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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
-20℃
- 保质期:
12个月
- 英文名:
Recombinant Phospholipase A2, Pancreas (pPLA2)
- 库存:
100
- 供应商:
上海沪震
FOR IN VITRO AND RESEARCH USE ONLY, NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES!
Organism species Sus scrofa; Porcine (Pig)
Product No. RPD826Po01
Source Prokaryotic expression
Host E.coli
Purity > 95%
UOM 50ug
Predicted Molecular Mass n/a
Applications SDS-PAGE; WB; ELISA; IP.
Endotoxin Level <1.0EU per 1µg (determined by the LAL method)
胰腺型磷脂酶A2(pPLA2)重组蛋白Residues n/a
Formulation Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl.
USAGE
Reconstitute in sterile PBS, pH7.2-pH7.4.
STORAGE AND STABILITY
Storage: Avoid repeated freeze/thaw cycles. Store at 2-8oC for one month. Aliquot and store at -80oC for 12 months.
Stability Test: The thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 5% within the expiration date under appropriate storage condition.
About the MARKER (complimentary)
Effective Size Range: 10kDa to 70kDa.
Protein bands: 10kDa, 14kDa, 18kDa, 22kDa, 26kDa, 33kDa, 44kDa and 70kDa.
Double intensity bands: The 26kDa, 18kDa, 10kDa bands are at double intensity to make location and size approximation of proteins of interest quick and easy.
胰腺型磷脂酶A2(pPLA2)重组蛋白Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验OLR1(LOX-1)配体结合机制、胞内信号调控及蛋白试剂应用解析
。此外,OLR1在多种免疫及特定功能细胞中也广泛存在,包括单核吞噬细胞、中性粒细胞、树突状细胞、滋养层细胞以及胶质细胞。这种广泛的分布模式提示OLR1不仅在血管生物学中发挥作用,还深度参与了免疫调节及神经系统的生理过程。 OLR1的结构和其受体 OLR1(又称LOX-1)是一种属于C型凝集素超家族的II型跨膜糖蛋白,分子量约50-52 kDa,由273个氨基酸组成。其结构主要包含三个部分:N端的短胞质尾区、跨膜结构域以及C端的胞外凝集素样结构域,后者是识别配体的关键区域。作为受体,OLR1的主要配体是氧
质界面形成特殊的免疫抑制生态位,促使巨噬细胞极化为免疫抑制性M2样表型,并诱导其自分泌CXCL8,进而上调巨噬细胞表面PD-L1表达,最终抑制CD8⁺效应T细胞的浸润和细胞毒功能,构成"成纤维细胞-巨噬细胞-T细胞"三级级联免疫逃逸轴。动物实验验证显示,联合使用CXCR1/2抑制剂Reparixin阻断 CXCL8信号与抗PD-L1免疫检查点抑制剂,可协同恢复CD8⁺ T细胞抗肿瘤功能,显著抑制肿瘤生长,优于单药治疗效果。该研究阐明了宫颈癌中基质细胞与免疫细胞相互作用介导免疫逃逸的新型分子
菌体外围有“炸面圈样”或“指突状”结构包裹。这些结构有何含义亦不清楚。 延长培养时间,典型的细菌会发生圆球样形态的变化。这可能就属于Hp的L型。它亦可在暴露于大气(含O2量较高)时发生。这种圆球体(图6)有两种类型。一种较大,电镜下可见稀疏的细胞质,细胞体积膨大。这种类型可能是一种退化型,在传代中不能再生长。另一种小圆球体,电镜下可见电子密度较高的细胞质,且有完整的细胞膜。这种类型可能比前者有较高含量的KDO和蛋白质。它已经被证明至少在30d内对物理和化学因素有一定的耐受
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