Anti-MAN1B1 Antibody, clone 1D6

Endoplasmic reticulum (ER) mannosyl-oligosaccharide 1,2-alpha-mannosidase (EC 3.2.1.113; UniProt Q9UKM7), also known as ER mannosyl-oligosaccharide 1,2-alpha-mannosidase, ER alpha-1,2-mannosidase, ERMan1, ERManI, ER mannosidase 1, Man9GlcNAc2-specific-processing alpha-mannosidase, Mannosidase alpha class 1B member 1) is encoded by the MAN1B1 gene in human. Originally thought to function in a similar fashion as its yeast ortholog Mns1p, which removes a terminal mannose unit to initiate a glycan-based ER-associated degradation (ERAD) signal. Mammalian MAN1B1 protein is actually localized in Golgi instead of ER. MAN1B1 protein participates in a Golgi-based quality control network that captures misfolded protein substrate, which escape from ER, most likely via COPII vesicles, and recycles them back to the ER for ERAD. Upon entering the Golgi, the initially escasped unfold proteins are retained by a cargo-capturing complex in which non-enzymatic regions of MAN1B1, including the decapeptide sequence (DPS) within the MAN1B1 luminal stem, play an integral role. Facilitated by direct interactions with gamma-COP, MAN1B1 promotes the recruitment of unfold proteins into COPI vesicles, which then recycles the unfold proteins back to the ER via retrograde COPI vesicles without the need for trimming by MAN1B1 protein.

~80/90 kDa observed. The calculated molecular weight of this protein is 80 kDa, but can be observed at ~90 kDa due to post translational modifications (Pan, S., et al. (2011). Mol. Bio. Cell. 22(16):2810-2822).

GST-tagged recombinant protein corresponding to human MAN1B1.

Anti-MAN1B1 Antibody, clone 1D6 is an antibody against MAN1B1 for use in Western Blotting, Immunoprecipitation, Immunocytochemistry.

Research Category
Signaling

Research Sub Category
Signaling Neuroscience

Western Blotting Analysis: 2.0 µg/mL from a representative lot detected MAN1B1 in 10 µg of PC12 cell lysate.
Immunoprecipitation Analysis: A representative lot immunoprecipitated MAN1B1 in HeLa cell lysate ((Pan, S., et al. (2011). Mol. Bio. Cell. 22(16):2810-2822).
Immunoprecipitation Analysis: A representative lot immunoprecipitated MAN1B1 in transfected HeLa cells (Iannotti, M.J., et al. (2014). J. Biol. Chem. 289(17):11844-11858).
Immunocytochemistry Analysis: A 1:500 dilution from a representative lot detected MAN1B1 in HeLa cells (Pan, S., et al. (2011). Mol. Bio. Cell. 22(16):2810-2822. & Iannotti, M.J., et al. (2014). J. Biol. Chem. 289(17):11844-11858).

Format: Purified

Protein G Purified

Purified mouse monoclonal IgG1κ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 2.0 µg/mL of this antibody detected MAN1B1 in 10 µg of HeLa cell lysate.

Concentration: Please refer to lot specific datasheet.

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