来源
用途
交叉反应性
理论分子量
实际分子量
Rabbit
WB, IHC
H, M, R
18kDa
21kDa
WB, Western blot; IP, Immunoprecipitation; IF, Immunofluorescence; IHC, Immunohistochemistry; ICC, Immunocytochemistry; FC, Flow Cytometry; ChIP, Chromatin Immunoprecipitation Assay; ChIP-seq, ChIP-sequencing.
H, Human; M, Mouse; R, Rat; C, Chicken; Cw, Cow; Dg, Dog; Gp, Guinea pig; Hm, Hamster; Hr, Horse; Mk, Monkey; Pg, Pig; Rb, Rabbit; S, Sheep; Z, Zebrafish; All, all species expected.
配套提供了Western一抗稀释液，可以用于Western检测或其它适当用途时的一抗稀释。
建议抗体使用时的稀释比例如下(实际使用时需根据抗原水平的高低作适当调整)：
WB
IP
IF
IHC
ICC
FC
ChIP
ChIP-seq
1:500-1:2000
-
-
1:20-1:100
1:20-1:100
-
-
-
抗体详细信息如下::
About this Antibody
Name
P21 Waf1/Cip1 Rabbit Polyclonal Antibody (KO Validated)
Category
Rabbit Polyclonal Antibody (pAb); Primary antibody
Isotype
IgG
Purification method
Affinity purification
Positive samples
U-87MG
Cellular location
Cytoplasm, Nucleus
Customer validation
-
About the Immunogen
Immunogen
Recombinant fusion protein of human P21 (NP_001207707.1).
Sequence
MSEPAGDVRQNPCGSKACRRLFGPVDSEQLSRDCDALMAGCIQEARERWNFDFVTETPLEGDFAWERVRGLGLPKLYLPTGPRRGRDELGGGRRPGTSPALLQGTAEEDHVDLSLSCTLVPRSGEQAEGSPGGPGDSQGRKRRQTSMTDFYHSKRRLIFSKRKP
Gene ID
1026
Swiss Prot
P38936
Synonyms
CDKN1A; CAP20; CDKN1; CIP1; MDA-6; P21; SDI1; WAF1; p21CIP1; cyclin-dependent kinase inhibitor 1
Category
G1/S Checkpoint; G2M/DNA Damage Checkpoint; PI3K/Akt Signaling; AMPK Signaling
Background
The tumor suppressor protein p21 Waf1/Cip1 acts as an inhibitor of cell cycle progression. It functions in stoichiometric relationships forming heterotrimeric complexes with cyclins and cyclin-dependent kinases. In association with CDK2 complexes, it serves to inhibit kinase activity and block progression through G1/S. However, p21 may also enhance assembly and activity in complexes of CDK4 or CDK6 and cyclin D. The carboxy-terminal region of p21 is sufficient to bind and inhibit PCNA, a subunit of DNA polymerase, and may coordinate DNA replication with cell cycle progression. Upon UV damage or during cell cycle stages when cdc2/cyclin B or CDK2/cyclin A are active, p53 is phosphorylated and upregulates p21 transcription via a p53-responsive element. Protein levels of p21 are downregulated through ubiquitination and proteasomal degradation.
包装清单：
产品编号
产品名称
包装
AF5252
P21 Waf1/Cip1 Rabbit Polyclonal Antibody (KO Validated)
50μl
AZ050
Western一抗稀释液
50ml
—
说明书
1份
保存条件：
P21 Waf1/Cip1 Rabbit Polyclonal Antibody (KO Validated) -20ºC保存，Western一抗稀释液-20ºC或4ºC保存，一年有效。Western一抗稀释液优先推荐4ºC保存，长期不使用可以考虑-20ºC保存，但冻融可能会导致出现轻微的浑浊和少量不溶物。
注意事项：
如果本抗体用于Western blot (WB)、免疫荧光(IF)、免疫细胞化学(ICC)等实验，请注意回收使用过的稀释抗体。回收的抗体通常至少可以重复使用5-10次。稀释后的抗体，包括已经使用过的稀释抗体，请4℃保存。
回收后重复使用的抗体，使用方法同新鲜稀释的抗体。如果在重复使用过程中发现抗体出现轻微混浊现象，可以10,000g离心1-3分钟，取上清用于后续检测。如果回收的抗体出现明显的絮状物或长霉长菌等情况，则可以考虑废弃该抗体。
提供的Western一抗稀释液也可以用于免疫荧光(IF)、免疫组化(IHC)、免疫细胞化学(ICC)等适当用途。如果希望获得最佳的检测效果，请考虑使用上述检测专用的一抗稀释液。
本产品仅限于专业人员的科学研究用，不得用于临床诊断或治疗，不得用于食品或药品，不得存放于普通住宅内。
为了您的安全和健康，请穿实验服并戴一次性手套操作。
4. 代表性图片：
Fig. 1. Western blot analysis of extracts of U-87MG cells, using P21 antibody at 1:500 dilution. Secondary antibody: HRP-labeled Goat Anti-Rabbit IgG(H+L) (A0208) at 1:1000 dilution. Lysates/proteins: 25µg per lane. Blocking buffer: QuickBlock™ Blocking Buffer (P0231). Detection: BeyoECL Star (P0018A). Exposure time:1s.
Fig. 2. Western blot analysis of extracts from normal (control) and P21 knockout (KO) HeLa cells, using P21 antibody at 1:500 dilution. Secondary antibody: HRP-labeled Goat Anti-Rabbit IgG(H+L) (A0208) at 1:1000 dilution. Lysates/proteins: 25µg per lane. Blocking buffer: QuickBlock™ Blocking Buffer (P0231). Detection: BeyoECL Star (P0018A). Exposure time:1s.
Fig. 3. Immunohistochemistry of paraffin-embedded human colon carcinoma using P21 antibody at dilution of 1:100 (40x lens).
Fig. 4. Immunohistochemistry of paraffin-embedded human uterine cancer using P21 antibody at dilution of 1:100 (40x lens).
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