产品名：
Recombinant Human LA / SS-B
品牌：
Absin
货号：
abs44074389
保持条件：
Store at 4°C if entire vial will be used within 2-4 weeks.
Store, frozen at -20°C for longer periods of time.
Avoid multiple freeze-thaw cycles.
浓度：
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抗原名称：
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应用：
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使用方法：
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产品描述：
The La protein is a 47 kDa polypeptide that frequently acts as an autoantigen in systemic lupus erythematosus and Sjogren‘s syndrome patients. La is involved in various aspects of RNA metabolism, including binding and protecting 3-prime UUU(OH) elements of newly RNA polymerase III - transcribed RNA, processing 5-prime and 3-prime ends of pre-tRNA precursors, acting as an RNA chaperone, and binding viral RNAs linked to hepatitis C virus. It occurs in both the nucleus and the cytoplasm, where it assumes different roles. In the nucleus, La protein facilitates the production of tRNAs, acting as an RNA polymerase III (RNAP III) transcription factor by attaching to the U-rich 3‘UTR of nascent transcripts, aiding in their folding and maturation. In the cytoplasm, La protein facilitates the translation of specific mRNAs, acting as a translation factor. As an RNA binding protein (RBP), La protein associates with subsets of mRNAs which contain a 5‘-terminal oligopyrimidine (5‘TOP) motif known to direct protein synthesis. The binding of La protein to particular classes of RNA molecules regulates their downstream processing, guards them from endonuclease digestion, and organizes their export from the nucleus. La/SS-B appears to be readily disposed to proteolysis, which results in many smaller (42kD, 320, and 270) nevertheless still immunoreactive polypeptides. La/SS-B antigen is strongly conserved across species. Anti-La/SS-B autoantibodies were originally found as precipitating autoantibodies in sera of Sjogren‘s Syndrome patients and referred to as SjT. Anti-La/SS-B precipitins are most frequently found in Sjogren‘s Syndrome, Systemic Lupus Erythematosus (SLE) and Subacute Cutaneous Lupus. Also, there seems to be a correlation between anti-La/SS-B and the absence of nephritis in SLE patients.
LA/SS-B Human Recombinant produced in SF9 is a single, glycosylated, polypeptide chain having a calculated molecular mass of 52 kDa, is fused to a hexahistidine purification tag.
The LA/SS-B is purified by proprietary chromatographic techniques.
爱必信品牌介绍：
爱必信（上海）生物科技有限公司是一家从事生物学试剂及耗材的高新技术企业。公司秉承“为生命科学创造便利！为客户创造价值！为员工创造幸福人生！”的发展理念，拥有专业的产品研发质检团队、市场营销团队及先进仓储物流等管理团队。荣获2021年度上海市“专精特新”企业称号。
自营品牌Absin®，主要经营产品有：生化试剂（常用生化试剂、生物学实验常用试剂、荧光染料、激动剂/抑制剂，植物提取物）、细胞生物学（细胞培养产品、血清、基质胶、添加剂、检测试剂盒）、免疫学产品、分子生物学产品、实验室仪器/耗材、产品定制和检测服务。
Absin还提供一些独有的特色产品：霍乱毒素B亚单位（CTB）、 鸡胚提取物（CEE）、 牛脑垂体提取物、 呼吸爆发试剂盒、 多色免疫组化试剂盒、 mRNA原料等在业界深受客户喜欢。
Absin秉承踏实，务实，求精和不断创新的精神为中国科学家提供优质产品，努力打造属于中国自己的生物试剂品牌，为广大科学家提供更全面更丰富更优质的产品。
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