LKB1/STK11 Antibody


Immunocytochemistry/ Immunofluorescence: LKB1/STK11 Antibody [NBP1-51174] - Analysis of LKB1 (R425) pAb in extracts from NIH-3T3.
Immunohistochemistry-Paraffin: LKB1/STK11 Antibody [NBP1-51174] - Human lung carcinoma tissue.

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LKB1/STK11 Antibody Summary

Synthetic peptide, corresponding to amino acids 396-442 of Human LKB1.
LKB1 (R425) pAb detects endogenous levels of LKB1 protein.
Immunogen affinity purified
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  • Immunocytochemistry/Immunofluorescence 1:50-1:200
  • Immunohistochemistry 1:10-1:500
  • Immunohistochemistry-Paraffin 1:50-1:200
Application Notes
Immunofluorescence (IF) analysis of LKB1 (R425) pAb in extracts from NIH-3T3Immunohistochemistry (IHC) analyzes of LKB1 (R425) pAb in paraffin-embedded human lung carcinoma tissue.
Theoretical MW
54 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Reactivity Notes

Cross reacts with Human and Mouse.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (pH 7.2)
0.05% Sodium Azide
1.0 mg/ml
Immunogen affinity purified

Alternate Names for LKB1/STK11 Antibody

  • EC
  • 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


LKB1 (STK11) is a serine/threonine kinase and tumor suppressor that helps control cell structure, apoptosis and energy homeostasis through regulation of numerous downstream kinases. A cytosolic protein complex comprised of LKB1, putative kinase STRAD, and the MO25 scaffold protein, activates both AMP-activated protein kinase (AMPK) and several AMPK-related kinases. AMPK plays a predominant role as the master regulator of cellular energy homeostasis, controlling downstream effectors that regulate cell growth and apoptosis in response to cellular ATP concentrations. LKB1 appears to be phosphorylated in cells at several sites, including human LKB1 at Ser31/325/428 and Thr189/336/363. Mutation in the corresponding LKB1 gene causes Peutz-Jeghers syndrome (PJS), an autosomal dominant disorder characterized by benign GI tract polyps and dark skin lesions of the mouth, hands and feet. A variety of other LKB1 gene mutations have been associated with the formation of sporadic cancers in several tissues.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Gene Symbol STK11