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M5691

Sigma-Aldrich

Anti-MAGI-1 antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

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MDL number:
UNSPSC Code:
12352203
NACRES:
NA.46

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

IgG fraction of antiserum

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

species reactivity

rat

technique(s)

microarray: suitable
western blot: 1:500 using rat brain extracts

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... MAGI1(9223)
mouse ... Magi1(14924)
rat ... Cnksr3(308113)

General description

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.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

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MAGI-1: A Widely Expressed, Alternatively Spliced Tight Junction Protein
Laura RP, et al.
Experimental Cell Research, 275(2), 155-170 (2002)
Shuqin Jia et al.
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)
E6AP-dependent degradation of DLG4/PSD95 by high-risk human papillomavirus type 18 E6 protein
Handa K, et al.
Journal of Virology, 81(3), 1379-1389 (2007)
Jun-Ichi Abe et al.
JCI insight, 4(7) (2019-04-05)
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

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