LKB1 Antibody (YA6032)

Cat. No.: HY-P86340: Data Sheet COA
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LKB1 Antibody (YA6032) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to LKB1.

For research use only. We do not sell to patients.

Size	Stock	Quantity
10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Verification Image
Background
Documentation

Description

LKB1 Antibody (YA6032) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to LKB1.

Host

Rabbit

Clonality

Monoclonal

Molecular Weight

Predicted band size: 49 kDa;

Observed band size: 60 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse, Rat

SwissProt ID

Q15831

Gene ID

6794 [NCBI]

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:2000-1:10000
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:200-1:1000
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-1:20000
IP IP: Immunoprecipitation	1:50-1:200

Purity	Protein A	Conjugation	Non-conjugated
Modification	Unmodified	Isotype	IgG

Appearance

Liquid

Formulation

Supplied in PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image

Western blot analysis of extracts from HEK293 (lane 2(20μg), K562 (lane 3(20μg), L929 (lane 4(20μg) and U251 (lane 5(20μg) using LKB1 Antibody (HY-P86340) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000)and Loading control antibody (Beta Actin, HY-P80993, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

Background

Function：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. 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); Has a role in spermiogenesis

Subcellular Localization：Nucleus; Cytoplasm; Membrane; Mitochondrion; Nucleus; Cytoplasm

Expression：
Tissue_specificity:Widely expressed. Strongest expression is observed in the testes and fetal liver.

Isoforms & Post-Translational Modification：Q15831 has 2 isomers: Q15831-1: 48636 Da (predicted); Q15831-2: 45387 Da (predicted).
Phosphorylated by ATM at Thr-363 following ionizing radiation (IR). Phosphorylation at Ser-428 by RPS6KA1 and/or some PKA is required to inhibit cell growth. Phosphorylation at Ser-428 is also required during neuronal polarization to mediate phosphorylation of BRSK1 and BRSK2 (By similarity). Phosphorylation by PKC/PRKCZ at Ser-399 in isoform 2 promotes metformin (or peroxynitrite)-induced nuclear export of STK11 and activation of AMPK. UV radiation-induced phosphorylation at Thr-363 mediates CDKN1A degradation (By similarity);Acetylated. Deacetylation at Lys-48 enhances cytoplasmic localization and kinase activity in vitro

Subunit：Catalytic component of a trimeric complex composed of STK11/LKB1, STRAD (STRADA or STRADB) and CAB39/MO25 (CAB39/MO25alpha or CAB39L/MO25beta): the complex tethers STK11/LKB1 in the cytoplasm and stimulates its catalytic activity. Found in a ternary complex composed of SMAD4, STK11/LKB1 and STK11IP. Interacts with p53/TP53, SMAD4, STK11IP and WDR6. Interacts with NR4A1. Interacts with NISCH; this interaction may increase STK11 activity. Interacts with PTEN; leading to PTEN phosphorylation. Interacts with SIRT1; the interaction deacetylates STK11. Interacts with CDKN1A

RRID

AB_3719124

Synonyms

STK11; LKB1; PJS; Serine/threonine-protein kinase STK11; Liver kinase B1; LKB1; hLKB1; Renal carcinoma antigen NY-REN-19

Documentation

Select Batch:

Data Sheet (235 KB) SDS (251 KB)

COA (206 KB)

User Guide for Antibodies (1077 KB)