Anti-ATF4 Antibody Picoband™

Product Name

Anti-ATF4 Antibody Picoband™

View all ATF4 Antibodies

SKU/Catalog Number

A00371-1

Size

100 μg/vial

Form

Lyophilized

Description

Boster Bio Anti-ATF4 Antibody Picoband™ catalog # A00371-1. Tested in IHC, WB applications. This antibody reacts with Human.

Storage & Handling

Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles.

Cite This Product

Anti-ATF4 Antibody Picoband™ (Boster Biological Technology, Pleasanton CA, USA, Catalog # A00371-1)

Host

Rabbit

Contents

Each vial contains 4mg Trehalose, 0.9mg NaCl, 0.2mg Na₂HPO₄, 0.05mg NaN₃.

Clonality

Polyclonal

Isotype

Rabbit IgG

Immunogen

A synthetic peptide corresponding to a sequence at the C-terminus of human ATF4, which shares 97.6% amino acid (aa) sequence identity with both mouse and rat ATF4.

*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.

Cross-reactivity

No cross-reactivity with other proteins.

Reactive Species

A00371-1 is reactive to ATF4 in Human

Applications

A00371-1 is guaranteed for IHC, WB Boster Guarantee

Observed Molecular Weight

50 kDa

Calculated molecular weight

38.59kDa

Background of ATF4

ATF4, Activating Transcription Factor 4, is also known as CREB2. ATF4 belongs to the large ATF/CREB family of transcription factors which bind DNA via their basic region and dimerize via their leucine zipper domain to form a variety of homo- and heterodimers to regulate gene transcription. It is identified that members of this family share significant sequence similarity within a leucine zipper DNA-binding motif and an adjacent basic region. The ATF4 gene is mapped to chromosome 22. Unlike CREB, which activates transcription from CRE-containing promoters, CREB2 functions as a specific repressor of CRE-dependent transcription. The transcriptional repressor activity resides within the C-terminal leucine zipper and basic domain region of the CREB2 protein.

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Reconsitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

Western blot, 0.1-0.5μg/ml
Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml

Validation Images & Assay Conditions

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Figure 1. Western blot analysis of ATF4 using anti-ATF4 antibody (A00371-1).
Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 30 ug of sample under reducing conditions.
Lane 1: human SW620 whole cell lysates,
Lane 2: human Hela whole cell lysates.
After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-ATF4 antigen affinity purified polyclonal antibody (Catalog # A00371-1) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for ATF4 at approximately 50 kDa. The expected band size for ATF4 is at 39 kDa.

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Figure 2. IHC analysis of ATF4 using anti-ATF4 antibody (A00371-1).
ATF4 was detected in paraffin-embedded section of human ovary cancer tissue. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2μg/ml rabbit anti-ATF4 Antibody (A00371-1) overnight at 4℃. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37℃. The tissue section was developed using Strepavidin-Biotin-Complex (SABC)(Catalog # SA1022) with DAB as the chromogen.

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Figure 3. IHC analysis of ATF4 using anti-ATF4 antibody (A00371-1).
ATF4 was detected in paraffin-embedded section of human prostatic cancer tissue. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2μg/ml rabbit anti-ATF4 Antibody (A00371-1) overnight at 4℃. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37℃. The tissue section was developed using Strepavidin-Biotin-Complex (SABC)(Catalog # SA1022) with DAB as the chromogen.

Gene/Protein Information For ATF4 (Source: Uniprot.org, NCBI)

Alternative Names

activating transcription factor 4 (tax-responsive enhancer element B67); Activating transcription factor 4; ATF4; cAMP-dependent transcription factor ATF-4; cAMP-responsive element-binding protein 2; CREB-2DNA-binding protein TAXREB67; cyclic AMP-dependent transcription factor ATF-4; Cyclic AMP-responsive element-binding protein 2; TAXREB67; TAXREB67CREB2cAMP response element-binding protein 2; Tax-responsive enhancer element-binding protein 67; TXREB ATF4 CREB-2, CREB2, TAXREB67, TXREB activating transcription factor 4 cyclic AMP-dependent transcription factor ATF-4|DNA-binding protein TAXREB67|cAMP response element-binding protein 2|cAMP-dependent transcription factor ATF-4|cAMP-responsive element-binding protein 2|cyclic AMP-responsive element-binding protein 2|tax-responsive enhancer element B67|tax-responsive enhancer element-binding protein 67

For more info on ATF4, check out the ATF4 Infographic

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In this infographic, you will see the following information for ATF4: database IDs, superfamily, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post-translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact [email protected].

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