Rabbit PAK1 Polyclonal Antibody | anti-PAK1 antibody

Phospho-PAK1 (Ser199) Antibody

Cat. Num. AAA9612674

• Gene Names: PAK1; PAKalpha
• Reactivity: Human, Mouse, Rat
• Applications: Immunohistochemistry, ELISA
• Purity: The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
• Synonyms: PAK1; Polyclonal Antibody; Phospho-PAK1 (Ser199) Antibody; ADRB2; Alpha PAK; Alpha-PAK; MGC130000; MGC130001; p21 activated kinase 1; p21 protein (Cdc42/Rac) activated kinase 1; p21-activated kinase 1; p21/Cdc42/Rac1 activated kinase 1 (yeast Ste20 related); p21/Cdc42/Rac1-activated kinase 1 (STE20 homolog; yeast); p65 PAK; p65-PAK; P68-PAK; PAK alpha; PAK-1; Pak1; PAK1_HUMAN; Paka; PAKalpha; Protein kinase MUK2; Rac/p21-activated kinase; Serine/threonine-protein kinase PAK 1; STE20 homolog yeast; anti-PAK1 antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Specificity: Phospho-PAK1 (Ser199) Antibody detects endogenous levels of PAK1 only when phosphorylated at Ser199.; Tissue Specificity: Overexpressed in gastric cancer cells and tissues (at protein level).
• Purity/Purification: The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
• Form/Format: Liquid. Rabbit IgG in phosphate buffered saline, pH7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)

• Applicable Applications for anti-PAK1 antibody: Immunohistochemistry (IHC), Peptide ELISA (EIA)
• Application Notes: IHC: 1:50-1:200; Peptide ELISA: 1:20,000-1:40,000
• Immunogen: A synthesized peptide derived from human PAK1 around the phosphorylation site of Ser199.
• Conjugation: Unconjugated
• Fragment: Fab fragment
• Post Translational Modifications: Autophosphorylated in trans, meaning that in a dimer, one kinase molecule phosphorylates the other one. Activated by autophosphorylation at Thr-423 in response to a conformation change, triggered by interaction with GTP-bound CDC42 or RAC1. Activated by phosphorylation at Thr-423 by BRSK2 and by PDPK1. Phosphorylated by JAK2 in response to PRL; this increases PAK1 kinase activity. Phosphorylated at Ser-21 by PKB/AKT; this reduces interaction with NCK1 and association with focal adhesion sites. Upon DNA damage, phosphorylated at Thr-212 and translocates to the nucleoplasm. Phosphorylated at tyrosine residues, which can be enhanced by NTN1 (By similarity).
• Subunit Structure: Homodimer; homodimerization results in autoinhibition. Active as monomer. Component of cytoplasmic complexes, which also contains PXN, ARHGEF6 and GIT1. Interacts with NISCH (By similarity). Interacts with DVL1; mediates the formation of a DVL1, MUSK and PAK1 ternary complex involved in AChR clustering (By similarity). Binds to the caspase-cleaved p110 isoform of CDC2L1 and CDC2L2, p110C, but not the full-length proteins. Interacts with ARHGEF7. Interacts tightly with GTP-bound but not GDP-bound CDC42/P21 and RAC1 (By similarity). Probably found in a ternary complex composed of DSCAM, PAK1 and RAC1. Interacts with DSCAM (via cytoplasmic domain); the interaction is direct and enhanced in presence of RAC1. Interacts with SCRIB. Interacts with PDPK1. Interacts (via kinase domain) with RAF1. Interacts with NCK1 and NCK2. Interacts with TBCB. Interacts with CRIPAK. Interacts with BRSK2 (By similarity). Interacts with SNAI1. Interacts with CIB1 isoform 2. Interacts with CIB1 (via N-terminal region); the interaction is direct, promotes PAK1 activity and occurs in a calcium-dependent manner. Interacts with INPP5K.
• Similarity: Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily.
• Subcellular Location: Cytoplasm. Cell junction>Focal adhesion. Cell membrane. Cell projection>Ruffle membrane. Cell projection>Invadopodium. Nucleus>Nucleoplasm. Chromosome.; Note: Colocalizes with RUFY3, F-actin and other core migration components in invadopodia at the cell periphery (PubMed:25766321). Recruited to the cell membrane by interaction with CDC42 and RAC1. Recruited to focal adhesions upon activation. Colocalized with CIB1 within membrane ruffles during cell spreading upon readhesion to fibronectin. Upon DNA damage, translocates to the nucleoplasm when phosphorylated at Thr-212 where is co-recruited with MORC2 on damaged chromatin (PubMed:23260667).
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Immunohistochemistry (IHC)

(At 1/100 staining Rat stomach tissue by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the primary antibody at 4 degree C overnight. An HRP conjugated anti-Rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC)

(Staining Rat brain tissue by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the primary antibody at 4 degree C overnight. An HRP conjugated anti-Rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC)

(At 1/100 staining Mouse testis tissue by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the primary antibody at 4 degree C overnight. An HRP conjugated anti-Rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC)

(At 1/100 staining Human ovarian cancer by IHC-P. The sample was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The sample was then blocked and incubated with the primary antibody at 4 degree C overnight. An HRP conjugated anti-Rabbit antibody was used as the secondary antibody.)

