beta-Defensin 2 Active Protein | DEFB4A active protein
Recombinant Human beta-Defensin 2 (rHu BD-2)
Gene Names
DEFB4A; BD-2; SAP1; DEFB2; DEFB4; HBD-2; DEFB-2; DEFB102
Purity
>98% by SDS-PAGE and HPLC analyses
Synonyms
beta-Defensin 2; Recombinant Human beta-Defensin 2 (rHu BD-2); human BD-2; Human beta-Defensin 2; DEFB4A active protein
Host
Escherichia coli.
Purity/Purification
>98% by SDS-PAGE and HPLC analyses
Form/Format
Lyophilized from a 0.2 um filtered concentrated (1.0mg/ml) solution in 20mM PB, pH 7.4, 130mM NaCl.
Sequence
GIGDPVTCLK SGAICHPVFC PRRYKQIGTC GLPGTKCCKK P
Sequence Length
64
Biological Activity
Fully biologically active when compared to standard. Determined by its ability to chemoattract immature human dendritic cells using a concentration range of 10-100 ng/ml.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Endotoxin
Less than 1EU/ug of rHuBD-2 as determined by LAL method.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20°C. Further dilutions should be made in appropriate buffered solutions.
Preparation and Storage
This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
Related Product Information for DEFB4A active protein
Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The alpha-defensins are distinguished from the beta-defensins by the pairing of their three disulfide bonds. To date, four human beta-defensins have been identified; 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. The beta- defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence and, in the case of BD-1 (36 a.a.), a propeptide region. beta-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. beta-Defensins are 3-5 kDa peptides ranging in size from 33-47 amino acid residues.
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
Molecular Weight
Approximately 4.3 KDa, a single non-glycosylated polypeptide chain containing 41 amino acids.
NCBI Official Full Name
beta-defensin 2
NCBI Official Synonym Full Names
defensin, beta 4A
NCBI Official Symbol
DEFB4A
NCBI Official Synonym Symbols
BD-2; SAP1; DEFB2; DEFB4; HBD-2; DEFB-2; DEFB102
NCBI Protein Information
beta-defensin 4A; defensin, beta 2; defensin, beta 4; skin-antimicrobial peptide 1
UniProt Protein Name
Beta-defensin 4A
Protein Family
UniProt Gene Name
DEFB4A
UniProt Synonym Gene Names
DEFB102; DEFB2; DEFB4; BD-2; hBD-2; SAP1
UniProt Entry Name
DFB4A_HUMAN
NCBI Description
Defensins form a family of microbicidal and cytotoxic peptides made by neutrophils. Members of the defensin family are highly similar in protein sequence. This gene encodes defensin, beta 4, an antibiotic peptide which is locally regulated by inflammation. [provided by RefSeq, Jul 2008]
Uniprot Description
defensin, beta 2: Has antibacterial activity (Potential). Belongs to the beta-defensin family. LAP/TAP subfamily.
Protein type: Motility/polarity/chemotaxis; Secreted; Secreted, signal peptide
Chromosomal Location of Human Ortholog: 8p23.1
Cellular Component: Golgi lumen; extracellular region
Biological Process: G-protein coupled receptor protein signaling pathway; defense response to bacterium; innate immune response; immune response; chemotaxis
Research Articles on DEFB4A
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Product Notes
The DEFB4A defb4a (Catalog #AAA546026) is an Active Protein produced from Escherichia coli. and is intended for research purposes only. The product is available for immediate purchase. The amino acid sequence is listed below: GIGDPVTCLK SGAICHPVFC PRRYKQIGTC GLPGTKCCKK P. It is sometimes possible for the material contained within the vial of "beta-Defensin 2, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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