BD-4, human recombinant
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Catalog number4525-1000
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PricePlease ask
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Size1 mg
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SynonymsDEFB104A; DEFB4; BD-4; DEFB-4; DEFB104; MGC118942; MGC118944; MGC118945; hBD-4
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Alternative_namesBeta-defensin 3, Defensin, beta 103, Defensin-like protein, DEFB103A, BD3, DEFB103, DEFB3, DEFB103B
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DescriptionAn antimicrobial peptide
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RecombinantYes
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SourceE. coli
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Purity by SDS PAGE≥98%
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AssaySDS-PAGE
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Purity≥98%
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Biological activityDetermined by its ability to chemoattract human monocytes using a concentration range of 0.1-50 ng/ml.
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Molecular Weight~6.0 kDa
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Storage Temp-20°C
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ShippingGel pack
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Shelf Life12 months
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AppearanceLyophilized protein
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Physical form descriptionSterile filtered and lyophilized from 20 mM PBS, pH 7.4 and 130 mM NaCl.
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Reconstitution InstructionsCentrifuge the vial prior to opening. Reconstitute in sterile dd H₂O to a concentration ≥ 100 µg/ml. This solution can then be diluted into other aqueous buffers and stored at 4 °C for 2-7 days and at -20 °C for future use.
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Background InformationDefensins are cationic peptides with a large spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The Alpha defensins are differentiated from the Beta-defensins by the pairing of their 3 disulfide bonds. Four human Beta-defensins have been identified to date; BD-1, BD-2, BD-3 and BD-4. Beta-defensins are expressed on some leukocytes and at epithelial surfaces. In addition to their direct antimicrobial activities, they are chemoattractant towards immature dendritic cells and memory T cells. Beta-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence (for BD-1 a propeptide region). Beta-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. Beta Defensin-4 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 50 amino acids. The BD-4 is purified by proprietary chromatographic techniques.
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HandlingCentrifuge the vial prior to opening.
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UsageFor Research Use Only! Not to be used in humans
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PropertiesHuman proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
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Additional sourceRecombinants or rec. proteins
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Grouprecombinants
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Gene target
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Gene symbolMIR1302-4, PIRC18, PIRC16, SNORD114-4, IGKV2OR2-4, MIR941-4, PIRC19, PIRC17
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Short nameBD-4, recombinant
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TechniqueRecombinant, E. coli recombinant proteins are genetic recombinations in Escherichia coli, supplied as white sterile powder lyopillized. Biovision advises they will be reconstituted in a buffer soluion or culture medium for cell culture.
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SpeciesHuman, Humans
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Alternative nameBD-4, H. sapiens Rec.
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Alternative techniquerec
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Gene info
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Identity
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Gene
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Long gene namemicroRNA 1302-4
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Synonyms gene
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Synonyms
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Locus
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Discovery year2008-11-03
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Entrez gene record
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RefSeq identity
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Classification
- MicroRNA MIR1302 family
Gene info
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Identity
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Gene
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Long gene namepiwi-interacting RNA cluster 18
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Locus
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Discovery year2009-11-05
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Entrez gene record
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Pubmed identfication
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Classification
- Piwi-interacting RNA clusters
Gene info
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Identity
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Gene
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Long gene namepiwi-interacting RNA cluster 16
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Locus
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Discovery year2009-11-05
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Entrez gene record
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Pubmed identfication
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Classification
- Piwi-interacting RNA clusters
Gene info
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Identity
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Gene
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Long gene namesmall nucleolar RNA, C/D box 114-4
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Synonyms
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Locus
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Discovery year2006-09-26
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Entrez gene record
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Pubmed identfication
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RefSeq identity
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Classification
- Small nucleolar RNAs, C/D box
Gene info
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Identity
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Gene
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Long gene nameimmunoglobulin kappa variable 2/OR2-4 (pseudogene)
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Synonyms gene name
- immunoglobulin kappa variable 2/OR2-4
- immunoglobulin kappa variable 2/OR2-4 pseudogene
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Synonyms
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GenBank acession
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Locus
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Discovery year2000-04-18
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Entrez gene record
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Pubmed identfication
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Classification
- Immunoglobulin kappa (IGK) orphons
Gene info
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Identity
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Gene
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Long gene namemicroRNA 941-4
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Synonyms gene
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Synonyms
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Locus
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Discovery year2007-10-24
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Entrez gene record
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RefSeq identity
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Classification
- MicroRNAs
Gene info
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Identity
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Gene
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Long gene namepiwi-interacting RNA cluster 19
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Locus
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Discovery year2009-11-05
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Entrez gene record
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Pubmed identfication
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Classification
- Piwi-interacting RNA clusters
Gene info
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Identity
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Gene
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Long gene namepiwi-interacting RNA cluster 17
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Locus
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Discovery year2009-11-05
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Entrez gene record
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Pubmed identfication
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Classification
- Piwi-interacting RNA clusters
MeSH Data
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Name
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ConceptScope note: The initial culturing of cells derived directly from fresh TISSUES.
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Tree numbers
- E01.370.225.500.223.500
- E05.200.500.265.500
- E05.242.223.500
- E05.481.500.249.500
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Qualifiersethics, trends, veterinary, history, classification, economics, instrumentation, methods, standards, statistics & numerical data