CALR Recombinant Rabbit mAb - #BF3219

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Product: CALR Recombinant Rabbit mAb
Catalog: BF3219
Description: Rabbit monoclonal antibody to CALR
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Mol.Wt.: 55 kDa(Observed); 48kD(Calculated).
Uniprot: P27797

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 100ul $280 In stock

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MSDS
Data Sheet
COA
Protocols
WB Handbook
IHC Protocol
IF/ICC Protocol

Product Info

Source:
Rabbit IgG
Application:
WB 1:1000-1:5000, IHC 1:200-1:500, IF/ICC 1:200-1:500
*The optimal dilutions should be determined by the end user. For optimal experimental results, antibody reuse is not recommended.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Clonality:
Monoclonal [ReFirm22666]
Specificity:
CALR Recombinant Rabbit mAb detects endogenous levels of CALR.
Conjugate:
Unconjugated.
Purification:
Affinity-chromatography.
Storage:
Rabbit IgG in Tris-Glycine (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

Autoantigen RO; CALR; CALR protein; CALR_HUMAN; Calregulin; Calreticulin; cC1qR; CRP55; CRT; CRTC; Endoplasmic reticulum resident protein 60; Epididymis secretory sperm binding protein Li 99n; ERp60; FLJ26680; grp60; HACBP; HEL S 99n; RO; Sicca syndrome antigen A (autoantigen Ro; calreticulin); Sicca syndrome antigen A; SSA;

Immunogens

Immunogen:

A synthetic peptide from human CALR

Uniprot:

P27797(CALR_HUMAN) >>Visit HPA database.

Gene(ID):
CALR(811)
Description:
Calreticulin is a multifunctional protein that acts as a major Ca(2+)-binding (storage) protein in the lumen of the endoplasmic reticulum. It is also found in the nucleus,suggesting that it may have a role in transcription regulation. Calreticulin binds to the synthetic peptide KLGFFKR,which is almost identical to an amino acid sequence in the DNA-binding domain of the superfamily of nuclear receptors. Calreticulin binds to antibodies in certain sera of systemic lupus and Sjogren patients which contain anti-Ro,SSA antibodies,it is highly conserved among species,and it is located in the endoplasmic and sarcoplasmic reticulum where it may bind calcium. The amino terminus of calreticulin interacts with the DNA-binding domain of the glucocorticoid receptor and prevents the receptor from binding to its specific glucocorticoid response element. Calreticulin can inhibit the binding of androgen receptor to its hormone-responsive DNA element and can inhibit androgen receptor and retinoic acid receptor transcriptional activities in vivo,as well as retinoic acid-induced neuronal differentiation. Thus,calreticulin can act as an important modulator of the regulation of gene transcription by nuclear hormone receptors. Systemic lupus erythematosus is associated with increased autoantibody titers against calreticulin but calreticulin is not a Ro,SS-A antigen. Earlier papers referred to calreticulin as an Ro,SS-A antigen but this was later disproven. Increased autoantibody titer against human calreticulin is found in infants with complete congenital heart block of both the IgG and IgM classes.
Sequence:
MLLSVPLLLGLLGLAVAEPAVYFKEQFLDGDGWTSRWIESKHKSDFGKFVLSSGKFYGDEEKDKGLQTSQDARFYALSASFEPFSNKGQTLVVQFTVKHEQNIDCGGGYVKLFPNSLDQTDMHGDSEYNIMFGPDICGPGTKKVHVIFNYKGKNVLINKDIRCKDDEFTHLYTLIVRPDNTYEVKIDNSQVESGSLEDDWDFLPPKKIKDPDASKPEDWDERAKIDDPTDSKPEDWDKPEHIPDPDAKKPEDWDEEMDGEWEPPVIQNPEYKGEWKPRQIDNPDYKGTWIHPEIDNPEYSPDPSIYAYDNFGVLGLDLWQVKSGTIFDNFLITNDEAYAEEFGNETWGVTKAAEKQMKDKQDEEQRLKEEEEDKKRKEEEEAEDKEDDEDKDEDEEDEEDKEEDEEEDVPGQAKDEL

Research Backgrounds

Function:

Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export. Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis (By similarity).

Subcellular Location:

Endoplasmic reticulum lumen. Cytoplasm>Cytosol. Secreted>Extracellular space>Extracellular matrix. Cell surface. Sarcoplasmic reticulum lumen.
Note: Also found in cell surface (T cells), cytosol and extracellular matrix (PubMed:10358038). Associated with the lytic granules in the cytolytic T-lymphocytes.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Family&Domains:

Can be divided into a N-terminal globular domain, a proline-rich P-domain forming an elongated arm-like structure and a C-terminal acidic domain. The P-domain binds one molecule of calcium with high affinity, whereas the acidic C-domain binds multiple calcium ions with low affinity.

The interaction with glycans occurs through a binding site in the globular lectin domain.

The zinc binding sites are localized to the N-domain.

Associates with PDIA3 through the tip of the extended arm formed by the P-domain.

Belongs to the calreticulin family.

Research Fields

· Cellular Processes > Transport and catabolism > Phagosome.   (View pathway)

· Genetic Information Processing > Folding, sorting and degradation > Protein processing in endoplasmic reticulum.   (View pathway)

· Human Diseases > Infectious diseases: Parasitic > Chagas disease (American trypanosomiasis).

· Human Diseases > Infectious diseases: Viral > HTLV-I infection.

· Organismal Systems > Immune system > Antigen processing and presentation.   (View pathway)

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