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MABF31 | Anti-Alpha Defensin-5 (HD5) Antibody, clone 8C8

100 µg  
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      Replacement Information

      Key Specifications Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      H IHC, WB M Purified Monoclonal Antibody
      Catalogue NumberMABF31
      DescriptionAnti-Alpha Defensin-5 (HD5) Antibody, clone 8C8
      Alternate Names
      • defensin, alpha 5, Paneth cell-specific
      • defensin, alpha 5, preproprotein
      • defensin-5
      • defensin 5
      • Defensin, alpha 5
      Background InformationHuman alpha defensin-5 (HD5) is one of six peptides belonging to the alpha defensin family. Defensins are small peptides involved in immunological defense against viral and microbial infections through either direct interaction with pathogens or in combination with other immune system factors. There are three subfamilies of defensins (α, β, and θ). α defensins are only observed in mammals and are mainly β-sheet structures. Alpha defensin-5 (HD5) is primarily expressed in the Paneth cells found within the small intestine, and has been shown to possess activity against both Gram-positive and Gram-negative microbes. Studies have shown alpha defensin-5 (HD5) to be a strong antagonist towards human Papillomavirus infection. It may also play a role Crohn’s disease.
      Product Information
      • Normal human tranverse colon tissue
      PresentationPurified mouse monoclonal IgG2bκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
      ApplicationAnti-Alpha Defensin-5 (HD5) Antibody, clone 8C8 detects level of Alpha Defensin-5 (HD5) & has been published & validated for use in IH & WB.
      Key Applications
      • Immunohistochemistry
      • Western Blotting
      Application NotesWestern Blot Analysis: 0.5 ug/mL from a previous lot detected alpha defensin-5 (HD5) in human small intestine tissue lysate. The urea-treated method is recommended instead of SDS page (Shen, B. et al., 2005).
      Biological Information
      ImmunogenRecombinant protein corresponding to human alpha defensin-5 (HD5).
      ConcentrationPlease refer to the Certificate of Analysis for the lot-specific concentration.
      Species Reactivity
      • Human
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Entrez Gene SummaryDefensins are a family of microbicidal 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. Several of the alpha defensin genes appear to be clustered on chromosome 8. The protein encoded by this gene, defensin, alpha 5, is highly expressed in the secretory granules of Paneth cells of the ileum. [provided by RefSeq].
      Gene Symbol
      • DEF5
      • DEFA5
      • HD-5
      Purification MethodProtein G Purified
      UniProt Number
      UniProt SummaryFUNCTION: Has antimicrobial activity against Gram-negative and Gram-positive bacteria. Defensins are thought to kill microbes by permeabilizing their plasma membrane.

      SUBUNIT STRUCTURE: Homodimer.


      TISSUE SPECIFICTY: Paneth cells of the small intestine.

      SEQUENCE SIMILARITIES: Belongs to the alpha-defensin family.
      Molecular Weight10 kDa calculated
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Immunohistochemistry in normal human tranverse colon tissue.

      Immunohistochemistry Analysis: A 1:200 dilution of this antibody detected alpha defensin-5 (HD5) in normal human tranverse colon tissue.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size100 µg
      Transport Information
      Supplemental Information