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Mouse Monoclonal 1433S antibody. Suitable for WB, Protein Array, IHC-P and reacts with Human, Recombinant full length protein - Human samples. Immunogen corresponding to Recombinant Full Length Protein corresponding to Human SFN.

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Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (AB268067), expandable thumbnail
  • Western blot - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (AB268067), expandable thumbnail
  • Protein Array - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (AB268067), expandable thumbnail

Key facts

Isotype
IgG1
Host species
Mouse
Storage buffer

pH: 7.2 - 7.4
Preservative: 0.05% Sodium azide
Constituents: PBS, 0.05% BSA

Form
Liquid
Clonality
Monoclonal

Immunogen

  • Recombinant Full Length Protein corresponding to Human SFN. Database link P31947

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
WBProtein ArrayIHC-P
Human
Tested
Expected
Tested
Recombinant full length protein - Human
Not recommended
Tested
Not recommended

Tested
Tested

Species
Human
Dilution info
1.00000-2.00000 µg/mL
Notes

Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Not recommended
Not recommended

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Tested
Tested

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Expected
Expected

Species
Human
Dilution info
Use at an assay dependent concentration.
Notes

-

Tested
Tested

Species
Human
Dilution info
1.00000-2.00000 µg/mL
Notes

Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Not recommended
Not recommended

Species
Recombinant full length protein - Human
Dilution info
-
Notes

-

Associated Products

Select an associated product type

4 products for Alternative Product

1 product for Alternative Version

Target data

Function

Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways (PubMed:15731107, PubMed:22634725, PubMed:28202711, PubMed:37797010). Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif (PubMed:15731107, PubMed:22634725, PubMed:28202711, PubMed:37797010). Binding generally results in the modulation of the activity of the binding partner (PubMed:15731107, PubMed:22634725, PubMed:28202711, PubMed:37797010). Promotes cytosolic retention of GBP1 GTPase by binding to phosphorylated GBP1, thereby inhibiting the innate immune response (PubMed:37797010). Also acts as a TP53/p53-regulated inhibitor of G2/M progression (PubMed:9659898). When bound to KRT17, regulates protein synthesis and epithelial cell growth by stimulating Akt/mTOR pathway (By similarity). Acts to maintain desmosome cell junction adhesion in epithelial cells via interacting with and sequestering PKP3 to the cytoplasm, thereby restricting its translocation to existing desmosome structures and therefore maintaining desmosome protein homeostasis (PubMed:24124604). Also acts to facilitate PKP3 exchange at desmosome plaques, thereby maintaining keratinocyte intercellular adhesion (PubMed:29678907). May also regulate MDM2 autoubiquitination and degradation and thereby activate p53/TP53 (PubMed:18382127).

Alternative names

HME1, SFN, 14-3-3 protein sigma, Epithelial cell marker protein 1, Stratifin

Recommended products

Mouse Monoclonal 1433S antibody. Suitable for WB, Protein Array, IHC-P and reacts with Human, Recombinant full length protein - Human samples. Immunogen corresponding to Recombinant Full Length Protein corresponding to Human SFN.

Key facts

Isotype
IgG1
Form
Liquid
Clonality
Monoclonal
Immunogen
  • Recombinant Full Length Protein corresponding to Human SFN. Database link P31947
Clone number
CPTC-SFN-2
Purification technique
Affinity purification Protein A/G
Light chain type
kappa
Concentration
Loading...
Purification notes

Purified from Bioreactor concentrate

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Notes

Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.

If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.

Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

The 14-3-3 sigma protein also known as SFN is a member of the 14-3-3 family of proteins. It plays a major role in cellular processes by regulating various signaling pathways. This protein has a molecular mass of about 28 kDa. The expression of 14-3-3 sigma is most notable in epithelial cells and it participates in cell cycle control. It interacts with a wide range of signaling molecules emphasizing its involvement in cellular regulation.

Biological function summary

14-3-3 sigma contributes to cell cycle arrest and apoptosis. As part of a complex it interacts with other proteins to ensure proper cell division and prevent abnormal growth. It binds to phosphorylated serine/threonine residues on its target proteins influencing their activity and function. By doing this it exerts control over cell cycle checkpoints and influences DNA damage response mechanisms.

Pathways

14-3-3 sigma interacts with several pathways that are critical for maintaining cell stability and response to stress. It participates in the PI3K/AKT pathway working closely with proteins like AKT1 to facilitate cell survival and growth suppression under stress conditions. Its involvement in this pathway ties it to the regulation of cell proliferation and survival interconnecting with broader cellular networks.

Associated diseases and disorders

Disruptions in 14-3-3 sigma function are linked to cancer and neurodegenerative diseases. In cancer its downregulation or loss leads to unchecked cell division contributing to tumor progression. In neurodegenerative diseases such as Alzheimer's the protein's interaction with tau phosphorylation processes affects disease progression. Furthermore it interacts with proteins like p53 emphasizing its role in tumor suppression and cellular stress responses.

Product promise

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In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

3 product images

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067)

    Formalin-fixed, paraffin-embedded human Skin stained for 14-3-3 Sigma/SFN using ab268067 at 2 μg/ml in immunohistochemical analysis.

  • Western blot - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067), expandable thumbnail

    Western blot - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067)

    All lanes: Western blot - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067) at 2 µg/mL

    All lanes: PC-3 (Human prostate adenocarcinoma cell line) whole cell lysate

    Predicted band size: 27 kDa

  • Protein Array - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067), expandable thumbnail

    Protein Array - Anti-14-3-3 sigma/SFN antibody [CPTC-SFN-2] (ab268067)

    Protein Array containing more than 19,000 full-length human proteins using ab268067. Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProtTM are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a MAb to its intended target. A MAb is considered to specific to its intended target, if the MAb has an S-score of at least 2.5. For example, if a MAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that MAb to protein X is equal to 29.

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Product protocols

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