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Safety Information

MABS157

Sigma-Aldrich

Anti-O-Linked N-Acetylglucosamine Antibody, clone RL2

clone RL2, from mouse

Synonym(s):

O-Linked N-Acetylglucosamine

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

RL2, monoclonal

species reactivity (predicted by homology)

all

technique(s)

affinity binding assay: suitable
electron microscopy: suitable
immunocytochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1κ

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... OGT(8473)

General description

Posttranslational modification of proteins by β-linked N-acetylglucosamine (β-GlcNAc) via the hydroxyl moieties on serine or threonine residues is termed O-linked β-GlcNAc or simply O-GlcNAc. O-GlcNAc is one of the most abundant posttranslational modifications within the nucleocytoplasmic compartments of all animals and plants. Unlike other types of protein glycosylations, O-GlcNAc occurs exclusively within the nuclear and cytoplasmic compartments and is generally not further modified to form more elongated structures. In addition, O-GlcNAcylation is a highly dynamic and reversible process. The O-GlcNAc transferase (OGT) attaches O-GlcNAc to proteins at specific serine or threonine residues, while O-GlcNAcase catalyzes the removal/hydrolysis of O-GlcNAc from proteins. In fact, a dynamic interplay between O-GlcNAcylation and serine/threonine phosphorylation plays an important role in regulating cellular signaling. Tau and RNA polymerase II (Pol II) are two well known proteins that undergo modification by O-GlcNAcylation. In Alzheimer’s diseased human brains, tau becomes extensively phosphorylated and less O-GlcNAcylated. Similarly, O-GlcNAc is removed and replaced with O-phosphate on the Poly II CTD when the elongation phase of transcription is initiated.

Specificity

Specifically recoginzes O-linked N-Acetylglucosamine (O-GlcNAc) moieties on O-GlcNAcylated proteins and peptides. Exhibits little reactivity toward free GIcNAc and no reactivity toward GalNac. Galactosyltransferase treatment of O-GlcNAcylated proteins results in galactosylation of O-GlcNAc via β1-4 linkage and a complete loss of binding by clone RL2 (Holt, G.D., et al. (1987). J. Cell Biol. 104(5):1157-1164).
Target structure is not species-specific.

Immunogen

Pore complex-lamina fraction purified from rat liver nuclear envelopes corresponding to Rat O-Linked N-Acetylglucosamine.

Application

Anti-O-Linked N-Acetylglucosamine Antibody, clone RL2 is an antibody against O-Linked N-Acetylglucosamine for use in Western Blotting, Immunocytochemistry, Affinity Binding Assay, Electron Microscopy, Immunoprecipitation.
Immunocytochemistry Analysis: 4.0 µg/mL from a representative lot detected O-Linked N-Acetylglucosamine in HeLa cells.
Immunocytochemistry Analysis: A representative lot immunostained nuclear envelopes, but not the nuclear interior, of digitonin-permeabilized HeLa cells. Clone RL2 stained the nuclear interior only among Triton X-100-permeabilized HeLa cells without intact nuclear envelopes (Adam, S.A., et al. (1990). J. Cell Biol. 111(3):807-816).
Affinity Binding Assay: A representative lot was radiolabeled with 125I and studied for its binding characteristics toward isolated rat liver nuclear envelopes (Snow, C.M., et al. (1987). J. Cell Biol. 104(5):1143-1156).
Electron Microscopy: A representative lot localized the O-GlcNAc immunoreactivity in isolated rat liver nuclear envelopes (Snow, C.M., et al. (1987). J. Cell Biol. 104(5):1143-1156).
Western Blotting Analysis: A representative lot detected O-GlcNAcylated proteins in rat liver nuclear envelopes preparations (Snow, C.M., et al. (1987). J. Cell Biol. 104(5):1143-1156; Holt, G.D., et al. (1987). J. Cell Biol. 104(5):1157-1164).
Immunoprecipitation Analysis: A representative lot immunoprecipitated O-GlcNAcylated proteins from solubilized rat liver nuclear envelopes preparations. Pretreatment of nuclear envelopes preparations with galactosyltrarnsferase prevented the immunoprecipitation of glycoproteins by clone RL2 (Snow, C.M., et al. (1987). J. Cell Biol. 104(5):1143-1156; Holt, G.D., et al. (1987). J. Cell Biol. 104(5):1157-1164).

Quality

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 1.0 µg/mL of this antibody detected O-Linked N-Acetylglucosamine in 10 µg of HeLa cell lysate.

Target description

Variable, depending on the size(s) of the O-GlcNAcylated protein(s).

Physical form

Format: Purified

Other Notes

Concentration: Please refer to lot specific datasheet.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

MABS157:


Certificates of Analysis (COA)

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Monoclonal antibodies identify a group of nuclear pore complex glycoproteins.
Snow, CM; Senior, A; Gerace, L
The Journal of cell biology null
Nuclear protein import in permeabilized mammalian cells requires soluble cytoplasmic factors.
Adam, SA; Marr, RS; Gerace, L
The Journal of cell biology null
Nuclear pore complex glycoproteins contain cytoplasmically disposed O-linked N-acetylglucosamine.
Holt, GD; Snow, CM; Senior, A; Haltiwanger, RS; Gerace, L; Hart, GW
The Journal of cell biology null
Jin-Wei Jhu et al.
International journal of molecular sciences, 22(18) (2021-09-29)
Glutamine and lipids are two important components of proliferating cancer cells. Studies have demonstrated that glutamine synthetase (GS) boosts glutamine-dependent anabolic processes for nucleotide and protein synthesis, but the role of GS in regulating lipogenesis remains unclear. This study identified
Ilaria Zuliani et al.
International journal of molecular sciences, 22(7) (2021-05-01)
The disturbance of protein O-GlcNAcylation is emerging as a possible link between altered brain metabolism and the progression of neurodegeneration. As observed in brains with Alzheimer's disease (AD), flaws of the cerebral glucose uptake translate into reduced protein O-GlcNAcylation, which

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