GRASP55 (L215) pAb

The Golgi apparatus is a highly complex organelle comprised of a stack of cisternal membranes on the secretory pathway from the ER to the cell surface. The structure is maintained by an exoskeleton or Golgi matrix constructed from a family of coiled-coil protein, the golgins and other peripheral membrane components such as GRASP55 and GRASP65. GRASP55 (Golgi reassembly stacking protien or p59) is a component of the Golgi stacking machinery. GRASP55 is highly homologous to GRASP65 and contains two PDZ domains. GRASP55 is myristoylated and palmitoylated. Unlike GRASP65, GRASP55 does not have detectable binding with the vesicle docking protein GM130 and is located on the medial-Golgi rather than cis-Golgi. Both GRASP55 and GRASP65 function in the stacking of Golgi cisternae. The novel coiled-coil protein golgin 45 interacts with GRASP55 and the GTP form of Rab 2, suggesting that GRASP55 and golgin 45 form a Rab 2 effector complex on medial-Golgi essential for normal protein transport and Golgi structure. ERK2 directly phosphorylates GRASP55, which is phosphorylated in mitotic cells, suggesting that mitogen-activated protein kinase kinase (MKK)/ERK pathway phosphorylates the Golgi during mitosis.

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SPECIFICATIONS

Catalog Number

BS3306

Size

100ug/100ul

Applications

WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

liquid

Purity

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Antigen

Synthetic peptide, corresponding to amino acids 180-234 of Human GRASP55.

Species

GRASP55 (L215) pAb detects endogenous levels of GRASP55 protein.

Dilutions

WB: 1:500~1:1000

Swiss Prot

Q9H8Y8

Storage Temp

Store at 4 degrees C short term. Aliquot and store at -20 degrees C long term. Avoid freeze-thaw cycles.

Concentration

1ug/ul