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Beta D-4 human
| 产品编号： | 4102725 |
| 规格： | recombinant, expressed in E. coli, ≥98% (HPLC), suitable for cell culture |
| 包装规格： | 20 μG |
| 产品类别： | 进口试剂 |
| 品牌： | Sigma-Aldrich |
| 优惠价： | 立即咨询 |
产品别名
Beta D-4 human
DEFB104A
Beta-defensin 104
产品性质
| biological source【生物来源】 | human |
| recombinant【重组】 | expressed in E. coli |
| Assay【测定】 | ≥98% (HPLC) |
| form【形式】 | lyophilized |
| mol wt【分子量】 | 6.0 kDa |
| packaging【包装】 | pkg of 20 μg |
| technique(s) | cell culture | mammalian: suitable |
| impurities【杂质】 | <0.1 EU/μg endotoxin, tested |
| color【颜色】 | white to off-white |
| suitability【适用性】 | suitable for |
| UniProt accession no.【UniProt登记号】 | Q8WTQ1 |
| antibiotic activity spectrum【抗生素抗菌谱】 | fungi mycobacteria viruses |
| Mode of action【作用机制】 | cell membrane | interferes |
| shipped in【运输】 | wet ice |
| storage temp.【储存温度】 | −20℃ |
| Gene Information | human ... DEFB104A(140596) |
基本信息
| General description【一般描述】 | 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 α-defensins are distinguished from the β-defensins by the pairing of their three disulfide bonds. To date, four human b-defensins have been identified; BD-1, BD-2, BD-3 and BD-4. The β-defensin proteins are expressed as the C-terminal portion of precursors and are released by proteolytic cleavage of a signal sequence. b-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. β-defensins are 3-5 kDa peptides ranging in size from 33-47 amino acid residues. BD-4 is expressed in testis, stomach, uterus, neutrophils, thyroid, lung and kidney. In addition to its direct antimicrobial activities, BD-4 is chemoattractant towards human blood monocytes. Recombinant human BD-4 is a 6.0 kDa protein containing 50 amino acid residues. Chemical structure: peptide |
| Biochem/physiol Actions【生化/生理作用】 | Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. Recombinant human BD-4 is a 6.0 kDa protein containing 50 amino acid residues. |
| Sequence【序列】 | EFELDRICGY GTARCRKKCR SQEYRIGRCP NTYACCLRKW DESLLNRTKP |
| Physical form【外形】 | Lyophilized from 10 mM Acetic Acid. |
| Reconstitution【重悬】 | Centrifuge the vial prior to opening. Reconstitute in 10 mM Acetic Acid to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8℃ for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20℃ to -80℃. |
安全信息
| Pictograms【象形图】 | GHS07 |
| Signal word【警示用语：】 | Warning |
| Hazard Statements | H315 - H319 |
| Precautionary Statements | P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313 |
| Hazard Classifications【危险分类】 | Eye Irrit. 2 - Skin Irrit. 2 |
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 3 |
