Free for academic non-profit institutions. Other users need a Commercial license

Aliases for DEFB104B Gene

Aliases for DEFB104B Gene

  • Defensin, Beta 104B 2 3
  • Defensin, Beta 104 3 4
  • Beta-Defensin 4 3 4
  • DEFB-4 3 4
  • HBD-4 3 4
  • BD-4 3 4
  • DEFB104A DEFB104B 4
  • DEFB104 4
  • DEFB4 4

External Ids for DEFB104B Gene

Previous GeneCards Identifiers for DEFB104B Gene

  • GC08U900557
  • GC08M007317

Summaries for DEFB104B Gene

Entrez Gene Summary for DEFB104B Gene

  • Defensins form a family of antimicrobial and cytotoxic peptides made by neutrophils. Defensins are short, processed peptide molecules that are classified by structure into three groups: alpha-defensins, beta-defensins and theta-defensins. All beta-defensin genes are densely clustered in four to five syntenic chromosomal regions. Chromosome 8p23 contains at least two copies of the duplicated beta-defensin cluster. This duplication results in two identical copies of defensin, beta 104, DEFB104A and DEFB104B, in head-to-head orientation. This gene, DEFB104B, represents the more telomeric copy. [provided by RefSeq, Oct 2014]

GeneCards Summary for DEFB104B Gene

DEFB104B (Defensin, Beta 104B) is a Protein Coding gene. Among its related pathways are Immune System and Defensins. An important paralog of this gene is DEFB104A.

UniProtKB/Swiss-Prot for DEFB104B Gene

  • Has antimicrobial activity. Synergistic effects with lysozyme and DEFB103.

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for DEFB104B Gene

Genomics for DEFB104B Gene

Regulatory Elements for DEFB104B Gene

Genomic Location for DEFB104B Gene

7,470,308 bp from pter
7,475,082 bp from pter
4,775 bases
Minus strand

Genomic View for DEFB104B Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for DEFB104B Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for DEFB104B Gene

Proteins for DEFB104B Gene

  • Protein details for DEFB104B Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Beta-defensin 104
    Protein Accession:
    Secondary Accessions:
    • Q496I2
    • Q496I3
    • Q496I4

    Protein attributes for DEFB104B Gene

    72 amino acids
    Molecular mass:
    8526 Da
    Quaternary structure:
    No Data Available

neXtProt entry for DEFB104B Gene

Proteomics data for DEFB104B Gene at MOPED

Post-translational modifications for DEFB104B Gene

No Post-translational modifications

Other Protein References for DEFB104B Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for DEFB104B Gene

Domains & Families for DEFB104B Gene

Gene Families for DEFB104B Gene

Protein Domains for DEFB104B Gene


Suggested Antigen Peptide Sequences for DEFB104B Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the beta-defensin family.
  • Belongs to the beta-defensin family.
genes like me logo Genes that share domains with DEFB104B: view

Function for DEFB104B Gene

Molecular function for DEFB104B Gene

UniProtKB/Swiss-Prot Function:
Has antimicrobial activity. Synergistic effects with lysozyme and DEFB103.
UniProtKB/Swiss-Prot Induction:
Antimicrobial activity is decreased when the sodium chloride concentration is increased

Phenotypes for DEFB104B Gene

GenomeRNAi human phenotypes for DEFB104B:
genes like me logo Genes that share phenotypes with DEFB104B: view

Animal Model Products

miRNA for DEFB104B Gene

miRTarBase miRNAs that target DEFB104B

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for DEFB104B

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Animal Models , Transcription Factor Targets and HOMER Transcription for DEFB104B Gene

Localization for DEFB104B Gene

Subcellular locations from UniProtKB/Swiss-Prot for DEFB104B Gene

Subcellular locations from

Jensen Localization Image for DEFB104B Gene COMPARTMENTS Subcellular localization image for DEFB104B gene
Compartment Confidence
extracellular 5

Gene Ontology (GO) - Cellular Components for DEFB104B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region IEA --
GO:0009986 cell surface IBA --
genes like me logo Genes that share ontologies with DEFB104B: view

