Anti-Phospho-LKB1 (Ser428) Antibody

Product Name

Anti-Phospho-LKB1 (Ser428) Antibody

View all LKB1/STK11 Antibodies

SKU/Catalog Number

M00217-1

Size

50 µl

Description

Boster Bio Anti-Phospho-LKB1 (Ser428) Antibody (Catalog # M00217-1). Tested in WB application(s). This antibody reacts with Human.

Storage & Handling

Maintain refrigerated at 2-8°C for up to 2 weeks. For long-term storage, store at -20°C in small aliquots to prevent freeze-thaw cycles.

Cite This Product

Anti-Phospho-LKB1 (Ser428) Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # M00217-1)

Host

Rabbit

Contents

Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide.

Clonality

Polyclonal

Isotype

Rabbit IgG

Immunogen

This Phospho-LKB1 (Ser428) antibody is generated from a rabbit immunized with a KLH conjugated synthetic peptide between 388-429 amino acids from the human LKB1 (Ser428).

*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.

Reactive Species

M00217-1 is reactive to STK11 in Human

Applications

M00217-1 is guaranteed for WB Boster Guarantee

Observed Molecular Weight

Calculated molecular weight

48.636kDa

Background of LKB1/STK11

Tumor suppressor serine/threonine-protein kinase that controls the activity of AMP-activated protein kinase (AMPK) family members, thereby playing a role in various processes such as cell metabolism, cell polarity, apoptosis and DNA damage response. Acts by phosphorylating the T-loop of AMPK family proteins, thus promoting their activity: phosphorylates PRKAA1, PRKAA2, BRSK1, BRSK2, MARK1, MARK2, MARK3, MARK4, NUAK1, NUAK2, SIK1, SIK2, SIK3 and SNRK but not MELK. Also phosphorylates non- AMPK family proteins such as STRADA, PTEN and possibly p53/TP53. Acts as a key upstream regulator of AMPK by mediating phosphorylation and activation of AMPK catalytic subunits PRKAA1 and PRKAA2 and thereby regulates processes including: inhibition of signaling pathways that promote cell growth and proliferation when energy levels are low, glucose homeostasis in liver, activation of autophagy when cells undergo nutrient deprivation, and B-cell differentiation in the germinal center in response to DNA damage. Also acts as a regulator of cellular polarity by remodeling the actin cytoskeleton. Required for cortical neuron polarization by mediating phosphorylation and activation of BRSK1 and BRSK2, leading to axon initiation and specification. Involved in DNA damage response: interacts with p53/TP53 and recruited to the CDKN1A/WAF1 promoter to participate in transcription activation. Able to phosphorylate p53/TP53; the relevance of such result in vivo is however unclear and phosphorylation may be indirect and mediated by downstream STK11/LKB1 kinase NUAK1. Also acts as a mediator of p53/TP53-dependent apoptosis via interaction with p53/TP53: translocates to the mitochondrion during apoptosis and regulates p53/TP53-dependent apoptosis pathways. In vein endothelial cells, inhibits PI3K/Akt signaling activity and thus induces apoptosis in response to the oxidant peroxynitrite (in vitro). Regulates UV radiation-induced DNA damage response mediated by CDKN1A. In association with NUAK1, phosphorylates CDKN1A in response to UV radiation and contributes to its degradation which is necessary for optimal DNA repair (PubMed:25329316).

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

WB: 1:1000

Validation Images & Assay Conditions

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Western blot analysis of lysates from Hela cell line, untreated or treated with TPA, 200nM and UV, using (upper) or Beta-actin (lower).

Gene/Protein Information For STK11 (Source: Uniprot.org, NCBI)

Alternative Names

EC 2.7.11.1; LKB1 serine/threonine kinase 11 (Peutz-Jeghers syndrome); LKB1; PJS polarization-related protein LKB1; PJS; Renal carcinoma antigen NY-REN-19; serine/threonine kinase 11; serine/threonine-protein kinase 11; Serine/threonine-protein kinase LKB1; STK11 STK11 LKB1, PJS, hLKB1 serine/threonine kinase 11 serine/threonine-protein kinase STK11|liver kinase B1|polarization-related protein LKB1|renal carcinoma antigen NY-REN-19|serine/threonine-protein kinase 11|serine/threonine-protein kinase LKB1

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In this infographic, you will see the following information for STK11: database IDs, superfamily, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post-translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact [email protected].

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