CPEB1 blocking peptide

CPEB1 Antibody (C-term) Blocking Peptide

• Gene Names: CPEB1; CPEB; CPEB-1; h-CPEB; CPE-BP1; hCPEB-1
• Synonyms: CPEB1; CPEB1 Antibody (C-term) Blocking Peptide; Cytoplasmic polyadenylation element-binding protein 1; CPE-BP1; CPE-binding protein 1; h-CEBP; hCPEB-1; CPEB; CPEB1 blocking peptide

• Form/Format: Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
• Sequence Length: 566

• Cellular Location: Cytoplasm, P-body. Cytoplasmic granule. Cell junction, synapse. Membrane. Cell junction, synapse, postsynaptic cell membrane, postsynaptic density. Cell projection, dendrite. Note: Also found in stress granules. Recruited to stress granules (SGs) upon arsenite treatment. In dendrites (By similarity). Localizes in synaptosomes at dendritic synapses of neurons (By similarity). Strongly enriched in postsynaptic density (PSD) fractions (By similarity) Transported into dendrites in a microtubule-dependent fashion and colocalizes in mRNA-containing particles with TACC3, dynein and kinesin (By similarity). Membrane-associated (By similarity) Colocalizes at excitatory synapses with members of the polyadenylation and translation complex factors (CPSF, APLP1, TACC3, AURKA, SYP, etc.) including CPE-containing RNAs (By similarity).
• Tissue Location: Isoform 1 is expressed in immature oocytes, ovary, brain and heart. Isoform 2 is expressed in brain and heart Isoform 3 and isoform 4 are expressed in brain. Expressed in breast tumors and several tumor cell lines
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Related Product Information for CPEB1 blocking peptide

Sequence-specific RNA-binding protein that regulates mRNA cytoplasmic polyadenylation and translation initiation during oocyte maturation, early development and at postsynapse sites of neurons. Binds to the cytoplasmic polyadenylation element (CPE), an uridine-rich sequence element (consensus sequence 5'-UUUUUAU- 3') within the mRNA 3'-UTR. In absence of phosphorylation and in association with TACC3 is also involved as a repressor of translation of CPE-containing mRNA; a repression that is relieved by phosphorylation or degradation (By similarity). Involved in the transport of CPE-containing mRNA to dendrites; those mRNAs may be transported to dendrites in a translationally dormant form and translationally activated at synapses (By similarity). Its interaction with APLP1 promotes local CPE-containing mRNA polyadenylation and translation activation (By similarity). Induces the assembly of stress granules in the absence of stress.

NCBI and Uniprot Product Information

• NCBI GI #: 74762720
• NCBI GeneID: 64506
• UniProt Accession #: Q9BZB8; Q86W46; Q8IV41; Q9BZB7; Q9H8V5; B7Z6C6
• Molecular Weight: 53,635 Da
• NCBI Official Full Name: Cytoplasmic polyadenylation element-binding protein 1
• NCBI Official Synonym Full Names: cytoplasmic polyadenylation element binding protein 1
• NCBI Official Symbol: CPEB1
• NCBI Official Synonym Symbols: CPEB; CPEB-1; h-CPEB; CPE-BP1; hCPEB-1
• NCBI Protein Information: cytoplasmic polyadenylation element-binding protein 1
• UniProt Protein Name: Cytoplasmic polyadenylation element-binding protein 1
• UniProt Gene Name: CPEB1
• UniProt Synonym Gene Names: CPEB; CPE-BP1; CPE-binding protein 1; h-CPEB; hCPEB-1
• UniProt Entry Name: CPEB1_HUMAN

NCBI Description

This gene encodes a member of the cytoplasmic polyadenylation element binding protein family. This highly conserved protein binds to a specific RNA sequence, called the cytoplasmic polyadenylation element, found in the 3' untranslated region of some mRNAs. The encoded protein functions in both the cytoplasm and the nucleus. It is involved in the regulation of mRNA translation, as well as processing of the 3' untranslated region, and may play a role in cell proliferation and tumorigenesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

Uniprot Description

CPEB: cytoplasmic polyadenylation element binding protein 1. Binds to the protein CPE and drives its polyadenylation. Activated by the protein kinase AurA. Insulin and progesterone stimulate AurA-catalyzed phosphorylation of CPEB in oocytes. Neuronal CPEB regulates local protein synthesis and stabilizes synapse-specific long-term facilitation in aplysia.

Protein type: RNA-binding; Translation

Chromosomal Location of Human Ortholog: 15q25.2

Cellular Component: cytoplasm; neuron projection; nucleoplasm; nucleus; synapse

Molecular Function: mRNA 3'-UTR binding; ribosome binding; translation factor activity, nucleic acid binding; translation repressor activity, nucleic acid binding

Biological Process: cellular response to insulin stimulus