Human/Mouse PAK3 Antibody

Catalog # Availability Size / Price Qty
AF6897
AF6897-SP
Detection of Human PAK3 by Western Blot.
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Human/Mouse PAK3 Antibody Summary

Species Reactivity
Human, Mouse
Specificity
Detects human PAK3 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) PAK1, rhPAK1B, rhPAK2, rhPAK4, rhPAK6, and rhPAK7 is observed.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant human PAK3
Leu138-Gln255
Accession # O75914
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.25 µg/mL
See below
Immunohistochemistry
5-15 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Western Blot Detection of Human PAK3 by Western Blot. View Larger

Detection of Human PAK3 by Western Blot. Western blot shows lysates of human brain (hypothalamus) tissue. PVDF membrane was probed with 0.25 µg/mL of Sheep Anti-Human PAK3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6897) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for PAK3 at approximately 65 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunohistochemistry PAK3 in Mouse Embryo. View Larger

PAK3 in Mouse Embryo. PAK3 was detected in immersion fixed frozen sections of mouse embryo (15 d.p.c.) using Sheep Anti-Human PAK3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6897) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to the cytoplasm of neuronal cells. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.

Immunohistochemistry PAK3 in Human Brain. View Larger

PAK3 in Human Brain. PAK3 was detected in immersion fixed paraffin-embedded sections of human brain (hippocampus) using Sheep Anti-Human PAK3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6897) at 3 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to neuronal cell bodies and processes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: PAK3

PAK3 (p21-activaed kinase 3; also beta -PAK, PAK3b and oligophrenin-3) is a cytoplasmic 68 kDa member of PAK group I, STE20 subfamily, STE Ser/Thr protein kinase family of molecules. It is expressed in neurons of cortical layers II, III and V, the arcuate nucleus, and neurons in the dorsal raphe plus locus coeruleus. PAK3 mediates axon and dentrite arborization, providing volume to the mass of the CNS. It binds to active GTPases which induce PAK autophosphorylation and activation. Human PAK3(b) is 559 amino acids (aa) in length. It contains one GTPase binding domain (aa 68-128) plus a protein kinase catalytic region (aa 283-534). Acetylation occurs on Lys535, and there are at least three potential phosphorylation sites. Alternate splicing generates three isoform variants. There is a 65 kDa short form that shows a deletion of aa 93-107 (PAK3a), a 69 kDa long form that shows a 21 aa substitution for aa 93-107 (PAK3c), and a 72 kDa very long isoform that contains the aforementioned 21 aa "substitution" inserted onto PAK3b after Thr92 (PAK3cb). PAK3b, c and cb are all constitutively active, and show only modest binding affinity towards GTPases. Over aa 138-255, human PAK3(b) shares 94% aa identity with mouse PAK3(b).

Long Name
p21-activated Kinase 3
Entrez Gene IDs
5063 (Human); 18481 (Mouse)
Alternate Names
beta-PAK; bPAK; CDKN1A; EC 2.7.11; EC 2.7.11.1; hPAK3; mental retardation, X-linked 47; MRX30; MRX47; oligophrenin-3; OPHN3; p21 (CDKN1A)-activated kinase 3; p21 protein (Cdc42/Rac)-activated kinase 3; p21-activated kinase 3; PAK3; PAK-3; PAK3beta; serine/threonine-protein kinase PAK 3

Product Datasheets

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Cell and Tissue Staining Kits

Immunohistochemistry Reagents

Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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