The MAGUK (Membrane Associated Guanylate kinase) family of proteins localize to regions of cell-cell contact, such as tight junctions in epithelial cells and synaptic junctions in neurons. In epithelia, membrane associated guanylate kinase, WW And PDZ domain containing 1 (MAGI-1) is localized at tight junctions and is expressed in three isoforms (MAGI-1a, MAGI-1b, and MAGI-1c). MAGI-1 was first identified in mouse as a protein interacting with K-RasB (Ras-like protein rasB).
Specificity
Recognizes rat MAGI-1 by immunoblotting (approx. 170, 130, and 120 kDa) and does not cross react with MAGI-2 or MAGI-3.
Immunogen
synthetic peptide corresponding to amino acids 282-296 of MAGI-1 with a carboxy terminal added cysteine residue conjugated to maleimide-activated KLH. The sequence is conserved in human and mouse.
Application
Anti-MAGI-1 antibody produced in rabbit has been used in
immunoblotting
western blotting
immunostaining
Biochem/physiol Actions
Membrane associated guanylate kinase, WW And PDZ domain containing 1 (MAGI-1) interacts with β-catenin. Neuroepithelial cell-transforming gene 1(nNET1) and actin binding proteins act as binding partners of MAGI-1. Interestingly, MAGI-1c is present in nucleus, suggesting that MAGI-1 may participate in the transmission of regulatory signals from the cell surface to the nucleus.
Physical form
Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Chinese journal of cancer research = Chung-kuo yen cheng yen chiu, 29(1), 25-35 (2017-04-05)
To explore the association of membrane-associated guanylate kinase inverted 1 (MAGI1) with gastric cancer (GC) and the related molecular mechanisms. The reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry (IHC) were utilized to measure the MAGI1 expression level in GC tissues.
MAGI-1: A Widely Expressed, Alternatively Spliced Tight Junction Protein
Dobrosotskaya IY, et al.
Biochemical and Biophysical Research Communications, 270(3), 903-909 (2000)
The possible association between the membrane-associated guanylate kinase with inverted domain structure-1 (MAGI1) and inflammation has been suggested, but the molecular mechanisms underlying this link, especially during atherogenesis, remain unclear. In endothelial cells (ECs) exposed to disturbed flow (d-flow), p90
There is compelling evidence that high-risk human papillomaviruses (HPV) can cause cervical cancer. Strikingly, HPV16 and 18 account for approximately 70% of all cervical cancers, whereas phylogenetically related types are found at much lower frequencies. Most likely, differences in the
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