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- 询价记录
- 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:
1000
- 供应商:
上海信裕
| Organism species | Homo sapiens (Human) |
| Product No. | |
| Source | Prokaryotic expression |
| Host | E.coli |
| Purity | > 95% |
| UOM | 50ug |
| Predicted Molecular Mass | 18.6KDa |
| Concentration | n/a |
| Applications | SDS-PAGE; WB; ELISA; IP. |
| Endotoxin Level | <1.0EU per 1µg (determined by the LAL method) |
| Residues | Asp16~Ser148 with two N-terminal Tags, His-tag and T7-tag |
| Formulation | Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl. |
DSGIS PRAVWQFRKM IKCVIPGSDP FLEYNNYGCY CGLGGSGTPV DELDKCCQTH DNCYDQAKKL DSCKFLLDNP YTHTYSYSCS GSAITCSSKN KECEAFICNC DRNAAICFSK APYNKAHKNL DTKKYCQS
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.
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.
Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验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
连接形成bcr-abl融合基因编码210KD融合蛋白(p210 bcr-abl),这种蛋白可被T细胞识别。2致癌病毒性基因产物:如人乳头瘤状病毒(HPV)的16和18型与宫颈癌密切相关,HPV16的E6、E7基因能使宫颈鳞状上皮转化为肿瘤细胞。而E6、E7的基因产物可被T细胞识别。3其他: 如MUC-I基因编码的与细胞膜相关的粘蛋白,在某些癌细胞中高表达,关键是糖基化不完全,而暴露出多肽骨架,成为免疫识别的靶子,并且属于MHC非限制性的肿瘤相关抗原。从严格的定义来讲,肿瘤抗原并不绝对是肿瘤特异性抗原
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