Related Product Information for anti-PAK1 antibody

Protein kinase involved in intracellular signaling pathways downstream of integrins and receptor-type kinases that plays an important role in cytoskeleton dynamics, in cell adhesion, migration, proliferation, apoptosis, mitosis, and in vesicle-mediated transport processes. Can directly phosphorylate BAD and protects cells against apoptosis. Activated by interaction with CDC42 and RAC1. Functions as GTPase effector that links the Rho-related GTPases CDC42 and RAC1 to the JNK MAP kinase pathway. Phosphorylates and activates MAP2K1, and thereby mediates activation of downstream MAP kinases. Involved in the reorganization of the actin cytoskeleton, actin stress fibers and of focal adhesion complexes. Phosphorylates the tubulin chaperone TBCB and thereby plays a role in the regulation of microtubule biogenesis and organization of the tubulin cytoskeleton. Plays a role in the regulation of insulin secretion in response to elevated glucose levels. Part of a ternary complex that contains PAK1, DVL1 and MUSK that is important for MUSK-dependent regulation of AChR clustering during the formation of the neuromuscular junction (NMJ). Activity is inhibited in cells undergoing apoptosis, potentially due to binding of CDC2L1 and CDC2L2. Phosphorylates MYL9/MLC2. Phosphorylates RAF1 at 'Ser-338' and 'Ser-339' resulting in: activation of RAF1, stimulation of RAF1 translocation to mitochondria, phosphorylation of BAD by RAF1, and RAF1 binding to BCL2. Phosphorylates SNAI1 at 'Ser-246' promoting its transcriptional repressor activity by increasing its accumulation in the nucleus. In podocytes, promotes NR3C2 nuclear localization. Required for atypical chemokine receptor ACKR2-induced phosphorylation of LIMK1 and cofilin (CFL1) and for the up-regulation of ACKR2 from endosomal compartment to cell membrane, increasing its efficiency in chemokine uptake and degradation. In synapses, seems to mediate the regulation of F-actin cluster formation performed by SHANK3, maybe through CFL1 phosphorylation and inactivation. Plays a role in RUFY3-mediated facilitating gastric cancer cells migration and invasion. In response to DNA damage, phosphorylates MORC2 which activates its ATPase activity and facilitates chromatin remodeling.

NCBI and Uniprot Product Information

• NCBI GI #: 190886457
• NCBI GeneID: 5058
• NCBI Accession #: NP_001122092.1
• NCBI GenBank Nucleotide #: NM_001128620.1
• UniProt Accession #: Q13153; O75561; Q13567; Q32M53; Q32M54; Q86W79
• Molecular Weight: 60,647 Da
• NCBI Official Full Name: serine/threonine-protein kinase PAK 1 isoform 1
• NCBI Official Synonym Full Names: p21 protein (Cdc42/Rac)-activated kinase 1
• NCBI Official Symbol: PAK1
• NCBI Official Synonym Symbols: PAKalpha
• NCBI Protein Information: serine/threonine-protein kinase PAK 1; p65-PAK; alpha-PAK; STE20 homolog, yeast; p21/Cdc42/Rac1-activated kinase 1 (yeast Ste20-related); p21/Cdc42/Rac1-activated kinase 1 (STE20 homolog, yeast)
• UniProt Protein Name: Serine/threonine-protein kinase PAK 1
• Protein Family: Serine/threonine-protein kinase
• UniProt Gene Name: PAK1
• UniProt Synonym Gene Names: PAK-1
• UniProt Entry Name: PAK1_HUMAN

NCBI Description

This gene encodes a family member of serine/threonine p21-activating kinases, known as PAK proteins. These proteins are critical effectors that link RhoGTPases to cytoskeleton reorganization and nuclear signaling, and they serve as targets for the small GTP binding proteins Cdc42 and Rac. This specific family member regulates cell motility and morphology. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2010]

Uniprot Description

PAK1: a protein kinase of the STE20 family that regulates cell motility and morphology. Critical RhoGTPase effector that regulates cytoskeleton reorganization, the JNK MAPK pathway, and nuclear signaling. Binding of Rac/cdc42 to the PBD of PAK1 causes autophosphorylation and conformational change. Phosphorylated and activated by PDK.

Protein type: EC 2.7.11.1; Protein kinase, STE; Kinase, protein; Protein kinase, Ser/Thr (non-receptor); STE group; STE20 family; PAKA subfamily

Chromosomal Location of Human Ortholog: 11q13-q14

Cellular Component: Golgi apparatus; nuclear membrane; focal adhesion; protein complex; dendrite; intercellular junction; Z disc; cytosol; filamentous actin; ruffle; growth cone; axon; cytoplasm; plasma membrane

Molecular Function: collagen binding; protein serine/threonine kinase activity; protein binding; protein kinase binding; ATP binding; receptor signaling protein serine/threonine kinase activity; protein kinase activity

Biological Process: axon guidance; positive regulation of JNK activity; exocytosis; wound healing; apoptosis; protein amino acid autophosphorylation; positive regulation of estrogen receptor signaling pathway; receptor clustering; T cell receptor signaling pathway; protein amino acid phosphorylation; positive regulation of stress fiber formation; ephrin receptor signaling pathway; dendrite development; neuromuscular junction development; MAPKKK cascade; positive regulation of peptidyl-serine phosphorylation; cellular response to insulin stimulus; branching morphogenesis of a tube; actin cytoskeleton reorganization; T cell costimulation; response to hypoxia; innate immune response; positive regulation of protein amino acid phosphorylation; mitotic cell cycle; vascular endothelial growth factor receptor signaling pathway; neurite morphogenesis