|Application ||WB, IF|
|Reactivity||Human, Mouse, Rat|
|Calculated MW||28613 Da|
|Other Names||Golgi SNAP receptor complex member 1, 28 kDa Golgi SNARE protein, 28 kDa cis-Golgi SNARE p28, GOS-28, GOSR1, GS28|
|Target/Specificity||A synthetic peptide corresponding to residues near the N-terminus of human GOS-28 was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||GOS-28 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Involved in transport from the ER to the Golgi apparatus as well as in intra-Golgi transport. It belongs to a super-family of proteins called t-SNAREs or soluble NSF (N-ethylmaleimide- sensitive factor) attachment protein receptor. May play a protective role against hydrogen peroxide induced cytotoxicity under glutathione depleted conditions in neuronal cells by regulating the intracellular ROS levels via inhibition of p38 MAPK (MAPK11, MAPK12, MAPK13 and MAPK14). Participates in docking and fusion stage of ER to cis-Golgi transport. Plays an important physiological role in VLDL-transport vesicle-Golgi fusion and thus in VLDL delivery to the hepatic cis-Golgi.|
|Cellular Location||Golgi apparatus membrane; Single-pass type IV membrane protein. Note=Localizes throughout the Golgi apparatus, with lowest levels in the trans-Golgi network (By similarity). Enriched on vesicular components at the terminal rims of the Golgi. Found in Golgi microtubules at low temperature (15 degrees Celsius).|
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Provided below are standard protocols that you may find useful for product applications.
In eukaryotic cells, the Golgi apparatus receives newly synthesized proteins from the endoplasmic reticulum (ER) and delivers them after covalent modification to their destination in the cell. Although little is known about membrane-tubule-mediated transport, the molecular mechanism for vesicle-mediated transport is quite well understood, occurring through docking of SNAREs on the vesicle with those on the target membrane. (1). Transport of proteins along the exocytotic pathway is primarily achieved by vesicular intermediates. Two proteins, Golgi SNAREs of 27 kDa, GS27, and of 28 kDa, GS28 are important trafficking membrane proteins between the endoplasmic reticulum and the Golgi and between Golgi subcompartments (2). In vitro, GOS-28, A Golgi SNARE of 28 kD, is efficiently packaged into Golgi-derived vesicles, which are most likely COPI coated. Antibodies directed against GOS-28 block its ability to bind alpha-SNAP, partially inhibit transport from the cis to the medial cisternae, and do not inhibit budding of COP-coated vesicles, but do accumulate docked uncoated vesicles (3).
1. Bui TD, et al. Genomics 57(2):285-8, 1999
2. Lowe SL, et al. Nature 389(6653):881-4, 1997
3. Nagahama M, et al. J Cell Biol 133(3):507-16
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