首页 > R&D Systems > R&D Systems/Human Napsin A Antibody/AF8489/100 uL

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R&D Systems/Human Napsin A Antibody/AF8489/100 uL

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AF8489-100uL

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R&D Systems

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Species ReactivityHumanSpecificityDetects human Napsin A in direct ELISAs and Western blots.SourcePolyclonal Rabbit IgGPurificationAntigen Affinity-purifiedImmunogenChinese hamster ovary cell line CHO-derived recombinant human Napsin AThr25-Gly420Accession # O96009FormulationSupplied as a solution in PBS containing BSA, Glycerol and Sodium Azide. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.LabelUnconjugated Western Blot1:1000 dilutionSee belowImmunohistochemistry0.5-10 µg/mLSee belowShippingThe product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °CStability & StorageUse a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C, as supplied.1 month, 2 to 8 °C under sterile conditions after opening.6 months, -20 to -70 °C under sterile conditions after opening. Entrez Gene IDs:9476 (Human); 16541 (Mouse); 60575 (Rat)Alternate Names:Asp 4; ASP4; Aspartyl protease 4; EC 3.4.23; EC 3.4.23.-; EC 3.4.23.15; EC 3.4.23.3; EC 3.4.23.5; KAP; Kdap; NAP1napsin-A; NAPA; NAPApronapsin A; NAPSA; napsin A aspartic peptidase; Napsin A; Napsin-1; SNAPA; TA01/TA02Background:Novel Aspartic Proteinase of the Pepsin Family or Napsin A is an aspartic proteinase that belongs to the peptidase A1 family and plays a role in pneumocyte surfactant processing. It consists of a 24-residue signal peptide, a 40-amino acid propart, the mature enzyme of 336 amino acids, and a C-terminal extension of 18 residues. Highest levels of Napsin A have been detected in adult lung (type II pneumocytes), fetal lung, and kidney tissues. Napsin A is also expressed at lower levels in adult spleen and at very low levels in peripheral blood leukocytes. Human napsin A shares 72.6% sequence identity with the mouse homolog.

R&D Systems位于美国的明尼苏达州，一直致力于生物制品的开发与生产。公司成立之初主要生产用于医院及临床应用的血控品。1997年，公司推出第一个产品--富血小板血浆质控品；1981年，公司成为全球第二家生产含血小板全血控品的供应商。40多年的发展中，R&D Systems仍持续开发各种血控品产品。

1985年，作为公司推出的第一个科研试剂产品，也是全球第一家将该产品进行商业化生产的产品，R&D Systems成功上市了TGF-beta1蛋白。作为胞外信号分子，TGF-beta1蛋白在多种细胞中进行表达，并作为胞外信号分子参与免疫功能，细胞增殖和细胞分化等生物学过程。该产品推出后，公司陆续从生物材料中纯化了几种细胞因子产品并推向市场。

天然蛋白类产品的成功推广，加速了R&D Systems在细胞因子市场的开拓。公司于1985年形成Growth Factor事业部（现Biotechnology事业部）。Biotechnology事业部的目标是生产和营销重组人细胞因子。与天然来源提取蛋白相比较，DNA重组技术生产的蛋白产品其成本更低，产量更高，完全摆脱原料的限制。1989年，Biotechnology事业部开始开发抗细胞因子的单克隆和多克隆抗体，并于1990年开发了第一个ELISA试剂盒。

2014年2月10日，R&D Systems的母公司宣布命名为Bio-Techne. Bio-Techne旗下包括R&D Systems, Novus Biologicals, BiosPacific, Tocris Bioscience, Boston Biochem和Bionostics。