Thermo Fisher Scientific Calnexin Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

1:2,000

-

Immunohistochemistry (IHC)

1:100-1:500

-

ELISA (ELISA)

1:20,000-1:60,000

-

Immunoprecipitation (IP)

0.2 µg/mL

-

Product Specifications

Species Reactivity

Chicken, Human, Mouse, Non-human primate, Rat

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

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Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.34 mg/mL

Purification

Affinity chromatography

Storage buffer

0.02M potassium phosphate, pH 7.2, with 0.15M NaCl, 50% glycerol

Contains

no preservative

Storage conditions

-20° C, Avoid Freeze/Thaw Cycles

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.

Anti-Calnexin is specific towards calnexin. A BLAST analysis was used to suggest cross-reactivity with Human, Mouse, Rat, Primate and Chicken based on 100% sequence homology. Cross-reactivity with calnexin from other sources has not been determined.

Target Information

Calnexin, also referred to as IP90, p88 and p90, is an approximately 90 kDa integral membrane protein of the endoplasmic reticulum (ER). Many resident ER proteins act as molecular chaperones and participate in the proper folding of polypeptides and their assembly into multisubunit proteins. Studies indicate that calnexin associates with the major histocompatibility complex (MHC) class I heavy chains, partial complexes of the T cell receptor and B cell membrane immunoglobulin, but not with completed receptor complexes. It has been shown that calnexin is a chaperone that retains incompletely or improperly folded proteins in the ER. The sequence Lys-Asp-Glu-Leu (KDEL) or a closely related sequence, is present at the carboxy-terminus of soluble ER resident proteins such as GRP78 and GRP94 and protein disulfide isomerase. Integral membrane ER resident proteins, like calnexin, often lack this KDEL sequence but contain positively charged cytosolic residues that ensure ER retention. Calnexin contains a large ER luminal domain (461 amino acids), a transmembrane segment (22 amino acids), and a cytoplasmic tail (89 amino acids).

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.