Proteomics

Dataset Information

129

TAP-GluN1, PSD95-TAP, WT (control) BNP-LC-MS/MS proteomics


ABSTRACT: TAP-GluN1 (840 kDa and 1.5 MDa), PSD95-TAP (1.5 MDa) and WT (control; 1.5 MDa) native complexes from Grin1^TAP/TAP, Dlg4^TAP/TAP, and WT mouse forebrain (cortex and hippocampus), respectively. Purified samples were seperated by blue native PAGE. Bands were excised, digested with trypsin. Peptides were identified by LC-MS/MS.

INSTRUMENT(S): LTQ Orbitrap, instrument model

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Brain

SUBMITTER: Rene Frank  

LAB HEAD: Seth Grant

PROVIDER: PXD000011 | Pride | 2016-04-20

REPOSITORIES: Pride

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Publications

NMDA receptors are selectively partitioned into complexes and supercomplexes during synapse maturation.

Frank René A W RA   Komiyama Noboru H NH   Ryan Tomás J TJ   Zhu Fei F   O'Dell Thomas J TJ   Grant Seth G N SG  

Nature communications 20160427


How neuronal proteomes self-organize is poorly understood because of their inherent molecular and cellular complexity. Here, focusing on mammalian synapses we use blue-native PAGE and 'gene-tagging' of GluN1 to report the first biochemical purification of endogenous NMDA receptors (NMDARs) directly from adult mouse brain. We show that NMDARs partition between two discrete populations of receptor complexes and ∼1.5 MDa supercomplexes. We tested the assembly mechanism with six mouse mutants, which  ...[more]

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