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Key Documents

C0618

Sigma-Aldrich

Anti-Calsequestrin-1

enhanced validation

~1.6 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonyme(s) :

Anti-CASQ1, Aspartactin, CALMITINE, Calsequestrin- skeletal muscle isoform

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About This Item

Numéro MDL:
Code UNSPSC :
12352203
Nomenclature NACRES :
NA.41

Source biologique

rabbit

Conjugué

unconjugated

Forme d'anticorps

affinity isolated antibody

Type de produit anticorps

primary antibodies

Clone

polyclonal

Forme

buffered aqueous solution

Poids mol.

antigen ~60 kDa

Espèces réactives

canine, mouse, human, rat

Validation améliorée

recombinant expression
Learn more about Antibody Enhanced Validation

Concentration

~1.6 mg/mL

Technique(s)

western blot: 0.5-1 μg/mL using extracts of rat skeletal muscle S1 fraction

Numéro d'accès UniProt

Conditions d'expédition

dry ice

Température de stockage

−20°C

Modification post-traductionnelle de la cible

unmodified

Informations sur le gène

human ... CASQ1(844)
mouse ... Casq1(12372)

Description générale

Calsequestrin is expected to modulate ryanodine receptor (RyR) signaling and Ca2+ release with the help of triadin and junction proteins.

Immunogène

synthetic peptide corresponding to amino acids 66-84 located near the N-terminus of mouse calsequestrin-1, conjugated to KLH. This sequence is identical in human, rat, and dog calsequestrin-1 and highly conserved in bovine (single amino acid substitution). This sequence is not found in calsequestrin-2.

Application

Anti-Calsequestrin-1 antibody produced in rabbit has been used in immunofluorescence.
Anti-Calsequestrin-1 antibody produced in rabbit is suitable for western blotting at a concentration of 0.5-1μg/mL using extracts of rat skeletal muscle S1 fraction.

Actions biochimiques/physiologiques

Calsequestrin-1 is a putative auto-antigen associated with eye muscle inflammation in Graves′ disease. Calsequestrin-2 (55 kDa) is found in the SR′s terminal cisternae luminal space of cardiac, slow skeletal muscle cells and may be in platelets. The major Ca2+ binding protein in cardiac and skeletal muscle is a high-capacity, low-affinity Ca2+ binding glycoprotein, which functions as an internal Ca2+ store in the lumen of the SR. It helps in controlling the smooth-muscle contraction. Calsequestrin is expected to modulate ryanodine receptor (RyR) signaling and Ca2+ release with the help of triadin and junction proteins.†

Description de la cible

Calsequestrin (CS also known as CSQ), the major Ca2+ binding protein in cardiac and skeletal muscle, is a high-capacity, low-affinity Ca2+ binding glycoprotein, which function as an internal Ca2+ store in the lumen of the SR.1-3 In mammals, two forms of the protein exist, calsequestrin-1 (CASQ-1) and calsequestrin-2 (CASQ-2), which encode the fast-twitch skeletal muscle and cardiac calsequestrin, respectively. Calsequestrin-1 is found in the SRs terminal cisternae luminal space of fast skeletal muscle cells. Calsequestrin-1 is a putative autoantigen associated with eye muscle inflammation in Graves′ disease.

Forme physique

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Clause de non-responsabilité

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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Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

K Gunji et al.
Autoimmunity, 29(1), 1-9 (1999-03-03)
It is generally accepted that thyroid-associated ophthalmopathy (TAO) is an autoimmune disease of the eye muscle (EM) and the surrounding orbital connective tissue in which circulating antibodies play an important role. Antibodies against EM membrane proteins of 63-67kDa mol. wt.
Calsequestrin, triadin and more: the molecules that modulate calcium release in cardiac and skeletal muscle
Rios E and Gyorke S
The Journal of Physiology, 587(Pt 13), 3069-3069 (2009)
Identification of cellular pathogenicity markers for SIL1 mutations linked to Marinesco-Sjogren syndrome
Gatz C, et al.
Frontiers in Neurology, 10 (2019)
B Gopinath et al.
Clinical and experimental immunology, 145(1), 56-62 (2006-06-24)
We have identified several eye muscle antigens and studied the significance of the corresponding serum autoantibodies in patients with Graves' disease. Of these antigens, only calsequestrin is expressed more in eye muscle than other skeletal muscles, which could explain at
A O Jorgensen et al.
The Journal of cell biology, 98(4), 1597-1602 (1984-04-01)
Localization of calsequestrin in chicken ventricular muscle cells was determined by indirect immunofluorescence and immuno-Protein A-colloidal gold labeling of cryostat and ultracryotomy sections, respectively. Calsequestrin was localized in the lumen of peripheral junctional sarcoplasmic reticulum, as well as in the

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