What is a response element binding protein?

The cAMP-response element binding protein (CREB) is an intracellular protein that regulates the expression of genes that are important in dopaminergic neurons. Dopamine affects the phosphorylation of CREB via G protein-coupled receptors.

Is CREB an activator?

The Transcription Activator CREB CREB is a member of the leucine-zipper superfamily of transcription factors. It is triggered in response to external stimuli that activate intracellular signaling cascades that culminate in the phosphorylation of CREB.

What genes does CREB transcribe?

Genes whose transcription is regulated by CREB include: c-fos, BDNF, tyrosine hydroxylase, numerous neuropeptides (such as somatostatin, enkephalin, VGF, corticotropin-releasing hormone), and genes involved in the mammalian circadian clock (PER1, PER2).

What may be beneficial about CREB?

CREB is one of the most well studied proteins that are important for memory formation in young adult animals. Other proteins, such as early growth response protein 1 (EGR-1) and brain-derived neurotrophic factor (BDNF), have also been demonstrated to be important for memory formation in young adult animals.

Is CREB a repressor?

CREB-2, a cellular CRE-dependent transcription repressor, functions in association with Tax as an activator of the human T-cell leukemia virus type 1 promoter. J Virol.

What is CREB in cell signaling?

CREB is a bZIP transcription factor that activates target genes through cAMP response elements. CREB is able to mediate signals from numerous physiological stimuli, resulting in regulation of a broad array of cellular responses. Additionally, CREB signaling is involved in learning and memory in several organisms (4-6).

What does the CREB binding protein do?

The CREB binding protein ensures the DNA is ready for transcription by attaching a small molecule called an acetyl group to proteins called histones (a process called acetylation). Histones are structural proteins that bind DNA and give chromosomes their shape.

What activates CREB?

Abstract. CREB is a transcription factor that regulates diverse cellular responses, including proliferation, survival, and differentiation. CREB is induced by a variety of growth factors and inflammatory signals and subsequently mediates the transcription of genes containing a cAMP-responsive element.

What is required for PKC activation?

PKC enzymes in turn are activated by signals such as increases in the concentration of diacylglycerol (DAG) or calcium ions (Ca2+). Hence PKC enzymes play important roles in several signal transduction cascades. The PKC family consists of fifteen isozymes in humans.

How does cAMP response element binding protein ( CREB ) work?

The cAMP-response element binding protein (CREB) is an intracellular protein that regulates the expression of genes that are important in dopaminergic neurons. Dopamine affects the phosphorylation of CREB via G protein-coupled receptors.

Which is transcription factor binds to cAMP responsive element?

CREM transcription factors also play an important role in many physiological systems, such as cardiac function, circadian rhythms, locomotion and spermatogenesis. This gene encodes a bZIP transcription factor that binds to the cAMP responsive element found in many viral and cellular promoters.

Where does the cAMP responsive element modulator gene end?

The chromosomal location of CREM gene is at 10p11.21, where it starts at 35415769 and ends at 35501886 bp from pter ( according to hg19-Feb_2009) CAMP responsive element modulator has been shown to interact with FHL5.

Where are the cAMP responsive element sites located?

The cAMP response element sites can be found in the promoter region of some postmeiotic genes, so that the CREM can target and regulate these genes. Two studies proved that treat the rats with Salvia hypoleuca and Alpina galanga can significantly increased the CREM gene expression.