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β-Defensin 4A is a membrane-active cationic peptide that functions in inflammation and innate immune responses. There are at least 30 β-Defensins, which are distinguished from α-Defensins by the connectivity pattern of their three intermolecular disulfide bonds. Members of the Defensin family are highly similar in protein sequence. This gene encodes Defensin, DEFB4;, which has broad-spectrum antimicrobial activity and may play an important role in innate epithelial defense. They are highly expressed in skin and tonsils, and to a lesser extent in trachea, uterus, kidney, thymus, adenoid, pharynx and tongue. β-Defensin 4A has low expression in salivary gland, bone marrow, colon, stomach, polyp and larynx. No expression in small intestine. The 45 amino acid mature human BD3 shares 38% and 33% amino acid sequence identity with mouse and rat BD3, respectively.

| 规格 | 价格 | 库存 | 数量 | 
|---|---|---|---|
| 5 μg | ¥ 385 | In stock | |
| 10 μg | ¥ 620 | In stock | |
| 20 μg | ¥ 958 | 5日内发货 | |
| 50 μg | ¥ 1,730 | 5日内发货 | |
| 100 μg | ¥ 2,970 | 5日内发货 | |
| 200 μg | ¥ 5,550 | 5日内发货 | |
| 500 μg | ¥ 12,100 | 5日内发货 | |
| 1 mg | ¥ 17,300 | 5日内发货 | 
| 生物活性 | Activity has not been tested. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first. | 
| 产品描述 | β-Defensin 4A is a membrane-active cationic peptide that functions in inflammation and innate immune responses. There are at least 30 β-Defensins, which are distinguished from α-Defensins by the connectivity pattern of their three intermolecular disulfide bonds. Members of the Defensin family are highly similar in protein sequence. This gene encodes Defensin, DEFB4;, which has broad-spectrum antimicrobial activity and may play an important role in innate epithelial defense. They are highly expressed in skin and tonsils, and to a lesser extent in trachea, uterus, kidney, thymus, adenoid, pharynx and tongue. β-Defensin 4A has low expression in salivary gland, bone marrow, colon, stomach, polyp and larynx. No expression in small intestine. The 45 amino acid mature human BD3 shares 38% and 33% amino acid sequence identity with mouse and rat BD3, respectively. | 
| 种属 | Human | 
| 表达系统 | E. coli | 
| 标签 | Tag Free | 
| 蛋白编号 | O15263 | 
| 别名 | β-Defensin 4A,β-Defensin 2,β2,Skin-Antimicrobial Peptide 1,SAP1,hBD-2,Defensin,DEFB4B,DEFB4A,DEFB4,DEFB2,DEFB102,Beta-Defensin 4A,Beta-Defensin 2,Beta 2,BD-2 | 
| 氨基酸序列 | Gly24-Pro64 | 
| 蛋白构建 | Gly24-Pro64 | 
| 蛋白纯度 | Greater than 95% as determined by reducing SDS-PAGE. (QC verified) | 
| 分子量 | 9 KDa (reducing condition) | 
| 内毒素 | < 0.1 ng/µg (1 EU/µg) as determined by LAL test. | 
| 缓冲液 | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. | 
| 复溶方法 | Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. | 
| 存储 | Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. | 
| 运输方式 | In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice. | 
| 研究背景 | β-Defensin 4A is a membrane-active cationic peptide that functions in inflammation and innate immune responses. There are at least 30 β-Defensins, which are distinguished from α-Defensins by the connectivity pattern of their three intermolecular disulfide bonds. Members of the Defensin family are highly similar in protein sequence. This gene encodes Defensin, DEFB4;, which has broad-spectrum antimicrobial activity and may play an important role in innate epithelial defense. They are highly expressed in skin and tonsils, and to a lesser extent in trachea, uterus, kidney, thymus, adenoid, pharynx and tongue. β-Defensin 4A has low expression in salivary gland, bone marrow, colon, stomach, polyp and larynx. No expression in small intestine. The 45 amino acid mature human BD3 shares 38% and 33% amino acid sequence identity with mouse and rat BD3, respectively. |