Pathways & Interactions for DEFB104B Gene

SuperPathways for DEFB104B Gene

Superpath Contained pathways
1 Immune System
2 Defensins
genes like me logo Genes that share pathways with DEFB104B: view

Pathways by source for DEFB104B Gene

4 Reactome pathways for DEFB104B Gene

Interacting Proteins for DEFB104B Gene

Gene Ontology (GO) - Biological Process for DEFB104B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0042742 defense response to bacterium IBA --
GO:0045087 innate immune response IBA --
genes like me logo Genes that share ontologies with DEFB104B: view

No data available for SIGNOR curated interactions for DEFB104B Gene

Drugs & Compounds for DEFB104B Gene

No Compound Related Data Available

Transcripts for DEFB104B Gene

mRNA/cDNA for DEFB104B Gene

(1) REFSEQ mRNAs :
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for DEFB104B

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for DEFB104B Gene

No ASD Table

Relevant External Links for DEFB104B Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for DEFB104B Gene

mRNA expression in normal human tissues for DEFB104B Gene

Protein differential expression in normal tissues from HIPED for DEFB104B Gene

This gene is overexpressed in Peripheral blood mononuclear cells (69.0).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB and MOPED for DEFB104B Gene

SOURCE GeneReport for Unigene cluster for DEFB104B Gene Hs.745562

mRNA Expression by UniProt/SwissProt for DEFB104B Gene

Tissue specificity: High expression in the testis. Gastric antrum exhibited relatively high levels. A lower expression is observed in uterus and neutrophils thyroid gland, lung, and kidney. No detectable expression in other tissues tested.
genes like me logo Genes that share expression patterns with DEFB104B: view

Protein tissue co-expression partners for DEFB104B Gene

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for DEFB104B Gene

Orthologs for DEFB104B Gene

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

Orthologs for DEFB104B Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia DEFB104 35
  • 100 (n)
  • 100 (a)
DEFB104 36
  • 100 (a)
Species with no ortholog for DEFB104B:
  • 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 DEFB104B Gene

Gene Tree for DEFB104B (if available)
Gene Tree for DEFB104B (if available)

Paralogs for DEFB104B Gene

Paralogs for DEFB104B Gene

(4) SIMAP similar genes for DEFB104B Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with DEFB104B: view

Variants for DEFB104B Gene

Sequence variations from dbSNP and Humsavar for DEFB104B Gene

SNP ID Clin Chr 08 pos Sequence Context AA Info Type MAF
rs59971733 -- 7,475,951(+) TTAAG(-/A)AAAAA upstream-variant-2KB
rs72111457 -- 7,475,951(+) TTAAG(-/AA)AAAAA upstream-variant-2KB
rs199566108 -- 7,474,582(+) CGCCC(-/T)TTTCT intron-variant

