LKB1 antibody (pSer428)

Catalog No. ABIN2568294

Product Details anti-LKB1 Antibody

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

Binding Specificity: pSer428

Reactivity: Human, Mouse

Host: Rabbit

Clonality: Polyclonal

Conjugate: This LKB1 antibody is un-conjugated

Application: Western Blotting (WB)

Specificity: The antibody detects endogenous level of LKB1 only when phosphorylated at serine 428.

Purification: Antibodies were purified by affinity-chromatography using epitope-specific peptide.

Immunogen: LKB1 (phospho Ser428) antibody was raised against a peptide sequence around phosphorylation site of serine428 (R-L-S (p)-A-C) derived from Human LKB1 .

Isotype: IgG

Application Details

Application Notes: Western Blot: 1:500~1:1000

Restrictions: For Research Use only

Handling

Format: Liquid

Concentration: 1 mg/mL

Buffer: Antibody supplied in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 0.02 % sodium azide and 50 % glycerol.

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: Store antibody at -20°C for up to one year.

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: 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, leading to promote 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 and possibly p53/TP53. Acts as a key upstream regulator of AMPK by mediating phosphorylation and activation of AMPK catalytic subunits PRKAA1 and PRKAA2: it thereby regulates 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, 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 neurons 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 p53/TP53-dependent apoptosis via interaction with p53/TP53: translocates to mitochondrion during apoptosis and regulates p53/TP53-dependent apoptosis pathways.

Molecular Weight: 65 kDa

Gene ID: 6794

NCBI Accession: NP_000446

UniProt: Q15831

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