Synonyms: p21(CDKN1A)-activated kinase 4; p21-activated kinase 4; protein kinase related to S. cerevisiae STE20, effector for Cdc42Hs; p21 protein (Cdc42/Rac)-activated kinase 4
Summary: PAK proteins, a family of serine/threonine p21-activating kinases, include PAK1, PAK2, PAK3 and PAK4. PAK proteins are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. They serve as targets for the small GTP binding proteins Cdc42 and Rac and have been implicated in a wide range of biological activities. PAK4 interacts specifically with the GTP-bound form of Cdc42Hs and weakly activates the JNK family of MAP kinases. PAK4 is a mediator of filopodia formation and may play a role in the reorganization of the actin cytoskeleton. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008].
These shRNA constructs were designed against multiple splice variants at this gene locus. To be certain that your variant of interest is targeted, align it with our published shRNA design sequences. If these do not align, please utilize our custom shRNA service.
OriGene guarantees that the sequences in the shRNA expression cassettes are verified to correspond to the target gene with 100% identity. One of the four constructs at minimum are guaranteed to produce 70% or more gene expression knock-down provided a minimum transfection efficiency of 80% is achieved. Western Blot data is recommended over qPCR to evaluate the silencing effect of the shRNA constructs 72 hrs post transfection. To properly assess knockdown, the gene expression level from the included scramble control vector must be used in comparison with the target-specific shRNA transfected samples.
For non-conforming shRNA, requests for replacement product must be made within ninety (90) days from the date of delivery of the shRNA kit. To arrange for a free replacement with newly designed constructs, please contact Technical Services at firstname.lastname@example.org. Please provide your data indicating the transfection efficiency and measurement of gene expression knockdown compared to the scrambled shRNA control (Western Blot data preferred).
* Delivery time in business days.Occasional delay may occur due to complexity of the constructs.
The use of this shRNA has been cited in the following citations:
p21-Activated kinase 4 promotes prostate cancer progression through CREB, M-H Park, H-S Lee, C-S Lee, S T You, D-J Kim, B-H Park, M J Kang, W D Heo, E-Y Shin, M A Schwartz & E-G Kim,
[PAK4] p21-activated kinase 4 regulates ovarian cancer cell proliferation, migration, and invasion and contributes to poor prognosis in patients, Michelle K. Y. Siu, Hoi Yan Chan, Daniel S. H. Kong, Esther S. Y. Wong, Oscar G. W. Wong, Hextan Y. S. Ngan, Kar Fai Tam, Hongquan Zhang, Zhilun Li, Queeny K. Y. Chan, Sai Wah Tsao, Staffan Strömblad, and Annie N. Y. Cheung,
PNAS, Oct 2010; 107: 18622 - 18627
* Delivery time is an estimate in business days. Occasional delays may occur due to unforeseen complexities in the preparation of your construct. International customers may expect an additional 1-2 weeks in shipping