LKB1 antibody (AA 14-44)

Catalog No. ABIN3032540

Product Details anti-LKB1 Antibody

Target: LKB1 (STK11) (serine/threonine Kinase 11 (STK11))

Binding Specificity: AA 14-44

Reactivity: Human

Host: Rabbit

Clonality: Polyclonal

Conjugate: This LKB1 antibody is un-conjugated

Application: Western Blotting (WB), ELISA, Immunohistochemistry (IHC), Immunofluorescence (IF), Flow Cytometry (FACS)

Cross-Reactivity (Details): Expected species reactivity: Mouse, Rat, Chicken, Xenopus

Purification: Purified

Immunogen: A portion of amino acids 14-44 from the human protein was used as the immunogen for this LKB1 antibody.

Isotype: Ig Fraction

Application Details

Application Notes: Titration of the LKB1 antibody may be required due to differences in protocols and secondary/substrate sensitivity.\. IHC (Paraffin): 1:50-1:100,Western blot: 1:1000,Flow Cytometry: 1:10-1:50,Immunofluorescence: 1:10-1:50

Restrictions: For Research Use only

Handling

Format: Liquid

Buffer: In 1X PBS, pH 7.4, with 0.09 % sodium azide

Preservative: Sodium azide

Precaution of Use: This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Storage: -20 °C

Storage Comment: Aliquot the LKB1 antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles.

Target Details for LKB1

Target: LKB1 (STK11) (serine/threonine Kinase 11 (STK11))

Alternative Name: LKB1 (STK11 Products)

Synonyms: pjs antibody, LKB1 antibody, XEEK1 antibody, Stk11 antibody, PJS antibody, hLKB1 antibody, AA408040 antibody, Lkb1 antibody, Par-4 antibody, R75140 antibody, mLKB1 antibody, wu:fj61a05 antibody, zgc:110180 antibody, xeek1 antibody, serine/threonine kinase 11 antibody, polarization-related protein LKB1 antibody, serine/threonine kinase 11 L homeolog antibody, STK11 antibody, stk11 antibody, LOC662493 antibody, Stk11 antibody, stk11.L antibody

Background: LKB1 is a 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. [UniProt]

UniProt: Q15831

Pathways: AMPK Signaling, Carbohydrate Homeostasis, Regulation of Carbohydrate Metabolic Process, Warburg Effect