GRASP (GRP1-associated scaffold protein, tamalin) is a 395 amino acid proteinencoded by the human gene GRASP . GRASP is a scaffold protein that com-prises multiple protein-interacting domains, including a 95 kDa postsynaptic density protein (PSD-95)/discs-large/ZO-1 (PDZ) domain, a leucine-zipperregion and a carboxyl-terminal PDZ-binding motif. GRASP is involved with intracellular trafficking and contributes to the macromolecular organization of group 1 metabotropic glutamate receptors (mGluRs) at synapses. GRASP forms a heteromer composed of GRASP , PSCD2 and at least one mGluR-1. It also interacts with PSCD3, mGluR-2, mGluR-3 and mGluR-5. GRASP is highly expressed in brain and has lower levels of expression in lung, heart, embryo, kidney and ovary.Kitano, J., Kimura, K., Yamazaki, Y., Soda, T., Shigemoto, R., Nakajima, Y.and Nakanishi, S. 2002. Tamalin, J. Neurosci. 22: 280-1289.Hall, B.S., Gabernet-Castello, C., Voak, A., Goulding, D., Natesan, S.K. and Field, M.C. 2006. J. Biol. Chem. 281: 27600-27612. Sugi, T., Oyama, T., Muto, T., Nakanishi, S., Morikawa, K. and Jingami, H. 2007. Crystal structures of autoinhibitory PDZ domain of Tamalin EMBO J.26: 2192-2205.
Host
Rabbit
Immunogen
Peptide sequence around aa. 814-818(Q-E-I-V-R ) derived from Rat GRASP.
Raised In
Rabbit
Reactivity
Human, Mouse, Rat
Regulatory
RUO
Relevance
GRASP (GRP1-associated scaffold protein, tamalin) is a 395 amino acid proteinencoded by the human gene GRASP . GRASP is a scaffold protein that com-prises multiple protein-interacting domains, including a 95 kDa postsynaptic density protein (PSD-95)/discs-large/ZO-1 (PDZ) domain, a leucine-zipperregion and a carboxyl-terminal PDZ-binding motif. GRASP is involved with intracellular trafficking and contributes to the macromolecular organization of group 1 metabotropic glutamate receptors (mGluRs) at synapses. GRASP forms a heteromer composed of GRASP , PSCD2 and at least one mGluR-1. It also interacts with PSCD3, mGluR-2, mGluR-3 and mGluR-5. GRASP is highly expressed in brain and has lower levels of expression in lung, heart, embryo, kidney and ovary.
Kitano, J., Kimura, K., Yamazaki, Y., Soda, T., Shigemoto, R., Nakajima, Y.and Nakanishi, S. 2002. Tamalin, J. Neurosci. 22: 280-1289. Hall, B.S., Gabernet-Castello, C., Voak, A., Goulding, D., Natesan, S.K. and Field, M.C. 2006. J. Biol. Chem. 281: 27600-27612. Sugi, T., Oyama, T., Muto, T., Nakanishi, S., Morikawa, K. and Jingami, H. 2007. Crystal structures of autoinhibitory PDZ domain of Tamalin EMBO J.26: 2192-2205.
Species
Rattus Norvegicus (Rat)
Specificity
The antibody detects endogenous level of total GRASP protein.
Regulates the endosomal recycling back to the neuronal plasma membrane, possibly by connecting early and late recycling endosomal domains and promoting segregation of recycling endosomes from early endosomal membranes. Involved in the localization of recycling endosomes to dendritic spines, thereby playing a role in the maintenance of dendritic spine morphology. Required for the activity-induced AMPA receptor recycling to dendrite membranes and for long-term potentiation and synaptic plasticity.
Tissue Specificity
Expressed in the central nervous system; especially in neurons.
Buffer
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Format
liquid
Purification
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide
Purity
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.