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Safety Information

P7871

Sigma-Aldrich

Anti-phospho-PAK1/2/3 (pSer141) antibody produced in rabbit

affinity isolated antibody, buffered aqueous glycerol solution

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About This Item

MDL number:
MFCD06411890
UNSPSC Code:
12352203
NACRES:
NA.44

biological source

rabbit

Quality Level

200

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous glycerol solution

species reactivity

human

technique(s)

western blot: 1:1,000 using Cos cells transiently transfected with PAK1, PAK2, or PAK3, and co-transfected with V12 Cdc42 and grown either as adherent cultures to activate PAK, or placed in suspension to suppress PAK activation

UniProt accession no.

Q13153

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

phosphorylation (pSer141)

Gene Information

human ... PAK1(5058)

General description

p21-activated kinases are a family of highly conserved serine/threonine protein kinases that are activated by small GTPases of Cdc42 and Rac families. There are 2 groups of PAKs in mammals, group A and B. The group A members are three isoforms, PAK1, PAK2, and PAK3 (also known as α-PAK, γ-PAK, and β-PAK, respectively). PAKs are actively involved in regulation of MAPK pathways by phosphorylation of Raf-1 and MEK-1. They also regulate cytoskeletal reorganization by interaction with GTPases. Autophosphorylation of serine 141 (serine 144 for PAK1 and serine 139 for PAK3), catalyzed by Cdc42, is required for activation of PAK.
The antibody detects human PAK1 (46% homologous), PAK2, and PAK3 (46% homologous). Other species have not been tested.

Specificity

The antibody is highly selective for the phosphorylated form of PAK and can be used to detect an active form of PAK1, as well as PAK2 and PAK3.

Immunogen

synthetic phosphopeptide derived from the region of human PAK2 that contains serine 141.

Application

A working dilution of 1:1000 is recommended for immunoblotting detection in Cos cells transiently transfected with PAK1, PAK2, or PAK3, and co-transfected with V12 Cdc42 and grown either as adherent cultures to activate PAK, or placed in suspension to suppress PAK activation.

Physical form

Solution in Dulbecco′s phosphate buffered saline (without Mg2+ and Ca2+), pH 7.3, with 50% glycerol, 1.0 mg/mL BSA (IgG and protease free) and 0.05% sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

P7871-BULK:
P7871-1VL:
P7871-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Clemens Hofmann et al.
Journal of cell science, 117(Pt 19), 4343-4354 (2004-08-28)
p21-activated kinases (Paks) are a highly conserved family of enzymes that bind to and are activated by small GTPases of the Cdc42 and Rac families. With the notable exception of plants, nearly all eukaryotes encode one or more Pak genes
Mengwei Zang et al.
The Journal of biological chemistry, 277(6), 4395-4405 (2001-12-26)
Activation of Raf-1 is a complex process in which phosphorylation of Ser(338)-Tyr(341) is a critical step. Previous studies have shown that Pak1/2 is implicated in both Ras-dependent and -independent activation of Raf-1 by phosphorylating Raf Ser(338). The present study explores
Zhou-shen Zhao et al.
The Biochemical journal, 386(Pt 2), 201-214 (2004-11-19)
The Rho GTPases are a family of molecular switches that are critical regulators of signal transduction pathways in eukaryotic cells. They are known principally for their role in regulating the cytoskeleton, and do so by recruiting a variety of downstream
C Chong et al.
The Journal of biological chemistry, 276(20), 17347-17353 (2001-03-30)
The p21-activated kinases (PAKs), in common with many kinases, undergo multiple autophosphorylation events upon interaction with appropriate activators. The Cdc42-induced phosphorylation of PAK serves in part to dissociate the kinase from its partners PIX and Nck. Here we investigate in
Christy C Ong et al.
Oncotarget, 2(6), 491-496 (2011-06-10)
The p21-activated kinases (PAKs) are central players in growth factor signaling networks and morphogenetic processes that control proliferation, cell polarity, invasion and actin cytoskeleton organization. This raises the possibility that interfering with PAK activity may produce significant anti-tumor activity. In
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