Revision 4

#89270Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP, IHC-Bond, IHC-P

REACTIVITY:

H M

SENSITIVITY:

Endogenous

MW (kDa):

58, 63-70, 85

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q9UKS7

Entrez-Gene Id:

22807

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:200
IHC Leica Bond 1:125 - 1:500
Immunohistochemistry (Paraffin) 1:250 - 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier-free (BSA and azide free) version of this product see product #59976.

Specificity / Sensitivity

Helios (E4L5U) Rabbit mAb recognizes endogenous levels of total Helios protein. Non-specific non-nuclear staining was observed in some mouse tissues by immunohistochemistry.

Species Reactivity:

Human, Mouse

Species predicted to react based on 100% sequence homology

Bovine

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gly73 of human Helios protein.

Background

Helios (Ikaros family zinc finger 2, IKZF2) is an Ikaros family transcription factor composed of several zinc fingers that mediate DNA binding and homodimerization or heterodimerization with other Ikaros family proteins (1,2). In the hematopoietic system, Helios expression is restricted to T cells and early hematopoietic progenitors (1,2). In regulatory T cells, expression of Helios contributes to an anergic phenotype by binding to the IL-2 promoter and suppressing IL-2 transcription (3). In addition, alteration of the corresponding Helios gene IKZF2 is one hallmark of low-hypodiploid acute lymphoblastic leukemia (4).

  1. Hahm, K. et al. (1998) Genes Dev 12, 782-96.
  2. Kelley, C.M. et al. (1998) Curr Biol 8, 508-15.
  3. Baine, I. et al. (2013) J Immunol 190, 1008-16.
  4. Holmfeldt, L. et al. (2013) Nat Genet 45, 242-52.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IHC-Bond: IHC Leica Bond IHC-P: Immunohistochemistry (Paraffin)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 4
#89270

Helios (E4L5U) Rabbit mAb

Western Blotting Image 1: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb(上图)或 β-Actin (D6A8) Rabbit mAb #8457(下图)对不同细胞系的提取物进行蛋白印迹分析。正如预计的一样,RL 细胞不表达 Helios 蛋白。
Western Blotting Image 2: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb(上图)或 β-Actin (D6A8) Rabbit mAb #8457(下图)对 Jurkat、EL4 和 NIH/3T3 细胞的提取物进行蛋白印迹分析。正如预计的一样,未在 NIH/3T3 细胞中检测到 Helios 蛋白。
Immunoprecipitation Image 1: Helios (E4L5U) Rabbit mAb Expand Image
对来自 Jurkat 细胞提取物的 Helios 进行免疫沉淀法分析。泳道 1 为 10% 输入对照,泳道 2 为 Rabbit (DA1E) mAb IgG XP® 同型对照 #3900,泳道 3 为 Helios (E4L5U) Rabbit mAb。使用 Helios (E4L5U) Rabbit mAb 进行蛋白印迹分析。Mouse Anti-rabbit IgG (Conformation Specific) (L27A9) mAb (HRP Conjugate) #5127 用于检测,以避免与 IgG 具有的交叉反应性。
Immunohistochemistry Image 1: Helios (E4L5U) Rabbit mAb Expand Image
在 Leica® BOND Rx 上使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的人结肠癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 2: Helios (E4L5U) Rabbit mAb Expand Image
在 Leica® BOND Rx 上使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的人 T 细胞淋巴母细胞淋巴瘤进行免疫组织化学分析。
Immunohistochemistry Image 1: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb(上图)或 Helios Rabbit mAb(下图)对石蜡包埋的人 B 细胞非霍奇金氏淋巴瘤(左图)或前列腺癌(右图)细胞进行免疫组织化学分析。这两种抗体可检测人 Helios 上的独立、独特表位。使用两种抗体获得的相似染色模式有助于确认染色特异性。
Immunohistochemistry Image 2: Helios (E4L5U) Rabbit mAb Expand Image
以浓度匹配 Rabbit (DA1E) mAb IgG XP® 同型对照 #3900(右图)作为对照,使用 Helios (E4L5U) Rabbit mAb(左图)对石蜡包埋的人尿路上皮癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 3: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的 Jurkat 细胞沉淀物(左图,阳性)或 RL 细胞沉淀物(右图,阴性)进行免疫组织化学分析。
Immunohistochemistry Image 4: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的人鳞状细胞肺癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 5: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的小鼠脾细胞进行免疫组织化学分析。
Immunohistochemistry Image 6: Helios (E4L5U) Rabbit mAb Expand Image
使用 Helios (E4L5U) Rabbit mAb 对石蜡包埋的人卵巢浆液性癌细胞进行免疫组织化学分析。