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Key Documents

HPA026823

Sigma-Aldrich

Anti-CASQ1 antibody produced in rabbit

enhanced validation

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

Synonym(s):

Anti-CASQ, Anti-PDIB1, Anti-calsequestrin 1 (fast-twitch, skeletal muscle)

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About This Item

MDL number:
UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.43

biological source

rabbit

Quality Level

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

enhanced validation

orthogonal RNAseq
recombinant expression
Learn more about Antibody Enhanced Validation

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:1000-1:2500

immunogen sequence

EHYKAFEDAAEEFHPYIPFFATFDSKVAKKLTLKLNEIDFYEAFMEEPVTIPDKPNSEEEIVNFVEEHRRSTLRKLKPESMYETWE

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CASQ1(844)

General description

Calsequestrin (CASQ) 1 gene is mapped to human chromosome 1q21, a region associated with type 2 diabetes in Amish and other population. The gene codes for a calcium storage protein, CASQ1, expressed in sarcoplasmic reticulum of fast-twitch skeletal muscle cells.

Immunogen

calsequestrin 1 (fast-twitch, skeletal muscle) 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

Calsequestrin (CASQ) 1 is one of the major components of the protein backbone of luminal Ca2+ reservoir. It plays a crucial role in calcium flux by regulating calcium channel activity and associating with other proteins localized in the sarcoplasmic reticulum. CASQ1 is involved in insulin- and/or contraction-stimulated glucose transport. Mutation of this gene leads to the accumulation of CASQ1 and other proteins in sarcoplasmic reticulum (SR) vacuole, which results in vacuolar myopathy. Experimental studies on mice shows that CASQ1 is involved in the maintenance of calcium homeostasis and size of terminal cisternae (TC) in skeletal muscle fibers. Alteration in the expression of CASQ1 affects GLUT4 recruitment and insulin sensitivity. Single-nucleotide polymorphisms in the calsequestrin-1 gene act as a genetic marker for graves′ ophthalmopathy (GO) and hashimoto′s thyroiditis (HT).

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 APREST70701

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


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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Novel single-nucleotide polymorphisms in the calsequestrin-1 gene are associated with Graves' ophthalmopathy and Hashimoto's thyroiditis.
Lahooti H
Clinical Ophthalmology (Auckland, N.Z.), 9, 1731-1740 (2015)
Calsequestrin (CASQ1) rescues function and structure of calcium release units in skeletal muscles of CASQ1-null mice.
Tomasi M
American Journal of Physiology. Cell Physiology, 302(3), C575-C586 (2012)
Daniela Rossi et al.
Human mutation, 35(10), 1163-1170 (2014-08-15)
A missense mutation in the calsequestrin-1 gene (CASQ1) was found in a group of patients with a myopathy characterized by weakness, fatigue, and the presence of large vacuoles containing characteristic inclusions resulting from the aggregation of sarcoplasmic reticulum (SR) proteins.
Mao Fu et al.
Diabetes, 53(12), 3292-3299 (2004-11-25)
Calsequestrin (CASQ)1 is involved in intracellular storage and release of calcium, a process that has been shown to mediate glucose transport in muscle. Its gene, CASQ1, is encoded on chromosome 1q21, a region that has been linked to type 2
Swapan Kumar Das et al.
Diabetes, 53(12), 3300-3306 (2004-11-25)
Genome-wide scans in multiple populations have identified chromosome 1q21-q24 as one susceptibility region for type 2 diabetes. To map the susceptibility genes, we first placed a dense single nucleotide polymorphism (SNP) map across the linked region. We identified two SNPs

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