Name: Recombinant Human Beta-defensin 103 protein(DEFB103A) (Active)
Brand: CUSABIO
SKU: CSB-AP003051HU

Product Details

Purity	>98% as determined by SDS-PAGE and HPLC.
Endotoxin	Less than 1.0 EU/μg as determined by LAL method.
Activity	Fully biologically active when compared to standard. The ED50 as determined by anti-microbial activity against E.coli. is less than 30 μg/ml, corresponding to a specific activity of >33.3 IU/mg.
Target Names	DEFB103A
Uniprot No.	P81534
Research Area	Microbiology
Alternative Names	BD 3; BD-3; BD3; beta 103; Beta defensin 103A; Beta defensin 103A precursor; Beta defensin 3; Beta-defensin 103; Beta-defensin 3; D103A_HUMAN; DEF B3; DEFB 103; DEFB 103A; DEFB 3; DEFB-3; DEFB103; DEFB103A; DEFB103B; DEFB3; Defensin; Defensin beta 103A; Defensin beta 3; Defensin like protein; Defensin-like protein; HBD 3; hBD-3; HBD3; HBP 3; HBP3; mBD3
Species	Homo sapiens (Human)
Source	E.coli
Expression Region	23-67aa
Complete Sequence	GIINTLQKYY CRVRGGRCAV LSCLPKEEQI GKCSTRGRKC CRRKK
Mol. Weight	5.2 kDa
Protein Length	Full Length of Mature Protein
Tag Info	Tag-Free
Form	Lyophilized powder
Buffer	Lyophilized from a 0.2 µm filtered 20 mM PB, pH 7.4, 130 mM NaCl
Reconstitution	We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs	Protein FAQs
Storage Condition	Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life	The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time	5-10 business days
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA	Please contact us to get it.

Target Background

Function (From Uniprot)	Exhibits antimicrobial activity against Gram-positive bacteria S.aureus and S.pyogenes, Gram-negative bacteria P.aeruginosa and E.coli and the yeast C.albicans. Kills multiresistant S.aureus and vancomycin-resistant E.faecium. No significant hemolytic activity was observed.
Gene References into Functions	this study shows that hBD3 amplifies the response to bacterial DNA in both mouse and human immune cells in a TLR9-dependent manner PMID: 28102569 the role of DEFB103 gene copy number variation (CNV) in ankylosing spondylitis (AS) susceptibility, was investigated. PMID: 26224324 It may be concluded hepatitis B virus up-regulates HBD-3 and A3G expression in vivo and in vitro in placental trophoblast and lack of this up-regulation is possibly associated with intrauterine transmission of hepatitis B. PMID: 25196417 The encoded peptide displays antimicrobial activity against S. aureus and E. faecium. PMID: 11085990 these observations suggest that there may be an interracial difference in DEFB4/103A copy numbers between admixed populations and a relationship between DEFB1 single nucleotide polymorphisms and DEFB4/103A copy number variation PMID: 23194186 Human beta-defensin 3 peptide is increased and redistributed in Crohn's ileitis PMID: 23511030 study demonstrates that HBD2 and 3 activate plasmacytoid dendritic cells by enhancing the intracellular uptake of CpG and self DNA and promote DNA-induced IFN-alpha production in a TLR9-dependent manner PMID: 23776172 Mapping of key residues in the interaction between human Beta-defensin 3 and CXCR4 reveals key defensin motifs involved in protein binding. PMID: 23659571 These results suggest an important role for hBD3 in inducing dendritic cell activation, migration, and polarization. PMID: 22951718 Using a large, unique cohort of pediatric CA-SAB, this study found no significant association between DEFB1 genetic variation or DEFB4/DEFB103 gene copy number and susceptibility for Staphylococcus aureus bacteremia PMID: 22384213 Human beta-defensin 3 exhibits further functions than antimicrobial peptide activity in cultured bone cells, including stimulation of proliferation and differentiation. PMID: 21520074 Data show that high-glucose conditions inhibited the BD3 expression of epidermal keratinocytes. PMID: 21442129 hBD-1 might function as a tumor suppressor gene in oral squamous cell carcinoma, while hBD-2 and -3 might be protooncogenes. PMID: 21280982 extraplacental membranes can react differentialy to the arrival of E. coli, secreting HBD2 and HBD3 mainly in the choriodecidua region. PMID: 21122132 PPARgamma regulates the 1,25D-induced hBD-3 and cathelicidin expression in keratinocytes through the regulation of AP-1 and p38 activity. PMID: 20970965 hBD3 represents a novel NF-kappaB-regulated mediator of CCR7 expression and anti-apoptotic pathways. PMID: 21071608 Inducibility of HBD3 influences the severity of Gram-positive skin infection in humans in vivo. PMID: 20404083 Data show that beta-defensin cluster (DEFB4, DEFB103 and DEFB104) varied between 2 and 9 copies per genome, and high copy numbers (>4) were underrepresented among patients, suggesting that increased copy numbers could protect from CD. PMID: 20483368 Human pulmonary cells produce hBD-3 upon L. pneumophila infection via a TLR-JNK-AP-1-dependent pathway which may contribute to an efficient innate immune defense. PMID: 20615218 The beta-defensin antimicrobial peptides hBD1, hBD2 and hBD3 were expressed by immature dendritic cells as well as gingival epithelial cells. PMID: 20618959 Show More Hide All
Subcellular Location	Secreted
Protein Families	Beta-defensin family
Tissue Specificity	Highly expressed in skin and tonsils, and to a lesser extent in trachea, uterus, kidney, thymus, adenoid, pharynx and tongue. Low expression in salivary gland, bone marrow, colon, stomach, polyp and larynx. No expression in small intestine.
Database Links	HGNC: 15967 OMIM: 606611 KEGG: hsa:414325 STRING: 9606.ENSP00000324633 UniGene: Hs.283082

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Code	CSB-AP003051HU
Size	$2617Purchase it in Cusabio online store (only available for customers from the US)
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Recombinant Human Beta-defensin 103 protein(DEFB103A) (Active)

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