7,020,221(-) CTCAA(C/T)CCCAT upstream-variant-2KB

Structural Variations from Database of Genomic Variants (DGV) for DEFA3 Gene

Variant ID Type Subtype PubMed ID
nsv465436 CNV Gain 19166990
esv2752262 CNV Gain 17911159
dgv7656n71 CNV Gain 21882294
dgv7657n71 CNV Gain 21882294
nsv428194 CNV Gain+Loss 18775914
nsv528374 CNV Gain 19592680
dgv2190e1 CNV Complex 17122850
essv14510 CNV CNV 17122850
dgv2191e1 CNV Complex 17122850
nsv831221 CNV Gain 17160897
nsv890068 CNV Gain 21882294
nsv6060 CNV Loss 18451855
nsv890069 CNV Gain 21882294
nsv527917 CNV Gain 19592680
esv21544 CNV Gain+Loss 19812545
nsv820476 CNV Duplication 20802225
nsv8278 CNV Gain+Loss 18304495
nsv515096 CNV Complex 21397061
nsv437041 CNV Loss 16327808
nsv435861 CNV Deletion 17901297
nsv6064 CNV Insertion 18451855
nsv890070 CNV Loss 21882294
nsv890071 CNV Gain 21882294
nsv482119 CNV Gain 20164927

Relevant External Links for DEFA3 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for DEFA3 Gene

Disorders for DEFA3 Gene

MalaCards: The human disease database

MalaCards: The human disease database. (4) Diseases for DEFA3 Gene including...

Search for DEFA3 Gene in MalaCards »

Relevant External Links for DEFA3

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with DEFA3: view

No data available for UniProtKB/Swiss-Prot for DEFA3 Gene

Publications for DEFA3 Gene

  1. The structure of neutrophil defensin genes. (PMID: 8477861) Linzmeier R. … Ganz T. (FEBS Lett. 1993) 2 3 4 23
  2. Copy number polymorphism and expression level variation of the human alpha-defensin genes DEFA1 and DEFA3. (PMID: 15944200) Aldred P.M. … Armour J.A. (Hum. Mol. Genet. 2005) 2 3 23
  3. Inter-population variability of DEFA3 gene absence: correlation with haplotype structure and population variability. (PMID: 17214878) Ballana E. … Estivill X. (BMC Genomics 2007) 2 3 23
  4. Human alpha-defensins inhibit Clostridium difficile toxin B. (PMID: 18435932) Giesemann T. … Aktories K. (Gastroenterology 2008) 3 23
  5. Inheritance of unequal numbers of the genes encoding the human neutrophil defensins HP-1 and HP-3. (PMID: 8530462) Mars W.M. … Saunders G.F. (J. Biol. Chem. 1995) 3 23

Products for DEFA3 Gene

Sources for DEFA3 Gene

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