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产物英文名称:Activin A,human
产物中文名称: 人激活素A
订购:&苍产蝉辫;
:驳苍补苍补蔼丑测蝉迟别尘肠别濒濒.肠辞尘
Activin A,human产物介绍:
激活素(activins) Activin A是转化生长因子(TGF)β家族的一种分泌蛋白,可控制胚胎轴发育为有功能的前肠源性组织,调解多种细胞的生长和分化。多种研究表明,其能诱导胰腺β细 胞的分化。尤其与其他因子的联合作用后能发挥更显著的诱导作用。如activin A联合全反式维甲酸可以更有效地诱导鼠ESC为产胰岛素细胞,而activin与BTC共同作用可以转化新生大鼠导管细胞为产胰岛素细胞。卵泡抑素 (follistatin)和表皮生长因子相关肽(Cripto)是ac2tivins的天然拮抗剂,有研究表明了胰岛分化阶段导管上皮细胞里的 activins及其抑制因子follistatin和Cripto都有所增加,卵泡抑素抑制activin的同时,能显著促进胰腺导管细胞新生而减少β 细胞的分化,故选择抑制activin信号途径可运用于扩增前体细胞,而激活activin有利于β细胞的分化。这些结果表说明,胰腺生长和分化之间的平 衡可通过activin信号途径的精确调节来实现。同时它还被广泛用于干细胞研究,用来诱导分化的胚胎干细胞形成内胚层。
Activin A,human 产物特性:
? Activin A,human内毒素含量小于0.1EU /μg,活性经过人源细胞鉴定,纯度高
? 生物活性在人源293细胞经过SMAD实验鉴定The EC50为 0.5–2.0 ng/ml
? Activin A,human产物经过SDS-PAGE 和HPLC双层鉴定纯度大于95%
? 只限于科学研究,非人体使用
Activin A,human 产物英文简述:
Activin A is a member of the TGFβ superfamily. It is a 26 kDa disulfidelinked homodimer of two βA chains, each containing 116 amino acid residues. Activin A is widely used in stem cell research. It has been used to induce the differentiation of embryonic stem cells to the definitive endoderm. The biological activities of Activin A can be neutralized by diffusible TGF-β antagonists, Follistatin (also available from StemRD). StemRD's Activin A is made in human 293 cells, which renders human-specific post-translational modifications. We purified this product through a series of chromatography including HPLC to near homogeneity.
? Purity: Greater than 95% by SDS-PAGE and HPLC analysis
? Biological Activity: The activity was determined by using a SMAD reporter gene assay in human 293 cells. The EC50 ranges from 0.5 - 2.0 ng/ml
? For Research Use Only. Not for Use in Humans
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StemRD MGro-500 MSC medium,chemically-defined,间充质干细胞培养基 500mL/瓶
LONZA 04-418Q X-VIVO 15 无血清培养基 1L/瓶
Life Technology 087-0112DK AIM-V? CTS? 无血清细胞培养基(细胞治疗级) 1000mL/瓶
Pall 15950-017 Ultroser Serum Substitute 血清替代品 20mL/瓶
LONZA 12-725F UltraCULTURE Serum-free Medium无血清培养基 500mL/瓶
BD 762165 PAXgene Blood RNA Tube RNA样本收集管 100管/盒
LONZA 50150 SeaKem? Gold Agarose 金琼脂糖粉 125g/瓶
LONZA CC-3162 EGM-2 BulletKit( CC-3156 & CC-4176 )套装 Kit/套
Nunc 159910 175cm2易用培养瓶,PS,已灭菌,瓶盖:过滤盖 30个/箱
LONZA LT07-318 MycoAlert? Mycoplasma Detection Kit支原体检测试剂盒 100Tests/盒
LONZA LT07-418 MycoAlert? Mycoplasma Detection Kit支原体检测试剂盒 50Tests/盒
Lonza 50-650U Kinetic-QCL 192 Test Kit内毒素检测试剂盒 192T/盒
Corning 431080 175cm⒉细胞培养瓶,Angled颈,透气盖 50个/箱
Corning 8388 125mL储液瓶 Storage Bottles,PS,45mm瓶颈,带盖,灭菌,独立包装 24个/箱
Corning 430659 2ml冻存管, 聚丙烯,外旋盖, 可自立圆底 500个/箱
Corning 3290 75cm2 CellBIND Surface培养瓶,已灭菌,透气盖 100个/箱
Corning 3292 175cm2 CellBIND Surface培养瓶,已灭菌,透气盖 50个/箱
BD-Falcon 352360 Cell Strainer, 100μm, Yellow 100um细胞滤网 50个/箱
BD Falcon 352070 50mL锥形离心管,高透明度聚丙烯,袋装 500支/箱
BD Falcon 352096 15mL锥形离心管,高透明度聚丙烯,袋装 500支/箱
BD BioCoat 354234 Matrigel Basement Membrane Matrix(标准型) 10mL/瓶
Cygnus F550 CHO HCP ELISA Kit,3G宿主蛋白检测试剂盒 96T/盒
Cygnus F410 E.coli HCP ELISA Kit 大肠杆菌 96T/盒
Nalgene 5100-0001 Cryo 1℃ Freezing Container梯度降温冻存盒 1个/箱
Nalgene 5026-0909 CryoBoxes 冻存盒 9X9 阵列,管瓶1.2/2.0mL 24个/箱
Nalgene 2250-0130 50L 可高温高压操作的细口大瓶(带手柄) 1个/箱
Nalgene 2319-0050 20L 可高温高压灭菌的细口大瓶(带放水口) 1个/箱
Hyclone SH30084.03 FBS 优等澳洲胎牛血清 500mL/瓶
PeproTech 100-18B-500 Recombinant Human FGF-basic (154 a.a.)因子 500ug/支
Parafilm PM-996 Parafilm? M Laboratory Film 封口膜 12卷/箱