CREB3 / LZIP

cAMP responsive element binding protein 3

Endoplasmic reticulum (ER)-bound transcription factor that plays a role in the unfolded protein response (UPR). Involved in cell proliferation and migration, tumor suppression and inflammatory gene expression. Plays also a role in the human immunodeficiency virus type 1 (HIV-1) virus protein expression and in the herpes simplex virus-1 (HSV-1) latent infection and reactivation from latency. Isoform 2 plays a role in the unfolded protein response (UPR). Isoform 2 acts as a positive regulator of LKN-1/CCL15-induced chemotaxis signaling of leukocyte cell migration. Isoform 2 may play a role as a cellular tumor suppressor that is targeted by the hepatitis C virus (HSV) core protein. Isoform 2 represses the VP16-mediated transactivation of immediate early genes of the HSV-1 virus by sequestring host cell factor-1 HCFC1 in the ER membrane of sensory neurons, thereby preventing the initiation of the replicative cascade leading to latent infection. Isoform 3 functions as a negative transcriptional regulator in ligand-induced transcriptional activation of the glucocorticoid receptor NR3C1 by recruiting and activating histone deacetylases (HDAC1, HDAC2 and HDAC6). Isoform 3 decreases the acetylation level of histone H4. Isoform 3 does not promote the chemotactic activity of leukocyte cells.Processed cyclic AMP-responsive element-binding protein 3: acts as a transcription factor that activates unfolded protein response (UPR) target genes during endoplasmic reticulum (ER) stress response. Promotes cell survival against ER stress-induced apoptotic cell death during UPR. Activates transcription from CRE and C/EBP-containing reporter genes. Induces transcriptional activation of chemokine receptors. Activates transcription of genes required for reactivation of the latent HSV-1 virus. Down-regulates Tat-dependent transcription of the HIV-1 LTR by interacting with HIV-1 Tat. It's transcriptional activity is inhibited by CREBZF in a HCFC1-dependent manner, by the viral transactivator protein VP16 and by the HCV core protein. Binds DNA to the cAMP response element (CRE) (consensus: 5'-GTGACGT[AG][AG]-3') and C/EBP sequences present in many viral and cellular promoters. Binds to the unfolded protein respons element (UPRE) consensus sequences sites. Binds DNA to the 5'-CCAC[GA]-3'half of ERSE II (5'-ATTGG-N-CCACG-3'). Associates with chromatin to the HERPUD1 promoter.

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Proteins (4)

Type

Over-Expression Lysate (2)

Recombinant (2)

Target

CREB3 / LZIP (4)

Publications

No (4)

Tag

GST (1)

GST, N-terminus (1)

Myc-DDK (Flag) (2)

Species

Human (3)

Source

293T Cells (1)

HEK 293 Cells (1)

Wheat Germ Extract (2)

Purification

Purified (1)

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Human CREB3 / LZIP Protein (Recombinant GST, N-terminus) (aa273-371) - LS-G61526

Source:

Wheat Germ Extract

Tag:

GST, N-terminus

Price:

10 µg/$479; 25 µg/$670

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CREB3 / LZIP Protein (Over-Expression Lysate Myc-DDK (Flag)) (Full Length) - LS-G115350

Source:

HEK 293 Cells

Tag:

Myc-DDK (Flag)

Molecular Weight:

41.2 kDa

Price:

100 µg/$494

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Human CREB3 / LZIP Protein (Recombinant GST) (Full Length) - LS-G32184

Source:

Wheat Germ Extract

Tag:

GST

Molecular Weight:

67.8 kDa

Price:

10 µg/$479; 25 µg/$670

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Human CREB3 / LZIP Protein (Over-Expression Lysate Myc-DDK (Flag)) (Full Length) - LS-G80150

Source:

293T Cells

Tag:

Myc-DDK (Flag)

Molecular Weight:

41.2 kDa

Price:

20 µg/$150

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