来源
用途
交叉反应性
理论分子量
实际分子量
Rabbit
WB
H, M, R
43/50/54kDa
54kDa
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
-
-
-
-
-
-
-
抗体详细信息如下:
About this Antibody
Name
Phospho-CHEK1 (Ser345) Rabbit Polyclonal Antibody
Category
Rabbit Polyclonal Antibody (pAb); Primary antibody
Isotype
IgG
Purification method
Affinity purification
Positive samples
HT-29, HepG2
Cellular location
Cytoplasm, Nucleus, centrosome, cytoskeleton, microtubule organizing center
Customer validation
-
About the Immunogen
Immunogen
A synthetic phosphorylated peptide around S345 of human CHEK1 (NP_001265.2).
Sequence
SFSQP
Gene ID
1111
Swiss Prot
O14757
Synonyms
CHEK1; CHK1; checkpoint kinase 1
Category
Regulation of Apoptosis; G1/S Checkpoint; G2M/DNA Damage Checkpoint
Background
Chk1/ CHEK1 kinase acts downstream of ATM/ATR kinase and plays an important role in DNA damage checkpoint control, embryonic development, and tumor suppression. Activation of Chk1 involves phosphorylation at Ser317 and Ser345 by ATM/ATR, followed by autophosphorylation of Ser296. Activation occurs in response to blocked DNA replication and certain forms of genotoxic stress. While phosphorylation at Ser345 serves to localize Chk1 to the nucleus following checkpoint activation, phosphorylation at Ser317 along with site-specific phosphorylation of PTEN allows for re-entry into the cell cycle following stalled DNA replication. Chk1 exerts its checkpoint mechanism on the cell cycle, in part, by regulating the cdc25 family of phosphatases. Chk1 phosphorylation of cdc25A targets it for proteolysis and inhibits its activity through 14-3-3 binding. Activated Chk1 can inactivate cdc25C via phosphorylation at Ser216, blocking the activation of cdc2 and transition into mitosis. Centrosomal Chk1 has been shown to phosphorylate cdc25B and inhibit its activation of CDK1-cyclin B1, thereby abrogating mitotic spindle formation and chromatin condensation. Furthermore, Chk1 plays a role in spindle checkpoint function through regulation of aurora B and BubR1. Research studies have implicated Chk1 as a drug target for cancer therapy as its inhibition leads to cell death in many cancer cell lines.
包装清单：
产品编号
产品名称
包装
AF5773
Phospho-CHEK1 (Ser345) Rabbit Polyclonal Antibody
50μl
AZ050
Western一抗稀释液
50ml
—
说明书
1份
保存条件：
Phospho-CHEK1 (Ser345) Rabbit Polyclonal Antibody -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。
代表性图片：

Fig. 1. Western blot analysis of extracts of various cell lines, using Phospho-CHEK1-S345 antibody at 1:10000 dilution. Lysates/proteins: 25µg per lane. Blocking buffer: QuickBlock™ Blocking Buffer (P0231).
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