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Key Documents

HPA008196

Sigma-Aldrich

Anti-SELENOK antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Synonym(s):

Anti-SELK, Anti-AC012467.9, Anti-Selenoprotein K

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence

KRRSYGNSSDSRYDDGRGPPGNPPRRMGRINHLRGPS

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... SELK(58515)

General description

Selenoprotein K (SELK) is an 11kDa protein and is expressed in the endoplasmic reticulum (ER).

Immunogen

selenoprotein K recombinant protein epitope signature tag (PrEST)

Application

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.

Biochem/physiol Actions

Selenoprotein K (SELK) functions in protecting hepatic (HepG2) cells from endoplasmic reticulum (ER) stress agent-induced apoptosis and is itself regulated by ER stress. It is a novel antioxidant in cardiomyocytes and is involved in the regulation of cellular redox balance. The protein SECIS binding protein 2 (SBP2) binds to the SELK Sec insertion sequence element (SECIS) through the conserved non-Watson-Crick base pair. SELK can regulate and determine the nature of the substrate translocated through the Derlin channel by interacting with the ER-associated degradation (ERAD) components like Derlins, p97 ATPase and selenoprotein S (SelS). Ca2+ influx during immune cell activation is taken care by SELK and it is also the substrate of calpains, which are proteases involved in modulating apoptosis.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST70191

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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SelK is a novel ER stress-regulated protein and protects HepG2 cells from ER stress agent-induced apoptosis.
S Du
Archives of Biochemistry and Biophysics, 502(2), 137-143 (2010)
Selenoprotein S is involved in maintenance and transport of multiprotein complexes.
Turanov AA, Shchedrina VA, Everley RA, et al.
The Biochemical Journal, 462(3), 555-565 (2014)
Cailing Lu et al.
FEBS letters, 580(22), 5189-5197 (2006-09-12)
Selenoprotein K (SelK) is a newly identified selenoprotein. We showed that selenium incorporation into SelK was dependent on the 3'UTR of SelK mRNA. Sec insertion sequence (SECIS) RNA binding assays demonstrated that human SBP2 bound to the SelK SECIS element
Valentina A Shchedrina et al.
The Journal of biological chemistry, 286(50), 42937-42948 (2011-10-22)
Selenoprotein K (SelK) is an 11-kDa endoplasmic reticulum (ER) protein of unknown function. Herein, we defined a new eukaryotic protein family that includes SelK, selenoprotein S (SelS), and distantly related proteins. Comparative genomics analyses indicate that this family is the
Zhipeng Li et al.
Nature chemical biology, 18(7), 751-761 (2022-06-01)
The selenoprotein glutathione peroxidase 4 (GPX4) prevents ferroptosis by converting lipid peroxides into nontoxic lipid alcohols. GPX4 has emerged as a promising therapeutic target for cancer treatment, but some cancer cells are resistant to ferroptosis triggered by GPX4 inhibition. Using

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