Rabbit anti-Human PPP1R9B Polyclonal Antibody

Uniprot Id

Q96SB3

Target Species

Human

Target Name

PPP1R9B

Target Full Name

Neurabin-2

Target Function

Seems to act as a scaffold protein in multiple signaling pathways. Modulates excitatory synaptic transmission and dendritic spine morphology. Binds to actin filaments (F-actin) and shows cross-linking activity. Binds along the sides of the F-actin. May play an important role in linking the actin cytoskeleton to the plasma membrane at the synaptic junction. Believed to target protein phosphatase 1/PP1 to dendritic spines, which are rich in F-actin, and regulates its specificity toward ion channels and other substrates, such as AMPA-type and NMDA-type glutamate receptors. Plays a role in regulation of G-protein coupled receptor signaling, including dopamine D2 receptors and alpha-adrenergic receptors. May establish a signaling complex for dopaminergic neurotransmission through D2 receptors by linking receptors downstream signaling molecules and the actin cytoskeleton. Binds to ADRA1B and RGS2 and mediates regulation of ADRA1B signaling. May confer to Rac signaling specificity by binding to both, RacGEFs and Rac effector proteins. Probably regulates p70 S6 kinase activity by forming a complex with TIAM1. Required for hepatocyte growth factor (HGF)-induced cell migration.

Target Subcellular Location

Cytoplasm, cytoskeleton. Nucleus. Cell projection, dendritic spine. Cell junction, synapse, postsynaptic density. Cell junction, synapse. Cell junction, adherens junction. Cytoplasm. Cell membrane. Cell projection, lamellipodium. Cell projection, filopodium. Cell projection, ruffle membrane.

Target Synonyms

FLJ30345; NEB2_HUMAN; Neurabin II; Neurabin-2; Neurabin-II; Neurabin2; NeurabinII; Neural tissue specific F actin binding protein II; p130; PP1bp134; PPP1R6; PPP1R9; Ppp1r9b; Protein phosphatase 1 regulatory subunit 9B; SPINO; Spinophilin

Target Background

This gene encodes a scaffold protein that functions as a regulatory subunit of protein phosphatase 1a. Expression of this gene is particularly high in dendritic spines, suggesting that the encoded protein may play a role in receiving signals from the central nervous system. The encoded protein has putative tumor suppressor function and decreased expression has been observed in tumors.