Structural Variations from Database of Genomic Variants (DGV) for DEFB104B Gene

Variant ID Type Subtype PubMed ID
nsv428194 CNV Gain+Loss 18775914
dgv2191e1 CNV Complex 17122850
nsv515968 CNV Gain+Loss 19592680
nsv821656 CNV Gain 15273396
dgv2192e1 CNV Complex 17122850
esv2736558 CNV Deletion 23290073
nsv510977 CNV Complex 20534489
dgv2193e1 CNV Complex 17122850
dgv7659n71 CNV Gain 21882294
esv21583 CNV Gain+Loss 19812545
nsv890078 CNV Gain 21882294
esv33606 CNV Gain+Loss 17666407
dgv7661n71 CNV Gain 21882294
dgv7662n71 CNV Gain 21882294
nsv8281 CNV Gain+Loss 18304495
dgv7663n71 CNV Loss 21882294
dgv7664n71 CNV Loss 21882294
dgv2194e1 CNV Complex 17122850
nsv471650 CNV Gain+Loss 15918152
dgv2195e1 CNV Complex 17122850
dgv7666n71 CNV Gain 21882294
dgv7667n71 CNV Gain+Loss 21882294
dgv7668n71 CNV Gain 21882294
dgv7669n71 CNV Gain 21882294
dgv7670n71 CNV Loss 21882294
dgv7672n71 CNV Gain+Loss 21882294
dgv7673n71 CNV Gain+Loss 21882294
esv996398 CNV Gain 20482838
nsv890110 CNV Gain 21882294
esv2752265 CNV Gain 17911159
nsv824519 CNV Loss 20364138
nsv824521 CNV Gain 20364138
nsv515100 CNV Complex 21397061
dgv31n14 CNV Loss 18776910
dgv7675n71 CNV Loss 21882294
nsv890153 CNV Loss 21882294
nsv442397 CNV CNV 18776908
nsv469521 CNV Complex 16826518
dgv7677n71 CNV Gain+Loss 21882294
dgv7678n71 CNV Gain 21882294
dgv7679n71 CNV Gain 21882294
dgv25n31 CNV Duplication 19718026
dgv7680n71 CNV Loss 21882294
dgv7681n71 CNV Gain 21882294
esv2752266 CNV Loss 17911159
nsv890230 CNV Gain+Loss 21882294
nsv890228 CNV Gain 21882294
nsv508496 CNV Loss 20534489
dgv7682n71 CNV Gain 21882294
esv25631 CNV Gain+Loss 19812545
nsv890256 CNV Gain+Loss 21882294
dgv7683n71 CNV Gain+Loss 21882294
dgv7684n71 CNV Loss 21882294
dgv7685n71 CNV Gain 21882294
nsv890270 CNV Loss 21882294
dgv7686n71 CNV Gain 21882294
dgv7687n71 CNV Gain 21882294
esv992071 CNV Gain 20482838
dgv7688n71 CNV Gain 21882294
dgv7689n71 CNV Gain 21882294
nsv433398 CNV Gain 18776910
dgv7690n71 CNV Gain+Loss 21882294
dgv7691n71 CNV Gain 21882294
dgv26n31 CNV Duplication 19718026
dgv1170n67 CNV Loss 20364138
nsv824524 CNV Gain+Loss 20364138
dgv7692n71 CNV Gain 21882294
dgv7693n71 CNV Gain+Loss 21882294
dgv7694n71 CNV Loss 21882294
dgv7695n71 CNV Gain 21882294
nsv890300 CNV Loss 21882294

Variation tolerance for DEFB104B Gene

Gene Damage Index Score: 0.00; 0.00% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for DEFB104B Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for DEFB104B Gene

Disorders for DEFB104B Gene

Relevant External Links for DEFB104B

Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with DEFB104B: view

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for DEFB104B Gene

Publications for DEFB104B Gene

  1. Expression of I^-defensin-4 in "an in vivo and ex vivo model" of human osteoarthritic knee meniscus. (PMID: 21879330) Musumeci G. … Loreto C. (Knee Surg Sports Traumatol Arthrosc 2012) 67
  2. Copy number variation of I^-defensin genes in BehAset's disease. (PMID: 21385545) Park J.J. … Lee E.B. (Clin. Exp. Rheumatol. 2011) 67
  3. Cross-species analysis of the mammalian beta-defensin gene family: presence of syntenic gene clusters and preferential expression in the male reproductive tract. (PMID: 16033865) Patil A.A. … Zhang G. (Physiol. Genomics 2005) 67
  4. Polymorphic segmental duplications at 8p23.1 challenge the determination of individual defensin gene repertoires and the assembly of a contiguous human reference sequence. (PMID: 15588320) Taudien S. … Platzer M. (BMC Genomics 2004) 67
  5. Evidence for duplication of the human defensin gene DEFB4 in chromosomal region 8p22-23 and implications for the analysis of SNP allele distribution. (PMID: 15727258) Boniotto M. … Gallagher G. (Genet. Test. 2004) 67

Products for DEFB104B Gene

Sources for DEFB104B Gene

Back to Top